WaterloggedRiver Cruise Watch

The river's logbook for cruise travellers

See the map Daily sailing schedule 14-day weather forecast

Your sailing

Emerald Sun · Splendours of Europe

Emerald Cruises · departs Wednesday 4 November 2026 · Amsterdam → Budapest · 15 days

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Latest readings: Monday 7 September 2026. Water levels change daily. Check again closer to your departure.

The Daily River Watch

Monday 7 September 2026

River levels this morning — not the levels expected on your sailing dates

Rain check: about 20 mm of rain is forecast above Pfelling over fourteen days. Budapest gets almost none. The forecast reaches 20 September. It does not change any status on this page.

What the statuses mean — each one is measured against the level we estimate this ship needs

  • ▼ Far below the line The measured level is under half of Waterlogged's reference line for this ship.
  • ▼ Below the line The measured level is below Waterlogged's reference line for this ship. It is not yet under half that level.
  • ✓ Above the line The measured level is at or above Waterlogged's reference line for this ship.
  • ⚓ Lock-controlled Locks hold the level on this stretch, so low water rarely stops a ship here. High water, maintenance, closures, restrictions on the locks and the cruise line's own decision can still affect a day.
  • — No line published The reading is real. Nobody publishes a level for this stretch to measure it against.
    — No reading yet We include this location on your daily schedule but there is no data available.
  • — No gauge on this stretch We watch no gauge on this stretch of river. There is no reading for the day and no line to measure one against. We are not telling you the water is fine, and we are not telling you anything holds it at a working level — those are things we have not established here.
  • ⚑ In port The ship is in port on this day. Our record holds no river transit for it, so there is no stretch of river to read. That is what we hold, not a claim about where the ship goes.
  • ⌂ Not sailing The ship does not sail on this day. Your itinerary spends it on land, so there is no river level to read and no low-water question to answer.

A gauge level is not the depth of the navigable channel, not the room under your ship's keel, and not your ship's draft. The rain forecast further down uses one more status of its own, temporarily unavailable, when that feed is missing or out of date.

The official forward outlook

Waterlogged does not provide its own independent future river depth forecast. We show today's gauge reading and compare them with our own reference lines and other historic data. Where Waterlogged has received licenses, it includes river forecasts and clearly identifies the sources where they are from. Waterlogged provides direct links to the gauge forecasts from national providers. BfG has given us permission to show their six week forecasts.

Your daily sailing schedule

Below are the ports you travel to and the depth of the water, as of today's date, and how much water is needed for your ship to sail. A graph shows the median or normal river depth.

Two words will help. A A riverside station that measures the water level in centimetres against a fixed zero point. is a riverside station that measures water level. Your ship's How deep a ship sits in the water. That depth sets how much water it needs underneath. is how deep it sits in the water. This affects how much water it needs below the hull.

Day1–2

Budapest

Wed 4 – Thu 5 November · Hungary

Far below the line

The measured level is under half of Waterlogged's reference line for this ship.

Scale 0–200 cm

48 cm below Waterlogged’s reference line

That is how far today's measured level sits below the line we estimate this ship needs. The level it is measured against is our own estimate, not a figure from the cruise line.

Water level now (7 September) 12 cm
Waterlogged’s Waterlogged's estimated level for this stretch, set from the measured record rather than from any ship's draught. In 35 years of readings, every day of the cruise season below it fell inside a disruption somebody documented at the time. It is a gauge level, not a depth under a ship, and no authority or cruise line publishes it. 60 cm
Normal for 4 November (median for 1991–2025) 164 cm

Falling — the river level fell 23 cm in the last three days.

On the record: For 1991–2025, we checked the eleven days around this date. Budapest’s lowest daily average was 70 cm, in 2015. Today’s reading is 12. That is below every one of the 385 readings in that window.

Water levels are measured at the Budapest gauge – Observation from Hungary's national water authority. Its forecasting service publishes the Budapest table. / General Directorate of Water Management, provided through The European River Information Services portal. It republishes official river data from member countries..
Waterlogged estimated level — our own level for this stretch, set from 35 years of records: every cruise-season day below it fell within a documented disruption. No authority publishes a figure here.

YOUR CRUISETODAY2500WLSNWLSN1 Aug1 Sep1 Oct1 Nov1 Dec
  • Current level
  • Past average for this date
  • WLSN — Waterlogged’s Waterlogged's estimated level for this stretch, set from the measured record rather than from any ship's draught. In 35 years of readings, every day of the cruise season below it fell inside a disruption somebody documented at the time. It is a gauge level, not a depth under a ship, and no authority or cruise line publishes it. (60 cm)
  • Measured level below that line
  • EuRIS official water-level prediction for Budapest, from originator Országos Vízügyi Főigazgatóság (OVF) · Waterlogged retrieved this prediction: 7 Sep 2026, 06:16 CEST · API/Service Hydrometeo v3 incorporated from EuRIS (eurisportal.eu) · Országos Vízügyi Főigazgatóság (OVF) / General Directorate of Water Management

Current and normal water levels. The solid blue line shows the current measured water level. The dashed grey line is the historic average of the water level from July 30th until December 2nd. The bold dashed line labelled WLSN is the water level the ship needs — Waterlogged's reference line for this ship: 60 cm. It is a gauge level, not a depth under the hull. Today's water sits 186 cm below the normal water level for this date. During your shaded cruise dates the normal water level is 165 cm on 4 November and 174 cm on 18 November. The water level at this location historically keeps falling over the next three months.

The official prediction for this gauge

EuRIS official water-level prediction for Budapest Waterlogged retrieved this prediction: 7 Sep 2026, 06:16 CEST
EuRIS official water-level prediction for Budapest

API/Service Hydrometeo v3 incorporated from EuRIS (eurisportal.eu). Waterlogged retrieved this prediction: 7 Sep 2026, 06:16 CEST.

Országos Vízügyi Főigazgatóság (OVF) / General Directorate of Water Management — EuRIS names Országos Vízügyi Főigazgatóság (OVF) as the source of this gauge series.

EuRIS publishes no issue time with this prediction, so the time above is when we retrieved it, not when EuRIS made it.

EuRIS's own predicted figures for Budapest, in cm at the gauge.
Time at the gaugeWater level (cm)
Mon 7 Sep, 13:0012
Mon 7 Sep, 19:009
Tue 8 Sep, 01:007
Tue 8 Sep, 07:005
Tue 8 Sep, 13:005
Tue 8 Sep, 19:004
Wed 9 Sep, 01:005
Wed 9 Sep, 07:005
Wed 9 Sep, 13:006
Wed 9 Sep, 19:006
Thu 10 Sep, 01:007
Thu 10 Sep, 07:007
Thu 10 Sep, 13:0010
Thu 10 Sep, 19:0013
Fri 11 Sep, 01:0019
Fri 11 Sep, 07:0025
Fri 11 Sep, 13:0033
Fri 11 Sep, 19:0040
Sat 12 Sep, 01:0047
Sat 12 Sep, 07:0053

20 figures, from Mon 7 Sep, 13:00 to Sat 12 Sep, 07:00, in local time at the gauge.

Every figure is EuRIS's own, in centimetres at the gauge. Nothing between two figures is filled in by us, and nothing is added beyond the last one.

EuRIS prediction run 7b297e1b-cdc9-4a51-854b-8feddee4e468.

The EuRIS portal, where this prediction is published (opens in a new tab)

Országos Vízügyi Főigazgatóság (OVF)’s own river information service (opens in a new tab)

Predicted water levels are from EuRIS. Waterlogged only reports historical and current data.

Every figure above is a water level at the gauge, in centimetres. It is not the depth of water under a ship and it is not a ship's draft.

Official forecast: Hungary's national water authority. Its forecasting service publishes the Budapest table. water-level forecast for Budapest

Published by Országos Vízjelző Szolgálat (The Hungarian national forecasting service. It publishes the Budapest forecast under OVF.), Hungary’s national forecasting service, under OVF.

The button below opens the official water-level forecast for this stretch — a simple table, about six days ahead. It shows the level in centimetres at the Budapest gauge, the same way this page shows it, so the numbers line up directly.

Don't be surprised by a negative number: the gauge's zero point sits above the riverbed, so readings below zero are real measurements, not errors.

As you read the forecast, compare each day's number with the Waterlogged's estimated level for this stretch, set from the measured record rather than from any ship's draught. In 35 years of readings, every day of the cruise season below it fell inside a disruption somebody documented at the time. It is a gauge level, not a depth under a ship, and no authority or cruise line publishes it. line — our estimated level for this stretch, set from 35 years of records: every cruise-season day below it fell within a documented disruption. That estimate is ours alone: no cruise line or authority publishes an official figure here.

https://www.hydroinfo.hu/tables/ENG/442027H.html

Day3

Bratislava

Friday 6 November · Slovakia

Far below the line

The measured level is under half of Waterlogged's reference line for this ship.

Scale 0–200 cm

48 cm below Waterlogged’s reference line

That is how far today's measured level sits below the line we estimate this ship needs. The level it is measured against is our own estimate, not a figure from the cruise line.

Water level now (7 September) 12 cm
Waterlogged’s Waterlogged's estimated level for this stretch, set from the measured record rather than from any ship's draught. In 35 years of readings, every day of the cruise season below it fell inside a disruption somebody documented at the time. It is a gauge level, not a depth under a ship, and no authority or cruise line publishes it. 60 cm
Normal for 6 November (median for 1991–2025) 166 cm

Falling — the river level fell 23 cm in the last three days.

On the record: For 1991–2025, we checked the eleven days around this date. Budapest’s lowest daily average was 64 cm, in 2015. Today’s reading is 12. That is below every one of the 385 readings in that window.

Water levels are measured at the Budapest gauge – Observation from Hungary's national water authority. Its forecasting service publishes the Budapest table. / General Directorate of Water Management, provided through The European River Information Services portal. It republishes official river data from member countries..
Waterlogged estimated level — our own level for this stretch, set from 35 years of records: every cruise-season day below it fell within a documented disruption. No authority publishes a figure here.

YOUR CRUISETODAY2500WLSNWLSN1 Aug1 Sep1 Oct1 Nov1 Dec
  • Current level
  • Past average for this date
  • WLSN — Waterlogged’s Waterlogged's estimated level for this stretch, set from the measured record rather than from any ship's draught. In 35 years of readings, every day of the cruise season below it fell inside a disruption somebody documented at the time. It is a gauge level, not a depth under a ship, and no authority or cruise line publishes it. (60 cm)
  • Measured level below that line
  • EuRIS official water-level prediction for Budapest, from originator Országos Vízügyi Főigazgatóság (OVF) · Waterlogged retrieved this prediction: 7 Sep 2026, 06:16 CEST · API/Service Hydrometeo v3 incorporated from EuRIS (eurisportal.eu) · Országos Vízügyi Főigazgatóság (OVF) / General Directorate of Water Management

Current and normal water levels. The solid blue line shows the current measured water level. The dashed grey line is the historic average of the water level from July 30th until December 2nd. The bold dashed line labelled WLSN is the water level the ship needs — Waterlogged's reference line for this ship: 60 cm. It is a gauge level, not a depth under the hull. Today's water sits 186 cm below the normal water level for this date. During your shaded cruise dates the normal water level is 165 cm on 4 November and 174 cm on 18 November. The water level at this location historically keeps falling over the next three months.

The official prediction for this gauge

EuRIS official water-level prediction for Budapest Waterlogged retrieved this prediction: 7 Sep 2026, 06:16 CEST
EuRIS official water-level prediction for Budapest

API/Service Hydrometeo v3 incorporated from EuRIS (eurisportal.eu). Waterlogged retrieved this prediction: 7 Sep 2026, 06:16 CEST.

Országos Vízügyi Főigazgatóság (OVF) / General Directorate of Water Management — EuRIS names Országos Vízügyi Főigazgatóság (OVF) as the source of this gauge series.

EuRIS publishes no issue time with this prediction, so the time above is when we retrieved it, not when EuRIS made it.

EuRIS's own predicted figures for Budapest, in cm at the gauge.
Time at the gaugeWater level (cm)
Mon 7 Sep, 13:0012
Mon 7 Sep, 19:009
Tue 8 Sep, 01:007
Tue 8 Sep, 07:005
Tue 8 Sep, 13:005
Tue 8 Sep, 19:004
Wed 9 Sep, 01:005
Wed 9 Sep, 07:005
Wed 9 Sep, 13:006
Wed 9 Sep, 19:006
Thu 10 Sep, 01:007
Thu 10 Sep, 07:007
Thu 10 Sep, 13:0010
Thu 10 Sep, 19:0013
Fri 11 Sep, 01:0019
Fri 11 Sep, 07:0025
Fri 11 Sep, 13:0033
Fri 11 Sep, 19:0040
Sat 12 Sep, 01:0047
Sat 12 Sep, 07:0053

20 figures, from Mon 7 Sep, 13:00 to Sat 12 Sep, 07:00, in local time at the gauge.

Every figure is EuRIS's own, in centimetres at the gauge. Nothing between two figures is filled in by us, and nothing is added beyond the last one.

EuRIS prediction run 7b297e1b-cdc9-4a51-854b-8feddee4e468.

The EuRIS portal, where this prediction is published (opens in a new tab)

Országos Vízügyi Főigazgatóság (OVF)’s own river information service (opens in a new tab)

Predicted water levels are from EuRIS. Waterlogged only reports historical and current data.

Every figure above is a water level at the gauge, in centimetres. It is not the depth of water under a ship and it is not a ship's draft.

Official forecast: Hungary's national water authority. Its forecasting service publishes the Budapest table. water-level forecast for Budapest

Published by Országos Vízjelző Szolgálat (The Hungarian national forecasting service. It publishes the Budapest forecast under OVF.), Hungary’s national forecasting service, under OVF.

The button below opens the official water-level forecast for this stretch — a simple table, about six days ahead. It shows the level in centimetres at the Budapest gauge, the same way this page shows it, so the numbers line up directly.

Don't be surprised by a negative number: the gauge's zero point sits above the riverbed, so readings below zero are real measurements, not errors.

As you read the forecast, compare each day's number with the Waterlogged's estimated level for this stretch, set from the measured record rather than from any ship's draught. In 35 years of readings, every day of the cruise season below it fell inside a disruption somebody documented at the time. It is a gauge level, not a depth under a ship, and no authority or cruise line publishes it. line — our estimated level for this stretch, set from 35 years of records: every cruise-season day below it fell within a documented disruption. That estimate is ours alone: no cruise line or authority publishes an official figure here.

https://www.hydroinfo.hu/tables/ENG/442027H.html

Day4

Vienna

Saturday 7 November · Austria

Far below the line

The measured level is under half of Waterlogged's reference line for this ship.

Scale 0–200 cm

48 cm below Waterlogged’s reference line

That is how far today's measured level sits below the line we estimate this ship needs. The level it is measured against is our own estimate, not a figure from the cruise line.

Water level now (7 September) 12 cm
Waterlogged’s Waterlogged's estimated level for this stretch, set from the measured record rather than from any ship's draught. In 35 years of readings, every day of the cruise season below it fell inside a disruption somebody documented at the time. It is a gauge level, not a depth under a ship, and no authority or cruise line publishes it. 60 cm
Normal for 7 November (median for 1991–2025) 168 cm

Falling — the river level fell 23 cm in the last three days.

On the record: For 1991–2025, we checked the eleven days around this date. Budapest’s lowest daily average was 64 cm, in 2015. Today’s reading is 12. That is below every one of the 385 readings in that window.

Water levels are measured at the Budapest gauge – Observation from Hungary's national water authority. Its forecasting service publishes the Budapest table. / General Directorate of Water Management, provided through The European River Information Services portal. It republishes official river data from member countries..
Waterlogged estimated level — our own level for this stretch, set from 35 years of records: every cruise-season day below it fell within a documented disruption. No authority publishes a figure here.

YOUR CRUISETODAY2500WLSNWLSN1 Aug1 Sep1 Oct1 Nov1 Dec
  • Current level
  • Past average for this date
  • WLSN — Waterlogged’s Waterlogged's estimated level for this stretch, set from the measured record rather than from any ship's draught. In 35 years of readings, every day of the cruise season below it fell inside a disruption somebody documented at the time. It is a gauge level, not a depth under a ship, and no authority or cruise line publishes it. (60 cm)
  • Measured level below that line
  • EuRIS official water-level prediction for Budapest, from originator Országos Vízügyi Főigazgatóság (OVF) · Waterlogged retrieved this prediction: 7 Sep 2026, 06:16 CEST · API/Service Hydrometeo v3 incorporated from EuRIS (eurisportal.eu) · Országos Vízügyi Főigazgatóság (OVF) / General Directorate of Water Management

Current and normal water levels. The solid blue line shows the current measured water level. The dashed grey line is the historic average of the water level from July 30th until December 2nd. The bold dashed line labelled WLSN is the water level the ship needs — Waterlogged's reference line for this ship: 60 cm. It is a gauge level, not a depth under the hull. Today's water sits 186 cm below the normal water level for this date. During your shaded cruise dates the normal water level is 165 cm on 4 November and 174 cm on 18 November. The water level at this location historically keeps falling over the next three months.

The official prediction for this gauge

EuRIS official water-level prediction for Budapest Waterlogged retrieved this prediction: 7 Sep 2026, 06:16 CEST
EuRIS official water-level prediction for Budapest

API/Service Hydrometeo v3 incorporated from EuRIS (eurisportal.eu). Waterlogged retrieved this prediction: 7 Sep 2026, 06:16 CEST.

Országos Vízügyi Főigazgatóság (OVF) / General Directorate of Water Management — EuRIS names Országos Vízügyi Főigazgatóság (OVF) as the source of this gauge series.

EuRIS publishes no issue time with this prediction, so the time above is when we retrieved it, not when EuRIS made it.

EuRIS's own predicted figures for Budapest, in cm at the gauge.
Time at the gaugeWater level (cm)
Mon 7 Sep, 13:0012
Mon 7 Sep, 19:009
Tue 8 Sep, 01:007
Tue 8 Sep, 07:005
Tue 8 Sep, 13:005
Tue 8 Sep, 19:004
Wed 9 Sep, 01:005
Wed 9 Sep, 07:005
Wed 9 Sep, 13:006
Wed 9 Sep, 19:006
Thu 10 Sep, 01:007
Thu 10 Sep, 07:007
Thu 10 Sep, 13:0010
Thu 10 Sep, 19:0013
Fri 11 Sep, 01:0019
Fri 11 Sep, 07:0025
Fri 11 Sep, 13:0033
Fri 11 Sep, 19:0040
Sat 12 Sep, 01:0047
Sat 12 Sep, 07:0053

20 figures, from Mon 7 Sep, 13:00 to Sat 12 Sep, 07:00, in local time at the gauge.

Every figure is EuRIS's own, in centimetres at the gauge. Nothing between two figures is filled in by us, and nothing is added beyond the last one.

EuRIS prediction run 7b297e1b-cdc9-4a51-854b-8feddee4e468.

The EuRIS portal, where this prediction is published (opens in a new tab)

Országos Vízügyi Főigazgatóság (OVF)’s own river information service (opens in a new tab)

Predicted water levels are from EuRIS. Waterlogged only reports historical and current data.

Every figure above is a water level at the gauge, in centimetres. It is not the depth of water under a ship and it is not a ship's draft.

Official forecast: Hungary's national water authority. Its forecasting service publishes the Budapest table. water-level forecast for Budapest

Published by Országos Vízjelző Szolgálat (The Hungarian national forecasting service. It publishes the Budapest forecast under OVF.), Hungary’s national forecasting service, under OVF.

The button below opens the official water-level forecast for this stretch — a simple table, about six days ahead. It shows the level in centimetres at the Budapest gauge, the same way this page shows it, so the numbers line up directly.

Don't be surprised by a negative number: the gauge's zero point sits above the riverbed, so readings below zero are real measurements, not errors.

As you read the forecast, compare each day's number with the Waterlogged's estimated level for this stretch, set from the measured record rather than from any ship's draught. In 35 years of readings, every day of the cruise season below it fell inside a disruption somebody documented at the time. It is a gauge level, not a depth under a ship, and no authority or cruise line publishes it. line — our estimated level for this stretch, set from 35 years of records: every cruise-season day below it fell within a documented disruption. That estimate is ours alone: no cruise line or authority publishes an official figure here.

https://www.hydroinfo.hu/tables/ENG/442027H.html

Day5

Dürnstein & Melk

Sunday 8 November · Austria

No line published

This is a real reading. There is nothing published to measure it against.

Scale 0–300 cm

111 cm
measured

Nobody publishes a target level for this stretch, so there is nothing to measure the reading against. We show the reading and the direction, and nothing more.

Water level now (7 September) 111 cm
Normal for 8 November (median for 2002–2026) 220 cm

Falling — the river level fell 15 cm in the last three days.

Water levels are measured at the Kienstock gauge – Observation from Austria's government-owned waterway company for the Danube., provided through The European River Information Services portal. It republishes official river data from member countries..
No official data — the reading is official; there is simply nothing published to compare it against.

YOUR CRUISETODAY30001 Aug1 Sep1 Oct1 Nov1 Dec
  • Current level
  • Past average for this date
  • Measured level below that line
  • EuRIS official water-level prediction for Kienstock, from originator viadonau · Waterlogged retrieved this prediction: 7 Sep 2026, 06:16 CEST · API/Service Hydrometeo v3 incorporated from EuRIS (eurisportal.eu) · Quelle: viadonau

Current and normal water levels. The solid blue line shows the current measured water level. The dashed grey line is the historic average of the water level from July 30th until December 2nd. Today's water sits 163 cm below the normal water level for this date. During your shaded cruise dates the normal water level is 220 cm on 4 November and 219 cm on 18 November. The water level at this location historically keeps falling over the next three months.

The official prediction for this gauge

EuRIS official water-level prediction for Kienstock Waterlogged retrieved this prediction: 7 Sep 2026, 06:16 CEST
EuRIS official water-level prediction for Kienstock

API/Service Hydrometeo v3 incorporated from EuRIS (eurisportal.eu). Waterlogged retrieved this prediction: 7 Sep 2026, 06:16 CEST.

Quelle: viadonau — EuRIS names viadonau as the source of this gauge series.

EuRIS publishes no issue time with this prediction, so the time above is when we retrieved it, not when EuRIS made it.

EuRIS's own predicted figures for Kienstock, in cm at the gauge.
Time at the gaugeWater level (cm)
Mon 7 Sep, 06:00109
Mon 7 Sep, 07:00109
Mon 7 Sep, 08:00109
Mon 7 Sep, 09:00109
Mon 7 Sep, 10:00109
Mon 7 Sep, 11:00109
Mon 7 Sep, 12:00109
Mon 7 Sep, 13:00109
Mon 7 Sep, 14:00109
Mon 7 Sep, 15:00109
Mon 7 Sep, 16:00109
Mon 7 Sep, 17:00109
Mon 7 Sep, 18:00109
Mon 7 Sep, 19:00109
Mon 7 Sep, 20:00109
Mon 7 Sep, 21:00110
Mon 7 Sep, 22:00111
Mon 7 Sep, 23:00111
Tue 8 Sep, 00:00112
Tue 8 Sep, 01:00112
Tue 8 Sep, 02:00113
Tue 8 Sep, 03:00113
Tue 8 Sep, 04:00113
Tue 8 Sep, 05:00114
Tue 8 Sep, 06:00114
Tue 8 Sep, 07:00114
Tue 8 Sep, 08:00114
Tue 8 Sep, 09:00115
Tue 8 Sep, 10:00115
Tue 8 Sep, 11:00115
Tue 8 Sep, 12:00115
Tue 8 Sep, 13:00116
Tue 8 Sep, 14:00116
Tue 8 Sep, 15:00116
Tue 8 Sep, 16:00116
Tue 8 Sep, 17:00116
Tue 8 Sep, 18:00116
Tue 8 Sep, 19:00116
Tue 8 Sep, 20:00116
Tue 8 Sep, 21:00116
Tue 8 Sep, 22:00116
Tue 8 Sep, 23:00115
Wed 9 Sep, 00:00115
Wed 9 Sep, 01:00114
Wed 9 Sep, 02:00114
Wed 9 Sep, 03:00114
Wed 9 Sep, 04:00113
Wed 9 Sep, 05:00113
Wed 9 Sep, 06:00113
Wed 9 Sep, 07:00112
Wed 9 Sep, 08:00112
Wed 9 Sep, 09:00112
Wed 9 Sep, 10:00112
Wed 9 Sep, 11:00112
Wed 9 Sep, 12:00112
Wed 9 Sep, 13:00112
Wed 9 Sep, 14:00112
Wed 9 Sep, 15:00113
Wed 9 Sep, 16:00113
Wed 9 Sep, 17:00113
Wed 9 Sep, 18:00113
Wed 9 Sep, 19:00113
Wed 9 Sep, 20:00113
Wed 9 Sep, 21:00113
Wed 9 Sep, 22:00113
Wed 9 Sep, 23:00113
Thu 10 Sep, 00:00113
Thu 10 Sep, 01:00113
Thu 10 Sep, 02:00112
Thu 10 Sep, 03:00112
Thu 10 Sep, 04:00112
Thu 10 Sep, 05:00112

72 figures, from Mon 7 Sep, 06:00 to Thu 10 Sep, 05:00, in local time at the gauge.

Every figure is EuRIS's own, in centimetres at the gauge. Nothing between two figures is filled in by us, and nothing is added beyond the last one.

EuRIS prediction run dca61795-2a7d-479a-8236-60f37e5f92dc.

The EuRIS portal, where this prediction is published (opens in a new tab)

viadonau’s own river information service (opens in a new tab)

Predicted water levels are from EuRIS. Waterlogged only reports historical and current data.

Every figure above is a water level at the gauge, in centimetres. It is not the depth of water under a ship and it is not a ship's draft.

Official forecast: Austria's Danube River Information Services site for water levels and navigation notices. station page — Kienstock, the Wachau reference gauge

Published by Austria's government-owned waterway company for the Danube., the Austrian waterway company, through DoRIS.

No German federal product covers the Austrian Danube. Austria's own navigation service publishes a Kienstock page in English. Its graph also shows a forward series.

On that graph the measured line is labelled The German word on the Austrian graph for the measured water level.. The forward one is labelled The German word on the Austrian graph for the forward-looking values.. The forward values run several days ahead. Austria notes that Kienstock forecasts are meant for low-water situations.

Then stop looking for a target level, because there is not one. Austria publishes a An Austrian low-water reference level. It gives no depth a ship can use. figure for Kienstock but no A depth an authority aims to keep available for ships along a stretch. figure to pair with it. A level without a depth cannot be turned into a target for your ship, and we will not invent one.

What you can read is the direction of change. You also know that locks keep this stretch full anyway.

https://www.doris.bmimi.gv.at/en/fairway-information/water-levels/kienstock

Day6

Passau

Monday 9 November · Germany

Below the line

The measured level is below the published low-water reference for this stretch.

Scale 0–500 cm

74 cm below Waterlogged’s reference line

That is how far today's measured level sits below the line we estimate this ship needs. The level it is measured against is our own estimate, not a figure from the cruise line.

Water level now (7 September) 216 cm
Published An authority's published low-level mark for a stretch. It is not a requirement for your ship. for this stretch 290 cm
Normal for 9 November (median for 2015–2026) 319 cm

Falling — the river level fell 5 cm in the last three days.

On the record: For 2015–2025, we checked the eleven days around this date. Pfelling’s lowest daily average was 246 cm, in 2018. Today’s reading is 216. That is below every one of the 121 readings in that window.

Water levels are measured at the Pfelling gauge – German federal waterways gauge service (PEGELONLINE).
Published low-water reference — the waterway authority's own figure for this stretch, not a requirement set by your cruise line.

YOUR CRUISETODAY3500WLSNWLSN1 Aug1 Sep1 Oct1 Nov1 Dec
  • Current level
  • Past average for this date
  • WLSN — Published An authority's published low-level mark for a stretch. It is not a requirement for your ship. for this stretch (290 cm)
  • Measured level below that line
  • BfG’s own 6-week outlook: one block for each whole published week · the tops of 4 weeks' ranges run past the top of this frame · BfG issued this forecast: 2026-09-03 · Bundesanstalt für Gewässerkunde (BfG)

Current and normal water levels. The solid blue line shows the current measured water level. The dashed grey line is the historic average of the water level from July 30th until December 2nd. The bold dashed line labelled WLSN is the water level the ship needs — Waterlogged's reference line for this ship: 290 cm. It is a gauge level, not a depth under the hull. Today's water sits 86 cm below the normal water level for this date. During your shaded cruise dates the normal water level is 312 cm on 4 November and 324 cm on 18 November. The water level at this location historically keeps rising over the next three months.

The official forecast for this gauge

BfG publishes no 14-day forecast for this gauge.

BfG's 6-week outlook for Pfelling BfG issued this forecast: 2026-09-03
BfG's 6-week outlook for Pfelling

Published by Bundesanstalt für Gewässerkunde (BfG). BfG issued this forecast: 2026-09-03.

Each line is one whole week, which is how BfG publishes this product. It gives no figure for any single day, and neither do we.

BfG's own weekly figures for Pfelling, in cm at the gauge.
WeekLowerMiddleUpper
3–9 September159177198
10–16 September126191301
17–23 September113227488
24–30 September97202452
1–7 October102203433
8–14 October106206428

The three columns are BfG's own 5th, 50th and 95th percentiles from their weather-driven runs, in centimetres at the gauge.

BfG's own file for Pfelling (opens in a new tab)

Forecast water levels are from BfG. Waterlogged only reports historical and current data.

Every figure above is a water level at the gauge, in centimetres. It is not the depth of water under a ship and it is not a ship's draft.

Official forecast: BfG six-week outlook for Pfelling — likely ranges for each week

Published by Bundesanstalt für Gewässerkunde (BfG).

Nothing published today can tell you the level on 9 November. Germany's federal hydrology institute. It publishes the official water-level forecasts and outlooks.'s daily forecast only reaches fourteen days ahead. Your call here is 63 days away. We have picked the product that does reach it, so you do not have to.

That product is BfG's six-week outlook. It is not a daily prediction. It shows likely ranges for each week. Each range is where that week's level is expected to fall, with the odds attached. The ranges come from many past-weather what-if runs, not from a single-line prediction.

The button below opens Pfelling's own sheet directly. Find the week beginning 9 November. Then read which band it sits in against the 290 cm line on this page.

From 26 October, this port will be fourteen days away. The daily forecast will then reach your date, and this block will switch itself over to it.

https://vorhersage.bafg.de/6-Wochen-Vorhersage/Donau-Pfelling_6Wochen_Wasserstand.pdf

Day7

Regensburg

Tuesday 10 November · Germany

Below the line

The measured level is below the published low-water reference for this stretch.

Scale 0–500 cm

74 cm below Waterlogged’s reference line

That is how far today's measured level sits below the line we estimate this ship needs. The level it is measured against is our own estimate, not a figure from the cruise line.

Water level now (7 September) 216 cm
Published An authority's published low-level mark for a stretch. It is not a requirement for your ship. for this stretch 290 cm
Normal for 10 November (median for 2015–2026) 320 cm

Falling — the river level fell 5 cm in the last three days.

On the record: For 2015–2025, we checked the eleven days around this date. Pfelling’s lowest daily average was 243 cm, in 2018. Today’s reading is 216. That is below every one of the 121 readings in that window.

Water levels are measured at the Pfelling gauge – German federal waterways gauge service (PEGELONLINE).
Published low-water reference — the waterway authority's own figure for this stretch, not a requirement set by your cruise line.

YOUR CRUISETODAY3500WLSNWLSN1 Aug1 Sep1 Oct1 Nov1 Dec
  • Current level
  • Past average for this date
  • WLSN — Published An authority's published low-level mark for a stretch. It is not a requirement for your ship. for this stretch (290 cm)
  • Measured level below that line
  • BfG’s own 6-week outlook: one block for each whole published week · the tops of 4 weeks' ranges run past the top of this frame · BfG issued this forecast: 2026-09-03 · Bundesanstalt für Gewässerkunde (BfG)

Current and normal water levels. The solid blue line shows the current measured water level. The dashed grey line is the historic average of the water level from July 30th until December 2nd. The bold dashed line labelled WLSN is the water level the ship needs — Waterlogged's reference line for this ship: 290 cm. It is a gauge level, not a depth under the hull. Today's water sits 86 cm below the normal water level for this date. During your shaded cruise dates the normal water level is 312 cm on 4 November and 324 cm on 18 November. The water level at this location historically keeps rising over the next three months.

The official forecast for this gauge

BfG publishes no 14-day forecast for this gauge.

BfG's 6-week outlook for Pfelling BfG issued this forecast: 2026-09-03
BfG's 6-week outlook for Pfelling

Published by Bundesanstalt für Gewässerkunde (BfG). BfG issued this forecast: 2026-09-03.

Each line is one whole week, which is how BfG publishes this product. It gives no figure for any single day, and neither do we.

BfG's own weekly figures for Pfelling, in cm at the gauge.
WeekLowerMiddleUpper
3–9 September159177198
10–16 September126191301
17–23 September113227488
24–30 September97202452
1–7 October102203433
8–14 October106206428

The three columns are BfG's own 5th, 50th and 95th percentiles from their weather-driven runs, in centimetres at the gauge.

BfG's own file for Pfelling (opens in a new tab)

Forecast water levels are from BfG. Waterlogged only reports historical and current data.

Every figure above is a water level at the gauge, in centimetres. It is not the depth of water under a ship and it is not a ship's draft.

Official forecast: BfG six-week outlook for Pfelling — likely ranges for each week

Published by Bundesanstalt für Gewässerkunde (BfG).

Nothing published today can tell you the level on 10 November. Germany's federal hydrology institute. It publishes the official water-level forecasts and outlooks.'s daily forecast only reaches fourteen days ahead. Your call here is 64 days away. We have picked the product that does reach it, so you do not have to.

That product is BfG's six-week outlook. It is not a daily prediction. It shows likely ranges for each week. Each range is where that week's level is expected to fall, with the odds attached. The ranges come from many past-weather what-if runs, not from a single-line prediction.

The button below opens Pfelling's own sheet directly. Find the week beginning 9 November. Then read which band it sits in against the 290 cm line on this page.

From 27 October, this port will be fourteen days away. The daily forecast will then reach your date, and this block will switch itself over to it.

https://vorhersage.bafg.de/6-Wochen-Vorhersage/Donau-Pfelling_6Wochen_Wasserstand.pdf

Day8

Nuremberg

Wednesday 11 November · Germany

Lock-controlled

Locks hold this water at a working level, so low water is far less likely to affect this stretch. Other things still can.

Locks hold the level here, so low water rarely stops a ship.

Full details

The water here is held at a working level by the Main–Danube Canal chain of locks. Rainfall does not set it.

What sets the levelthe Main–Danube Canal chain of locks
Kind of waterthe canal's highest level, filled by pumps
Level readingno level reading is published for this stretch
Sensitive to low waterfar less than a free-flowing stretch

Low water does not close this stretch of river; a lock failure or a flood would. High water, maintenance, a closure or a restriction on the locks can still affect a day here, and so can the cruise line's own decision.

Official forecast: Germany's official waterway service for forecasts, restrictions and notices to skippers. — German federal waterway notices

Published by Germany's federal waterways and shipping administration. It publishes notices through ELWIS. / ELWIS.

No water-level product applies to this day. This water is held at a working level by locks, so there is no gauge reading that would change your day.

What can affect a day like this is a lock outage or maintenance closure. That is announced through ELWIS, the official notices-to-skippers channel — in the authority's own words, before anyone else repeats them.

For this day, check the official notices rather than the levels.

https://www.elwis.de/

Day9

Bamberg

Thursday 12 November · Germany

No line published

This is a real reading. There is nothing published to measure it against.

Scale 0–250 cm

143 cm
measured

Nobody publishes a target level for this stretch, so there is nothing to measure the reading against. We show the reading and the direction, and nothing more.

Water level now (7 September) 143 cm

Rising — the river level rose 3 cm in the last three days.

Water levels are measured at the Würzburg gauge – German federal waterways gauge service (PEGELONLINE).
No official data — the reading is official; there is simply nothing published to compare it against.

We do not draw a measured history graph for this gauge. The reading above is current and official; the archive the graph would be drawn from is not ours to republish.

Day10

Würzburg

Friday 13 November · Germany

No line published

This is a real reading. There is nothing published to measure it against.

Scale 0–250 cm

143 cm
measured

Nobody publishes a target level for this stretch, so there is nothing to measure the reading against. We show the reading and the direction, and nothing more.

Water level now (7 September) 143 cm

Rising — the river level rose 3 cm in the last three days.

Water levels are measured at the Würzburg gauge – German federal waterways gauge service (PEGELONLINE).
No official data — the reading is official; there is simply nothing published to compare it against.

We do not draw a measured history graph for this gauge. The reading above is current and official; the archive the graph would be drawn from is not ours to republish.

Day11

Wertheim & Miltenberg

Saturday 14 November · Germany

No line published

This is a real reading. There is nothing published to measure it against.

Scale 0–250 cm

143 cm
measured

Nobody publishes a target level for this stretch, so there is nothing to measure the reading against. We show the reading and the direction, and nothing more.

Water level now (7 September) 143 cm

Rising — the river level rose 3 cm in the last three days.

Water levels are measured at the Würzburg gauge – German federal waterways gauge service (PEGELONLINE).
No official data — the reading is official; there is simply nothing published to compare it against.

We do not draw a measured history graph for this gauge. The reading above is current and official; the archive the graph would be drawn from is not ours to republish.

Day12

Rüdesheim & the Rhine gorge

Sunday 15 November · Germany

Far below the line

The measured level is under half of Waterlogged's reference line for this ship.

Scale 0–200 cm

60 cm below Waterlogged’s reference line

That is how far today's measured level sits below the line we estimate this ship needs. The level it is measured against is our own estimate, not a figure from the cruise line.

Water level now (7 September) 33 cm
How we calculate ship needWaterlogged estimates that a river needs to be 2.05m in depth to be navigable by river cruises. A river cruise ship has a draft of approximately 1.60m and we add an additional 0.45m above this. This number is not from official cruise line reports. Ships with smaller drafts or special permission may be able to sail in less water. The figure on the page beside this note is a gauge level, and a gauge level is the height of the water at one measuring station, read from that station's own zero. It is not the depth of the navigable channel, it is not the room left under a ship's keel, and it is not a ship's draft. Our line is a level we compare today's reading with. It is not a depth anybody has measured under your ship. 93 cm
Normal for 15 November (median for 2015–2026) 145 cm

Falling — the river level fell 10 cm in the last three days.

On the record: For 2015–2025, we checked the eleven days around this date. Kaub’s lowest daily average was 32 cm, in 2018. Today’s reading is 33.

Water levels are measured at the Kaub gauge – German federal waterways gauge service (PEGELONLINE).

YOUR CRUISETODAY2000WLSNWLSN1 Aug1 Sep1 Oct1 Nov1 Dec
  • Current level
  • Past average for this date
  • WLSN — How we calculate ship needWaterlogged estimates that a river needs to be 2.05m in depth to be navigable by river cruises. A river cruise ship has a draft of approximately 1.60m and we add an additional 0.45m above this. This number is not from official cruise line reports. Ships with smaller drafts or special permission may be able to sail in less water. The figure on the page beside this note is a gauge level, and a gauge level is the height of the water at one measuring station, read from that station's own zero. It is not the depth of the navigable channel, it is not the room left under a ship's keel, and it is not a ship's draft. Our line is a level we compare today's reading with. It is not a depth anybody has measured under your ship. (93 cm)
  • Measured level below that line
  • BfG’s own 14-day forecast: their low-to-high range and middle line · BfG issued this forecast: 2026-09-06 GMT+1 · Bundesanstalt für Gewässerkunde (BfG)
  • BfG’s own 6-week outlook: one block for each whole published week · 3 of 4 published weeks reach beyond the scale of this frame and are not drawn · BfG issued this forecast: 2026-09-03 · Bundesanstalt für Gewässerkunde (BfG)

Current and normal water levels. The solid blue line shows the current measured water level. The dashed grey line is the historic average of the water level from July 30th until December 2nd. The bold dashed line labelled WLSN is the water level the ship needs — Waterlogged's reference line for this ship: 93 cm. It is a gauge level, not a depth under the hull. Today's water sits 112 cm below the normal water level for this date. During your shaded cruise dates the normal water level is 131 cm on 4 November and 146 cm on 18 November. The water level at this location historically keeps rising over the next three months.

The official forecast for this gauge

BfG's 14-day water-level forecast for Kaub BfG issued this forecast: 2026-09-06 GMT+1
BfG's 14-day water-level forecast for Kaub

Published by Bundesanstalt für Gewässerkunde (BfG). BfG issued this forecast: 2026-09-06 GMT+1.

7020Mon 7 SepSat 19 Sep
BfG's own daily figures for Kaub, in cm at the gauge.
DayLowerMiddleUpper
Mon 7 Sep303235
Tue 8 Sep293337
Wed 9 Sep273238
Thu 10 Sep253239
Fri 11 Sep273645
Sat 12 Sep344659
Sun 13 Sep375167
Mon 14 Sep375269
Tue 15 Sep365068
Wed 16 Sep324764
Thu 17 Sep274260
Fri 18 Sep223858
Sat 19 Sep203759

BfG publishes a low and a high figure for every day, not one certain number. Read the whole range.

The three columns are BfG's own 10th, 50th and 90th percentiles, in centimetres at the gauge. Nothing between them is filled in by us.

BfG does not publish values above 640 centimetres. Where a figure would be higher, their file says so and this table reads "above 640".

BfG's own file for Kaub (opens in a new tab)

BfG's 6-week outlook for Kaub BfG issued this forecast: 2026-09-03
BfG's 6-week outlook for Kaub

Published by Bundesanstalt für Gewässerkunde (BfG). BfG issued this forecast: 2026-09-03.

Each line is one whole week, which is how BfG publishes this product. It gives no figure for any single day, and neither do we.

BfG's own weekly figures for Kaub, in cm at the gauge.
WeekLowerMiddleUpper
3–9 September303744
10–16 September72955
17–23 September-651135
24–30 September-957159
1–7 October-367173
8–14 October674170

The three columns are BfG's own 5th, 50th and 95th percentiles from their weather-driven runs, in centimetres at the gauge.

BfG's own file for Kaub (opens in a new tab)

Forecast water levels are from BfG. Waterlogged only reports historical and current data.

Every figure above is a water level at the gauge, in centimetres. It is not the depth of water under a ship and it is not a ship's draft.

Official forecast: BfG six-week outlook for Kaub — likely ranges for each week

Published by Bundesanstalt für Gewässerkunde (BfG).

Nothing published today can tell you the level on 15 November. Germany's federal hydrology institute. It publishes the official water-level forecasts and outlooks.'s daily forecast only reaches fourteen days ahead. Your call here is 69 days away. We have picked the product that does reach it, so you do not have to.

That product is BfG's six-week outlook. It is not a daily prediction. It shows likely ranges for each week. Each range is where that week's level is expected to fall, with the odds attached. The ranges come from many past-weather what-if runs, not from a single-line prediction.

The button below opens Kaub's own sheet directly. Find the week beginning 9 November. Then read which band it sits in against the How we calculate ship needWaterlogged estimates that a river needs to be 2.05m in depth to be navigable by river cruises. A river cruise ship has a draft of approximately 1.60m and we add an additional 0.45m above this. This number is not from official cruise line reports. Ships with smaller drafts or special permission may be able to sail in less water. The figure on the page beside this note is a gauge level, and a gauge level is the height of the water at one measuring station, read from that station's own zero. It is not the depth of the navigable channel, it is not the room left under a ship's keel, and it is not a ship's draft. Our line is a level we compare today's reading with. It is not a depth anybody has measured under your ship. line on this page.

From 1 November, this port will be fourteen days away. The daily forecast will then reach your date, and this block will switch itself over to it.

https://vorhersage.bafg.de/6-Wochen-Vorhersage/Rhein-Kaub_6Wochen_Wasserstand.pdf

Day13

Cologne

Monday 16 November · Germany

Below the line

The measured level is below the published low-water reference for this stretch.

Scale 0–300 cm

63 cm below Waterlogged’s reference line

That is how far today's measured level sits below the line we estimate this ship needs. The level it is measured against is our own estimate, not a figure from the cruise line.

Water level now (7 September) 76 cm
Published An authority's published low-level mark for a stretch. It is not a requirement for your ship. for this stretch 139 cm
Normal for 16 November (median for 2015–2026) 218 cm

Falling — the river level fell 19 cm in the last three days.

On the record: For 2015–2025, we checked the eleven days around this date. Koeln’s lowest daily average was 79 cm, in 2018. Today’s reading is 76. That is below every one of the 121 readings in that window.

Water levels are measured at the Köln gauge – German federal waterways gauge service (PEGELONLINE).
Published low-water reference — the waterway authority's own figure for this stretch, not a requirement set by your cruise line.

YOUR CRUISETODAY3000WLSNWLSN1 Aug1 Sep1 Oct1 Nov1 Dec
  • Current level
  • Past average for this date
  • WLSN — Published An authority's published low-level mark for a stretch. It is not a requirement for your ship. for this stretch (139 cm)
  • Measured level below that line
  • BfG’s own 14-day forecast: their low-to-high range and middle line · BfG issued this forecast: 2026-09-06 GMT+1 · Bundesanstalt für Gewässerkunde (BfG)
  • BfG’s own 6-week outlook: one block for each whole published week · BfG issued this forecast: 2026-09-03 · Bundesanstalt für Gewässerkunde (BfG)

Current and normal water levels. The solid blue line shows the current measured water level. The dashed grey line is the historic average of the water level from July 30th until December 2nd. The bold dashed line labelled WLSN is the water level the ship needs — Waterlogged's reference line for this ship: 139 cm. It is a gauge level, not a depth under the hull. Today's water sits 127 cm below the normal water level for this date. During your shaded cruise dates the normal water level is 196 cm on 4 November and 223 cm on 18 November. The water level at this location historically keeps rising over the next three months.

The official forecast for this gauge

BfG's 14-day water-level forecast for Köln BfG issued this forecast: 2026-09-06 GMT+1
BfG's 14-day water-level forecast for Köln

Published by Bundesanstalt für Gewässerkunde (BfG). BfG issued this forecast: 2026-09-06 GMT+1.

12060Mon 7 SepSat 19 Sep
BfG's own daily figures for Köln, in cm at the gauge.
DayLowerMiddleUpper
Mon 7 Sep757880
Tue 8 Sep757982
Wed 9 Sep768085
Thu 10 Sep748188
Fri 11 Sep738291
Sat 12 Sep748393
Sun 13 Sep7992105
Mon 14 Sep8498115
Tue 15 Sep8499116
Wed 16 Sep8296113
Thu 17 Sep7893110
Fri 18 Sep7490109
Sat 19 Sep6987110

BfG publishes a low and a high figure for every day, not one certain number. Read the whole range.

The three columns are BfG's own 10th, 50th and 90th percentiles, in centimetres at the gauge. Nothing between them is filled in by us.

BfG does not publish values above 830 centimetres. Where a figure would be higher, their file says so and this table reads "above 830".

BfG's own file for Köln (opens in a new tab)

BfG's 6-week outlook for Köln BfG issued this forecast: 2026-09-03
BfG's 6-week outlook for Köln

Published by Bundesanstalt für Gewässerkunde (BfG). BfG issued this forecast: 2026-09-03.

Each line is one whole week, which is how BfG publishes this product. It gives no figure for any single day, and neither do we.

BfG's own weekly figures for Köln, in cm at the gauge.
WeekLowerMiddleUpper
3–9 September89100111
10–16 September5073102
17–23 September5096179
24–30 September50103211
1–7 October50115235
8–14 October50124252

The three columns are BfG's own 5th, 50th and 95th percentiles from their weather-driven runs, in centimetres at the gauge.

BfG's own file for Köln (opens in a new tab)

Forecast water levels are from BfG. Waterlogged only reports historical and current data.

Every figure above is a water level at the gauge, in centimetres. It is not the depth of water under a ship and it is not a ship's draft.

Official forecast: BfG six-week outlook for Köln — likely ranges for each week

Published by Bundesanstalt für Gewässerkunde (BfG).

Nothing published today can tell you the level on 16 November. Germany's federal hydrology institute. It publishes the official water-level forecasts and outlooks.'s daily forecast only reaches fourteen days ahead. Your call here is 70 days away. We have picked the product that does reach it, so you do not have to.

That product is BfG's six-week outlook. It is not a daily prediction. It shows likely ranges for each week. Each range is where that week's level is expected to fall, with the odds attached. The ranges come from many past-weather what-if runs, not from a single-line prediction.

The button below opens Köln's own sheet directly. Find the week beginning 16 November. Then read which band it sits in against the 139 cm line on this page.

From 2 November, this port will be fourteen days away. The daily forecast will then reach your date, and this block will switch itself over to it.

https://vorhersage.bafg.de/6-Wochen-Vorhersage/Rhein-Koeln_6Wochen_Wasserstand.pdf

Day14

Kinderdijk

Tuesday 17 November · Netherlands

Below the line

The measured level is below the published low-water reference for this stretch.

Scale 0–300 cm

63 cm below Waterlogged’s reference line

That is how far today's measured level sits below the line we estimate this ship needs. The level it is measured against is our own estimate, not a figure from the cruise line.

Water level now (7 September) 76 cm
Published An authority's published low-level mark for a stretch. It is not a requirement for your ship. for this stretch 139 cm
Normal for 17 November (median for 2015–2026) 221 cm

Falling — the river level fell 19 cm in the last three days.

On the record: For 2015–2025, we checked the eleven days around this date. Koeln’s lowest daily average was 79 cm, in 2018. Today’s reading is 76. That is below every one of the 121 readings in that window.

Water levels are measured at the Köln gauge – German federal waterways gauge service (PEGELONLINE).
Published low-water reference — the waterway authority's own figure for this stretch, not a requirement set by your cruise line.

YOUR CRUISETODAY3000WLSNWLSN1 Aug1 Sep1 Oct1 Nov1 Dec
  • Current level
  • Past average for this date
  • WLSN — Published An authority's published low-level mark for a stretch. It is not a requirement for your ship. for this stretch (139 cm)
  • Measured level below that line
  • BfG’s own 14-day forecast: their low-to-high range and middle line · BfG issued this forecast: 2026-09-06 GMT+1 · Bundesanstalt für Gewässerkunde (BfG)
  • BfG’s own 6-week outlook: one block for each whole published week · BfG issued this forecast: 2026-09-03 · Bundesanstalt für Gewässerkunde (BfG)

Current and normal water levels. The solid blue line shows the current measured water level. The dashed grey line is the historic average of the water level from July 30th until December 2nd. The bold dashed line labelled WLSN is the water level the ship needs — Waterlogged's reference line for this ship: 139 cm. It is a gauge level, not a depth under the hull. Today's water sits 127 cm below the normal water level for this date. During your shaded cruise dates the normal water level is 196 cm on 4 November and 223 cm on 18 November. The water level at this location historically keeps rising over the next three months.

The official forecast for this gauge

BfG's 14-day water-level forecast for Köln BfG issued this forecast: 2026-09-06 GMT+1
BfG's 14-day water-level forecast for Köln

Published by Bundesanstalt für Gewässerkunde (BfG). BfG issued this forecast: 2026-09-06 GMT+1.

12060Mon 7 SepSat 19 Sep
BfG's own daily figures for Köln, in cm at the gauge.
DayLowerMiddleUpper
Mon 7 Sep757880
Tue 8 Sep757982
Wed 9 Sep768085
Thu 10 Sep748188
Fri 11 Sep738291
Sat 12 Sep748393
Sun 13 Sep7992105
Mon 14 Sep8498115
Tue 15 Sep8499116
Wed 16 Sep8296113
Thu 17 Sep7893110
Fri 18 Sep7490109
Sat 19 Sep6987110

BfG publishes a low and a high figure for every day, not one certain number. Read the whole range.

The three columns are BfG's own 10th, 50th and 90th percentiles, in centimetres at the gauge. Nothing between them is filled in by us.

BfG does not publish values above 830 centimetres. Where a figure would be higher, their file says so and this table reads "above 830".

BfG's own file for Köln (opens in a new tab)

BfG's 6-week outlook for Köln BfG issued this forecast: 2026-09-03
BfG's 6-week outlook for Köln

Published by Bundesanstalt für Gewässerkunde (BfG). BfG issued this forecast: 2026-09-03.

Each line is one whole week, which is how BfG publishes this product. It gives no figure for any single day, and neither do we.

BfG's own weekly figures for Köln, in cm at the gauge.
WeekLowerMiddleUpper
3–9 September89100111
10–16 September5073102
17–23 September5096179
24–30 September50103211
1–7 October50115235
8–14 October50124252

The three columns are BfG's own 5th, 50th and 95th percentiles from their weather-driven runs, in centimetres at the gauge.

BfG's own file for Köln (opens in a new tab)

Forecast water levels are from BfG. Waterlogged only reports historical and current data.

Every figure above is a water level at the gauge, in centimetres. It is not the depth of water under a ship and it is not a ship's draft.

Official forecast: BfG six-week outlook for Köln — likely ranges for each week

Published by Bundesanstalt für Gewässerkunde (BfG).

Nothing published today can tell you the level on 17 November. Germany's federal hydrology institute. It publishes the official water-level forecasts and outlooks.'s daily forecast only reaches fourteen days ahead. Your call here is 71 days away. We have picked the product that does reach it, so you do not have to.

That product is BfG's six-week outlook. It is not a daily prediction. It shows likely ranges for each week. Each range is where that week's level is expected to fall, with the odds attached. The ranges come from many past-weather what-if runs, not from a single-line prediction.

The button below opens Köln's own sheet directly. Find the week beginning 16 November. Then read which band it sits in against the 139 cm line on this page.

From 3 November, this port will be fourteen days away. The daily forecast will then reach your date, and this block will switch itself over to it.

https://vorhersage.bafg.de/6-Wochen-Vorhersage/Rhein-Koeln_6Wochen_Wasserstand.pdf

Day15

Amsterdam

Wednesday 18 November · Netherlands

Lock-controlled

Locks hold this water at a working level, so low water is far less likely to affect this stretch. Other things still can.

Locks hold the level here, so low water rarely stops a ship.

Full details

The water here is held at a working level by the Dutch sea locks and control by tides. Rainfall does not set it.

What sets the levelthe Dutch sea locks and control by tides
Kind of watercontrolled by locks, supplied by tides
Level readingno level reading is published for this stretch
Sensitive to low waterfar less than a free-flowing stretch

Low water does not close this stretch of river; a lock failure or a flood would. High water, maintenance, a closure or a restriction on the locks can still affect a day here, and so can the cruise line's own decision.

Official forecast: The Dutch authority's website for waterway conditions and notices. — Dutch waterway information

Published by The Dutch government body for major roads, waterways and water systems..

This is not a river-level question. Locks and tides control these waterways.

The Dutch authority publishes waterway status and notices at Vaarweginformatie if you want to look. Nothing on this day turns on a low-water reading.

https://www.vaarweginformatie.nl/

Rain on your route — calculated daily

Rain forecast by Open-Meteo (commercial licence) · fetched 7 September 2026 at 05:16 UTC · covering 14 days, 7 September to 20 September.

Rain can raise the water level of a river but there is no fixed rule on how much it does. We only report how much the quantity of rainfall has changed the water level before under similar conditions. It is context, not a prediction of a river level.

Licensed rain forecast + what the water level has actually done before

The detailed weather forecast for your route

All rain forecasts use the same scale, 0–12 mm of rain a day, so you can compare them directly. Each column is one day, with its date at the top, then the sky for that day and the daily high in °C.

Rain forecast by Open-Meteo (commercial licence) · fetched 7 September 2026 at 05:16 UTC · covering 14 days, 7 September to 20 September.

Budapest Danube · Hungary

Far below the line

date, sky and daily high °C

7 September20 September

14 days · mm/day upstream of this gauge

≈ 6 mm expected upstream over 14 days

Rain forecast by Open-Meteo (commercial licence) · fetched 7 September 2026 at 05:16 UTC · covering 14 days, 7 September to 20 September.

In our 25 years of Budapest records, the water level has never risen more than a few centimetres after rain this light. Today’s level sits 152 cm below normal for the date. Rain like this does not change that.

This is our reading of the rain forecast, based on what rain has actually done to this river in past years. It is not an official river forecast.

Kienstock Danube · Austria

No line published

date, sky and daily high °C

7 September20 September

14 days · mm/day upstream of this gauge

≈ 29 mm expected upstream over 14 days

Rain forecast by Open-Meteo (commercial licence) · fetched 7 September 2026 at 05:16 UTC · covering 14 days, 7 September to 20 September.

At Kienstock the water sits behind A dam built across the river that holds the water above it at a set level. Where one stands, the depth is set by the dam, not by rain., so the dams set this level, not the rain. Rain of this size has changed the water level here in past years without changing anything about getting through.

This is our reading of the rain forecast, based on what rain has actually done to this river in past years. It is not an official river forecast.

Pfelling Danube · Germany

Below the line

date, sky and daily high °C

7 September20 September

14 days · mm/day upstream of this gauge

≈ 20 mm expected upstream over 14 days

Rain forecast by Open-Meteo (commercial licence) · fetched 7 September 2026 at 05:16 UTC · covering 14 days, 7 September to 20 September.

Rain drains away faster here than on the Rhine. At Pfelling the extra height from rain is usually half gone in about 16 days. At Kaub it lasts much longer — about 55. In past years this much rain, landing on a river already this low, held the level steady for a week or so. It did not close a gap of 74 cm.

This is our reading of the rain forecast, based on what rain has actually done to this river in past years. It is not an official river forecast.

Kaub Rhine · Germany

Far below the line

date, sky and daily high °C

7 September20 September

14 days · mm/day upstream of this gauge

≈ 16 mm expected upstream over 14 days

Rain forecast by Open-Meteo (commercial licence) · fetched 7 September 2026 at 05:16 UTC · covering 14 days, 7 September to 20 September.

In past years, rain this light held the water level steady for a week or two. It never brought the level up to 93.

This is our reading of the rain forecast, based on what rain has actually done to this river in past years. It is not an official river forecast.

Cologne Rhine · Germany

Below the line

date, sky and daily high °C

7 September20 September

14 days · mm/day upstream of this gauge

≈ 19 mm expected upstream over 14 days

Rain forecast by Open-Meteo (commercial licence) · fetched 7 September 2026 at 05:16 UTC · covering 14 days, 7 September to 20 September.

In past years, rain this light held the water level steady for a week or two. It never brought the level up to 139.

This is our reading of the rain forecast, based on what rain has actually done to this river in past years. It is not an official river forecast.

The rest of your route

Locks and A dam built across the river that holds the water above it at a set level. Where one stands, the depth is set by the dam, not by rain. hold the water level at a set height at Nuremberg and Amsterdam. So rain is not a river question at these ports. That is why none of these has a rain forecast. What is left is the weather for your day in town.

BratislavaVienna–Budapest Danube · Slovakia

date, sky and daily high °C

ViennaVienna–Budapest Danube · Austria

date, sky and daily high °C

Dürnstein & MelkAustrian Danube · Austria

date, sky and daily high °C

PassauStraubing–Vilshofen free stretch · Germany

date, sky and daily high °C

RegensburgStraubing–Vilshofen free stretch · Germany

date, sky and daily high °C

NurembergMain-Danube Canal · Germany

date, sky and daily high °C

BambergMain · Germany

date, sky and daily high °C

WürzburgMain · Germany

date, sky and daily high °C

Rüdesheim & the Rhine gorgeMiddle Rhine gorge · Germany

date, sky and daily high °C

AmsterdamDutch & Belgian waterways · Netherlands

date, sky and daily high °C

the same days · 7 September to 20 September · daily highs in °C

Rain forecast by Open-Meteo (commercial licence) · fetched 7 September 2026 at 05:16 UTC · covering 14 days, 7 September to 20 September.

How rain reaches the river — the rules we use the stages, the half-lives and the 2003 warning behind every line above

How rain becomes a water level

A river responds to rain in stages. A nearby shower may matter less than rain far upstream.

  • Rain fallsWhere the rain lands matters as much as the total.
  • Ground takes a shareDry ground can hold most of the first rain.
  • Tributaries bring it downWater arrives from different Side rivers and streams that feed the main river at different times. at different times.
  • The gauge gets a pulseA A short rise that has travelled downstream after rain further up the river. can briefly raise the level at the gauge.
  • Baseflow settles itThe slow supply of stored water that keeps a river running between periods of rain. is the slower supply of stored water. It decides where the level settles.

Why winter rain often does more

Winter ground is usually wetter and cooler. Plants use less water then. Less water also evaporates. More of the same rain can reach the river. In high summer, dry soil and growing plants take more water first. Less water then flows over the land into the river.

What "half-life" means here

The How long half of an unusual water-level difference has historically taken to fade. is based on past records. It is the time for half the extra height above the usual seasonal level to fade. It describes persistence, not how many centimetres a storm will add.

Estimated half-life of unusual levels at eligible route gauges
GaugeWinter-runoff blockSummer-recession block
Pfelling 17.3 daysdrift_params.json → PFELLING.blocks[winter_runoff].half_life_days 15.6 daysdrift_params.json → PFELLING.blocks[summer_recession].half_life_days
Hofkirchen 20.2 daysdrift_params.json → HOFKIRCHEN.blocks[winter_runoff].half_life_days 18.7 daysdrift_params.json → HOFKIRCHEN.blocks[summer_recession].half_life_days
Kaub 32.7 daysdrift_params.json → KAUB.blocks[winter_runoff].half_life_days 55.3 daysdrift_params.json → KAUB.blocks[summer_recession].half_life_days
Cologne 31.1 daysdrift_params.json → KOELN.blocks[winter_runoff].half_life_days 58.0 daysdrift_params.json → KOELN.blocks[summer_recession].half_life_days

Read the difference carefully. A longer summer value at the Rhine gauges does not mean summer rain adds more water. It means an unusual measured level faded more slowly in that set of calendar dates. The block names come from the parameter file; they are not weather seasons or a rain-to-level formula.

Rules of thumb

Use these to read a wet outlook — not to predict a sailing-day level.

  1. After a long dry period, the first roughly 10 mm may mainly soak the soil. Do not expect much change at the gauge before that.

    Source: waterlogged/rain_explainer.py → transfer_function.soil_absorption_first_mm.value_mm = 10; explicitly qualitative, not a fitted gauge coefficient.

  2. Look downstream after about 1 day Basel–Maxau, 1–1½ days Maxau–Kaub and ½–1 day Kaub–Cologne; Austrian Danube events spanned 60–118 hours, so there is no honest fixed Danube clock.

    Sources: docs/council_alignment/lens_hydrology.md gives Rhine flood-wave and falling-water travel times. docs/climate_evidence_wide_signals.md gives the "Travel time & Alpine share" event range and the no-fixed-lag rule.

  3. A routed rain pulse can briefly raise a gauge. Baseflow is the slower supply of stored water. It decides where the level settles.

    Source: waterlogged/rain_explainer.py gives the wording about a rain pulse in each season. The figures in the table above are the fitted half_life_days from drift_params.json.

That is the calculation you have just read. The licence turns this panel from a list of links into a daily reading. It still stops where the evidence stops.

Rainfall forecast is provided by a commercial forecast service. Waterlogged reports on how an amount of rainfall has historically affected the water level. This historical information is provided for illustrative reasons and should not be used for any prediction.

Rain is context, not a prediction of a river level. Nothing on this page turns millimetres of rain into centimetres at a gauge, and no status anywhere on this page moves because rain is forecast.

The official services we link to forecast the water level at a gauge. That is not a promised depth of water under your ship, and none of them publishes one.

Weather data comes from a licensed provider. Weather data by Open-Meteo (commercial licence)

How to read every number on this page

The numbers on this page stay free.

You are not paying for anything. The daily update — which includes a river companion on your sailing — is free to your inbox.

If you want us to read this sailing every morning and send it to your inbox, the Daily River Log Watch is free for your sailing. Nothing to pay, nothing renews. The last morning is the morning after you leave the ship.

Get the mornings — free

What you will receive

The Daily River Log Watch — free for this sailing

Every morning until the morning after you leave the ship: the reading on the gauge that governs your stretch, what changed overnight, and the river companion — the story of the water you are sailing on. Free.

Keep my email for this sailing only, so Waterlogged can send me the Daily River Log Watch for it each morning, free, until the morning after the sailing ends. No marketing and no sale of my address. Stop any time by replying stop, or delete my address on request; it is deleted no later than 180 days after the scheduled sailing. Privacy details: /privacy.

Do not see your sailing? We do not report cancelled sailings. Tell us which sailing we are missing and we will add it. You can also email info@rivercruisewatch.com with the cruise line, the ship and the dates.

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Day 1–2 · Budapest

Open the official projection.

Hungary's national water authority. Its forecasting service publishes the Budapest table. water-level forecast for Budapest
Published by Országos Vízjelző Szolgálat (The Hungarian national forecasting service. It publishes the Budapest forecast under OVF.), Hungary’s national forecasting service, under OVF.
English · official Hungarian national service (OVF / OVSZ)

The button below opens the official water-level forecast for this stretch — a simple table, about six days ahead. It shows the level in centimetres at the Budapest gauge, the same way this page shows it, so the numbers line up directly.

Don't be surprised by a negative number: the gauge's zero point sits above the riverbed, so readings below zero are real measurements, not errors.

As you read the forecast, compare each day's number with the Waterlogged's estimated level for this stretch, set from the measured record rather than from any ship's draught. In 35 years of readings, every day of the cruise season below it fell inside a disruption somebody documented at the time. It is a gauge level, not a depth under a ship, and no authority or cruise line publishes it. line — our estimated level for this stretch, set from 35 years of records: every cruise-season day below it fell within a documented disruption. That estimate is ours alone: no cruise line or authority publishes an official figure here.

Open the official Budapest forecast (English) (opens in a new tab)
EuRIS Budapest — official EU portal, in English vizugy.hu Budapest — official current levels from OVF, in Hungarian

We checked the direct links on 3–4 August 2026 (docs/bfg_deep_links.md). Waterlogged never re-dates or re-scores the authority's product. Where BfG has given us permission to show their figures, they are on this page above, under BfG's name and with BfG's own issue stamp; everything else here is a link to the authority's page.
Day 3 · Bratislava

Open the official projection.

Hungary's national water authority. Its forecasting service publishes the Budapest table. water-level forecast for Budapest
Published by Országos Vízjelző Szolgálat (The Hungarian national forecasting service. It publishes the Budapest forecast under OVF.), Hungary’s national forecasting service, under OVF.
English · official Hungarian national service (OVF / OVSZ)

The button below opens the official water-level forecast for this stretch — a simple table, about six days ahead. It shows the level in centimetres at the Budapest gauge, the same way this page shows it, so the numbers line up directly.

Don't be surprised by a negative number: the gauge's zero point sits above the riverbed, so readings below zero are real measurements, not errors.

As you read the forecast, compare each day's number with the Waterlogged's estimated level for this stretch, set from the measured record rather than from any ship's draught. In 35 years of readings, every day of the cruise season below it fell inside a disruption somebody documented at the time. It is a gauge level, not a depth under a ship, and no authority or cruise line publishes it. line — our estimated level for this stretch, set from 35 years of records: every cruise-season day below it fell within a documented disruption. That estimate is ours alone: no cruise line or authority publishes an official figure here.

Open the official Budapest forecast (English) (opens in a new tab)
EuRIS Budapest — official EU portal, in English vizugy.hu Budapest — official current levels from OVF, in Hungarian

We checked the direct links on 3–4 August 2026 (docs/bfg_deep_links.md). Waterlogged never re-dates or re-scores the authority's product. Where BfG has given us permission to show their figures, they are on this page above, under BfG's name and with BfG's own issue stamp; everything else here is a link to the authority's page.
Day 4 · Vienna

Open the official projection.

Hungary's national water authority. Its forecasting service publishes the Budapest table. water-level forecast for Budapest
Published by Országos Vízjelző Szolgálat (The Hungarian national forecasting service. It publishes the Budapest forecast under OVF.), Hungary’s national forecasting service, under OVF.
English · official Hungarian national service (OVF / OVSZ)

The button below opens the official water-level forecast for this stretch — a simple table, about six days ahead. It shows the level in centimetres at the Budapest gauge, the same way this page shows it, so the numbers line up directly.

Don't be surprised by a negative number: the gauge's zero point sits above the riverbed, so readings below zero are real measurements, not errors.

As you read the forecast, compare each day's number with the Waterlogged's estimated level for this stretch, set from the measured record rather than from any ship's draught. In 35 years of readings, every day of the cruise season below it fell inside a disruption somebody documented at the time. It is a gauge level, not a depth under a ship, and no authority or cruise line publishes it. line — our estimated level for this stretch, set from 35 years of records: every cruise-season day below it fell within a documented disruption. That estimate is ours alone: no cruise line or authority publishes an official figure here.

Open the official Budapest forecast (English) (opens in a new tab)
EuRIS Budapest — official EU portal, in English vizugy.hu Budapest — official current levels from OVF, in Hungarian

We checked the direct links on 3–4 August 2026 (docs/bfg_deep_links.md). Waterlogged never re-dates or re-scores the authority's product. Where BfG has given us permission to show their figures, they are on this page above, under BfG's name and with BfG's own issue stamp; everything else here is a link to the authority's page.
Day 5 · Dürnstein & Melk

Open the official projection.

Austria's Danube River Information Services site for water levels and navigation notices. station page — Kienstock, the Wachau reference gauge
Published by Austria's government-owned waterway company for the Danube., the Austrian waterway company, through DoRIS.
English · official Austrian navigation service (viadonau / DoRIS)

No German federal product covers the Austrian Danube. Austria's own navigation service publishes a Kienstock page in English. Its graph also shows a forward series.

On that graph the measured line is labelled The German word on the Austrian graph for the measured water level.. The forward one is labelled The German word on the Austrian graph for the forward-looking values.. The forward values run several days ahead. Austria notes that Kienstock forecasts are meant for low-water situations.

Then stop looking for a target level, because there is not one. Austria publishes a An Austrian low-water reference level. It gives no depth a ship can use. figure for Kienstock but no A depth an authority aims to keep available for ships along a stretch. figure to pair with it. A level without a depth cannot be turned into a target for your ship, and we will not invent one.

What you can read is the direction of change. You also know that locks keep this stretch full anyway.

Open the official Kienstock page (English) (opens in a new tab)
EuRIS Kienstock — official EU portal, in English

We checked the direct links on 3–4 August 2026 (docs/bfg_deep_links.md). Waterlogged never re-dates or re-scores the authority's product. Where BfG has given us permission to show their figures, they are on this page above, under BfG's name and with BfG's own issue stamp; everything else here is a link to the authority's page.
Day 6 · Passau

Open the official projection.

Your call here is 63 days away — beyond the daily forecast

BfG six-week outlook for Pfelling — likely ranges for each week
Published by Bundesanstalt für Gewässerkunde (BfG).

Nothing published today can tell you the level on 9 November. Germany's federal hydrology institute. It publishes the official water-level forecasts and outlooks.'s daily forecast only reaches fourteen days ahead. Your call here is 63 days away. We have picked the product that does reach it, so you do not have to.

That product is BfG's six-week outlook. It is not a daily prediction. It shows likely ranges for each week. Each range is where that week's level is expected to fall, with the odds attached. The ranges come from many past-weather what-if runs, not from a single-line prediction.

The button below opens Pfelling's own sheet directly. Find the week beginning 9 November. Then read which band it sits in against the 290 cm line on this page.

From 26 October, this port will be fourteen days away. The daily forecast will then reach your date, and this block will switch itself over to it.

Open the six-week outlook for Pfelling (PDF, German) (opens in a new tab)

How to read it

The official document is in German. Both choices below explain the same product.

BfG's own FAQ on the six-week bands (PDF, German)
English guide (unofficial)

English guide (unofficial) — only the German original is official.

What this document is. BfG runs the river model many times over. Each run uses a different possible weather sequence taken from the historical record. The chart shades in the spread of those runs. It answers "where is this gauge likely to sit", not "what will it read on Thursday".

How the chart is laid out. Time runs left to right in weeks, not days. The upright scale is centimetres at Pfelling's own The fixed zero point for a gauge's centimetre scale. It can sit above the riverbed.. This page uses the same scale, so 290 cm means the same thing on both.

What the shaded bands mean. Each band covers a share of those model runs. A wide band means the runs disagree and the week is genuinely open. A narrow band means they agree. The band is the answer — the middle of it is not a prediction.

What to do with it. Find the week beginning 9 November. If the whole band sits below 290 cm, the outlook for your week is uniformly short. If 290 cm falls inside the band, the honest answer is that nobody knows yet. If the whole band sits above 290 cm, the outlook is comfortable — which still is not a promise about your afternoon.

What it cannot do. It cannot tell you a date, it cannot tell you whether your cruise line will sail, and a weekly average can hide days that sit well below it.

Written by Waterlogged in our own words to explain how the official product works. It is not a translation of it, it has no authority, and where the two differ the German original governs.

Open that FAQ in Google Translate ↗ Machine translation (unofficial) — only the German original is official.

PEGELONLINE — live German gauge readings ↗

We checked the direct links on 3–4 August 2026 (docs/bfg_deep_links.md). Waterlogged never re-dates or re-scores the authority's product. Where BfG has given us permission to show their figures, they are on this page above, under BfG's name and with BfG's own issue stamp; everything else here is a link to the authority's page.
Day 7 · Regensburg

Open the official projection.

Your call here is 64 days away — beyond the daily forecast

BfG six-week outlook for Pfelling — likely ranges for each week
Published by Bundesanstalt für Gewässerkunde (BfG).

Nothing published today can tell you the level on 10 November. Germany's federal hydrology institute. It publishes the official water-level forecasts and outlooks.'s daily forecast only reaches fourteen days ahead. Your call here is 64 days away. We have picked the product that does reach it, so you do not have to.

That product is BfG's six-week outlook. It is not a daily prediction. It shows likely ranges for each week. Each range is where that week's level is expected to fall, with the odds attached. The ranges come from many past-weather what-if runs, not from a single-line prediction.

The button below opens Pfelling's own sheet directly. Find the week beginning 9 November. Then read which band it sits in against the 290 cm line on this page.

From 27 October, this port will be fourteen days away. The daily forecast will then reach your date, and this block will switch itself over to it.

Open the six-week outlook for Pfelling (PDF, German) (opens in a new tab)

How to read it

The official document is in German. Both choices below explain the same product.

BfG's own FAQ on the six-week bands (PDF, German)
English guide (unofficial)

English guide (unofficial) — only the German original is official.

What this document is. BfG runs the river model many times over. Each run uses a different possible weather sequence taken from the historical record. The chart shades in the spread of those runs. It answers "where is this gauge likely to sit", not "what will it read on Thursday".

How the chart is laid out. Time runs left to right in weeks, not days. The upright scale is centimetres at Pfelling's own The fixed zero point for a gauge's centimetre scale. It can sit above the riverbed.. This page uses the same scale, so 290 cm means the same thing on both.

What the shaded bands mean. Each band covers a share of those model runs. A wide band means the runs disagree and the week is genuinely open. A narrow band means they agree. The band is the answer — the middle of it is not a prediction.

What to do with it. Find the week beginning 9 November. If the whole band sits below 290 cm, the outlook for your week is uniformly short. If 290 cm falls inside the band, the honest answer is that nobody knows yet. If the whole band sits above 290 cm, the outlook is comfortable — which still is not a promise about your afternoon.

What it cannot do. It cannot tell you a date, it cannot tell you whether your cruise line will sail, and a weekly average can hide days that sit well below it.

Written by Waterlogged in our own words to explain how the official product works. It is not a translation of it, it has no authority, and where the two differ the German original governs.

Open that FAQ in Google Translate ↗ Machine translation (unofficial) — only the German original is official.

PEGELONLINE — live German gauge readings ↗

We checked the direct links on 3–4 August 2026 (docs/bfg_deep_links.md). Waterlogged never re-dates or re-scores the authority's product. Where BfG has given us permission to show their figures, they are on this page above, under BfG's name and with BfG's own issue stamp; everything else here is a link to the authority's page.
Day 8 · Nuremberg

Open the official river information.

Germany's official waterway service for forecasts, restrictions and notices to skippers. — German federal waterway notices
Published by Germany's federal waterways and shipping administration. It publishes notices through ELWIS. / ELWIS.

No water-level product applies to this day. This water is held at a working level by locks, so there is no gauge reading that would change your day.

What can affect a day like this is a lock outage or maintenance closure. That is announced through ELWIS, the official notices-to-skippers channel — in the authority's own words, before anyone else repeats them.

For this day, check the official notices rather than the levels.

Open the official page (opens in a new tab)

We checked the direct links on 3–4 August 2026 (docs/bfg_deep_links.md). Waterlogged never re-dates or re-scores the authority's product. Where BfG has given us permission to show their figures, they are on this page above, under BfG's name and with BfG's own issue stamp; everything else here is a link to the authority's page.
Day 12 · Rüdesheim & the Rhine gorge

Open the official projection.

Your call here is 69 days away — beyond the daily forecast

BfG six-week outlook for Kaub — likely ranges for each week
Published by Bundesanstalt für Gewässerkunde (BfG).

Nothing published today can tell you the level on 15 November. Germany's federal hydrology institute. It publishes the official water-level forecasts and outlooks.'s daily forecast only reaches fourteen days ahead. Your call here is 69 days away. We have picked the product that does reach it, so you do not have to.

That product is BfG's six-week outlook. It is not a daily prediction. It shows likely ranges for each week. Each range is where that week's level is expected to fall, with the odds attached. The ranges come from many past-weather what-if runs, not from a single-line prediction.

The button below opens Kaub's own sheet directly. Find the week beginning 9 November. Then read which band it sits in against the How we calculate ship needWaterlogged estimates that a river needs to be 2.05m in depth to be navigable by river cruises. A river cruise ship has a draft of approximately 1.60m and we add an additional 0.45m above this. This number is not from official cruise line reports. Ships with smaller drafts or special permission may be able to sail in less water. The figure on the page beside this note is a gauge level, and a gauge level is the height of the water at one measuring station, read from that station's own zero. It is not the depth of the navigable channel, it is not the room left under a ship's keel, and it is not a ship's draft. Our line is a level we compare today's reading with. It is not a depth anybody has measured under your ship. line on this page.

From 1 November, this port will be fourteen days away. The daily forecast will then reach your date, and this block will switch itself over to it.

Open the six-week outlook for Kaub (PDF, German) (opens in a new tab)

How to read it

The official document is in German. Both choices below explain the same product.

BfG's own FAQ on the six-week bands (PDF, German)
English guide (unofficial)

English guide (unofficial) — only the German original is official.

What this document is. BfG runs the river model many times over. Each run uses a different possible weather sequence taken from the historical record. The chart shades in the spread of those runs. It answers "where is this gauge likely to sit", not "what will it read on Thursday".

How the chart is laid out. Time runs left to right in weeks, not days. The upright scale is centimetres at Kaub's own The fixed zero point for a gauge's centimetre scale. It can sit above the riverbed.. This page uses the same scale, so 93 cm means the same thing on both.

What the shaded bands mean. Each band covers a share of those model runs. A wide band means the runs disagree and the week is genuinely open. A narrow band means they agree. The band is the answer — the middle of it is not a prediction.

What to do with it. Find the week beginning 9 November. If the whole band sits below 93 cm, the outlook for your week is uniformly short. If 93 cm falls inside the band, the honest answer is that nobody knows yet. If the whole band sits above 93 cm, the outlook is comfortable — which still is not a promise about your afternoon.

What it cannot do. It cannot tell you a date, it cannot tell you whether your cruise line will sail, and a weekly average can hide days that sit well below it.

Written by Waterlogged in our own words to explain how the official product works. It is not a translation of it, it has no authority, and where the two differ the German original governs.

Open that FAQ in Google Translate ↗ Machine translation (unofficial) — only the German original is official.

PEGELONLINE — live German gauge readings ↗

We checked the direct links on 3–4 August 2026 (docs/bfg_deep_links.md). Waterlogged never re-dates or re-scores the authority's product. Where BfG has given us permission to show their figures, they are on this page above, under BfG's name and with BfG's own issue stamp; everything else here is a link to the authority's page.
Day 13 · Cologne

Open the official projection.

Your call here is 70 days away — beyond the daily forecast

BfG six-week outlook for Köln — likely ranges for each week
Published by Bundesanstalt für Gewässerkunde (BfG).

Nothing published today can tell you the level on 16 November. Germany's federal hydrology institute. It publishes the official water-level forecasts and outlooks.'s daily forecast only reaches fourteen days ahead. Your call here is 70 days away. We have picked the product that does reach it, so you do not have to.

That product is BfG's six-week outlook. It is not a daily prediction. It shows likely ranges for each week. Each range is where that week's level is expected to fall, with the odds attached. The ranges come from many past-weather what-if runs, not from a single-line prediction.

The button below opens Köln's own sheet directly. Find the week beginning 16 November. Then read which band it sits in against the 139 cm line on this page.

From 2 November, this port will be fourteen days away. The daily forecast will then reach your date, and this block will switch itself over to it.

Open the six-week outlook for Köln (PDF, German) (opens in a new tab)

How to read it

The official document is in German. Both choices below explain the same product.

BfG's own FAQ on the six-week bands (PDF, German)
English guide (unofficial)

English guide (unofficial) — only the German original is official.

What this document is. BfG runs the river model many times over. Each run uses a different possible weather sequence taken from the historical record. The chart shades in the spread of those runs. It answers "where is this gauge likely to sit", not "what will it read on Thursday".

How the chart is laid out. Time runs left to right in weeks, not days. The upright scale is centimetres at Köln's own The fixed zero point for a gauge's centimetre scale. It can sit above the riverbed.. This page uses the same scale, so 139 cm means the same thing on both.

What the shaded bands mean. Each band covers a share of those model runs. A wide band means the runs disagree and the week is genuinely open. A narrow band means they agree. The band is the answer — the middle of it is not a prediction.

What to do with it. Find the week beginning 16 November. If the whole band sits below 139 cm, the outlook for your week is uniformly short. If 139 cm falls inside the band, the honest answer is that nobody knows yet. If the whole band sits above 139 cm, the outlook is comfortable — which still is not a promise about your afternoon.

What it cannot do. It cannot tell you a date, it cannot tell you whether your cruise line will sail, and a weekly average can hide days that sit well below it.

Written by Waterlogged in our own words to explain how the official product works. It is not a translation of it, it has no authority, and where the two differ the German original governs.

Open that FAQ in Google Translate ↗ Machine translation (unofficial) — only the German original is official.

PEGELONLINE — live German gauge readings ↗

We checked the direct links on 3–4 August 2026 (docs/bfg_deep_links.md). Waterlogged never re-dates or re-scores the authority's product. Where BfG has given us permission to show their figures, they are on this page above, under BfG's name and with BfG's own issue stamp; everything else here is a link to the authority's page.
Day 14 · Kinderdijk

Open the official projection.

Your call here is 71 days away — beyond the daily forecast

BfG six-week outlook for Köln — likely ranges for each week
Published by Bundesanstalt für Gewässerkunde (BfG).

Nothing published today can tell you the level on 17 November. Germany's federal hydrology institute. It publishes the official water-level forecasts and outlooks.'s daily forecast only reaches fourteen days ahead. Your call here is 71 days away. We have picked the product that does reach it, so you do not have to.

That product is BfG's six-week outlook. It is not a daily prediction. It shows likely ranges for each week. Each range is where that week's level is expected to fall, with the odds attached. The ranges come from many past-weather what-if runs, not from a single-line prediction.

The button below opens Köln's own sheet directly. Find the week beginning 16 November. Then read which band it sits in against the 139 cm line on this page.

From 3 November, this port will be fourteen days away. The daily forecast will then reach your date, and this block will switch itself over to it.

Open the six-week outlook for Köln (PDF, German) (opens in a new tab)

How to read it

The official document is in German. Both choices below explain the same product.

BfG's own FAQ on the six-week bands (PDF, German)
English guide (unofficial)

English guide (unofficial) — only the German original is official.

What this document is. BfG runs the river model many times over. Each run uses a different possible weather sequence taken from the historical record. The chart shades in the spread of those runs. It answers "where is this gauge likely to sit", not "what will it read on Thursday".

How the chart is laid out. Time runs left to right in weeks, not days. The upright scale is centimetres at Köln's own The fixed zero point for a gauge's centimetre scale. It can sit above the riverbed.. This page uses the same scale, so 139 cm means the same thing on both.

What the shaded bands mean. Each band covers a share of those model runs. A wide band means the runs disagree and the week is genuinely open. A narrow band means they agree. The band is the answer — the middle of it is not a prediction.

What to do with it. Find the week beginning 16 November. If the whole band sits below 139 cm, the outlook for your week is uniformly short. If 139 cm falls inside the band, the honest answer is that nobody knows yet. If the whole band sits above 139 cm, the outlook is comfortable — which still is not a promise about your afternoon.

What it cannot do. It cannot tell you a date, it cannot tell you whether your cruise line will sail, and a weekly average can hide days that sit well below it.

Written by Waterlogged in our own words to explain how the official product works. It is not a translation of it, it has no authority, and where the two differ the German original governs.

Open that FAQ in Google Translate ↗ Machine translation (unofficial) — only the German original is official.

PEGELONLINE — live German gauge readings ↗

We checked the direct links on 3–4 August 2026 (docs/bfg_deep_links.md). Waterlogged never re-dates or re-scores the authority's product. Where BfG has given us permission to show their figures, they are on this page above, under BfG's name and with BfG's own issue stamp; everything else here is a link to the authority's page.
Day 15 · Amsterdam

Open the official river information.

The Dutch authority's website for waterway conditions and notices. — Dutch waterway information
Published by The Dutch government body for major roads, waterways and water systems..

This is not a river-level question. Locks and tides control these waterways.

The Dutch authority publishes waterway status and notices at Vaarweginformatie if you want to look. Nothing on this day turns on a low-water reading.

Open the official page (opens in a new tab)

We checked the direct links on 3–4 August 2026 (docs/bfg_deep_links.md). Waterlogged never re-dates or re-scores the authority's product. Where BfG has given us permission to show their figures, they are on this page above, under BfG's name and with BfG's own issue stamp; everything else here is a link to the authority's page.