Latest readings: Tuesday 6 October 2026. Water levels change daily. Check again closer to your departure.
The Daily River Watch
Tuesday 6 October 2026
River levels this morning — not the levels expected on your sailing dates
Rain check: about 44 mm of rain is forecast above Pfelling over fourteen days. Kaub gets almost none. The forecast reaches 19 October. It does not change any status on this page.
7ports far below the line
2ports below the line
0ports above the line
2ports on lock-controlled reaches
4ports with no line to compare
4ports on stretches we watch no gauge on
0ports with no river transit recorded
1port where the ship is not sailing
What the statuses mean — each one is measured against the level we estimate this ship needs
▼ Far below the lineThe measured level is under half of Waterlogged's reference line for this ship.
▼ Below the lineThe measured level is below Waterlogged's reference line for this ship. It is not yet under half that level.
✓ Above the lineThe measured level is at or above Waterlogged's reference line for this ship.
⚓ Lock-controlledLocks 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 publishedThe reading is real. No line a ship needs is published for this stretch; where the authority publishes its own low-water reference, it is shown beside the reading.
— No reading yetWe include this location on your daily schedule but there is no data available.
— No gauge on this stretchWe 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 portThe 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 sailingThe 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temporarily unavailable, when that feed is missing or out of date.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
Bucharest
Tue 29 – Wed 30 September · Romania
⌂Not sailing
The ship does not sail on this day. Your itinerary spends it on land, so no river level applies to it.
The ship does not sail on this day.
Full details
Your itinerary spends this day on land. The ship is not sailing, so there is no stretch of river
under it and no water level that applies to it.
What the ship does
it does not sail on this day
Level reading
none applies — no river is being sailed
Sensitive to low water
not at all, on this day
Waterlogged reads river levels, and this day has none to read. What happens on it is a
question for your cruise line's own schedule, not for the water.
Day3
Ruse
Thursday 1 October · Bulgaria
▼Far below the line
The measured level is under half of Waterlogged's reference line for this ship.
-12752 cm
Scale 0–100 cm
179 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 (6 October)
-127 cm
Published An authority's published low-level mark for a stretch. It is not a requirement for your ship. for this stretch
52 cm
⬇Falling — the river level fell 11 cm in the last three days.
Water levels are measured at the Ruse gauge – Observation from Bulgaria's Executive Agency for Exploration and Maintenance of the Danube River, at Ruse. It surveys and maintains the Bulgarian Danube and publishes its gauge readings., the Bulgarian Danube authority, provided through The European River Information Services portal. It republishes official river data from member countries.. Published low-water reference — the waterway authority's own figure for this stretch, not a requirement set by your cruise line.
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.
Official forecast: ИАППД water-level forecast — Ruse, about six days ahead
Published by Bulgaria's Executive Agency for Exploration and Maintenance of the Danube River, at Ruse. It surveys and maintains the Bulgarian Danube and publishes its gauge readings., the Executive Agency for Exploration and Maintenance of the Danube River.
No German or Austrian product reaches this stretch. The Bulgarian Danube agency publishes its own forward table, and it is the only one there is here: a maximum, a forecast and a minimum for each of about six days.
Find the row for Ruse. The page is in Bulgarian, and the station names are the same ones this page uses.
Don't be surprised by a minus sign. Each gauge's zero is a fixed mark set long ago, not the riverbed, and on this stretch the summer river sits below it. A reading of −124 cm is a real measurement, not an error.
Compare each day's number with the An authority's published low-level mark for a stretch. It is not a requirement for your ship. for this stretch, shown above. That figure is the Danube Commission's low navigable water level, published by the same agency that publishes the reading — it is theirs, not ours, and it is not a requirement set by your cruise line.
The measured level is under half of Waterlogged's reference line for this ship.
-8795 cm
Scale 0–200 cm
182 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 (6 October)
-87 cm
Published An authority's published low-level mark for a stretch. It is not a requirement for your ship. for this stretch
95 cm
⬇Falling — the river level fell 5 cm in the last three days.
Water levels are measured at the Novo Selo gauge – Observation from Bulgaria's Executive Agency for Exploration and Maintenance of the Danube River, at Ruse. It surveys and maintains the Bulgarian Danube and publishes its gauge readings., the Bulgarian Danube authority, provided through The European River Information Services portal. It republishes official river data from member countries.. Published low-water reference — the waterway authority's own figure for this stretch, not a requirement set by your cruise line.
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.
Official river information: ИАППД water levels — Novo Selo
Published by Bulgaria's Executive Agency for Exploration and Maintenance of the Danube River, at Ruse. It surveys and maintains the Bulgarian Danube and publishes its gauge readings., the Executive Agency for Exploration and Maintenance of the Danube River.
Nobody publishes a forecast for this gauge. The Bulgarian Danube agency's forward table covers Oryahovo, Nikopol, Svishtov, Ruse and Silistra, and Novo Selo is not one of them. What the agency does publish is the measured level, daily, for twenty stations along the Bulgarian bank.
Find the row for Novo Selo. The page is in Bulgarian, and it gives the level, the change over the last twenty-four hours and the water temperature.
Don't be surprised by a minus sign. Each gauge's zero is a fixed mark set long ago, not the riverbed, and on this stretch the summer river sits below it. A reading of −124 cm is a real measurement, not an error.
Compare each day's number with the An authority's published low-level mark for a stretch. It is not a requirement for your ship. for this stretch, shown above. That figure is the Danube Commission's low navigable water level, published by the same agency that publishes the reading — it is theirs, not ours, and it is not a requirement set by your cruise line.
We watch no gauge on this stretch of river. There is no reading for this day and no line to measure one against.
We watch no gauge on this stretch of river.
Full details
The ship crosses this stretch on this day. We watch no gauge on it, so there is no reading for the
day and no line to measure one against.
Stretch on record
Lower Danube · Serbia
Gauge we watch here
none
Level reading
none — no gauge of ours is on this stretch
Comparison line
none — there is no reading to compare
This says what we hold, not what the river is doing. We are not telling you the water is
fine, and we are not telling you anything holds it at a working level — we have established
neither here, and we would rather leave the day blank than fill it in. We name no waterway authority
for this stretch either, because until we read a gauge on it we cannot say whose it would be.
Day6
Belgrade
Sunday 4 October · Serbia
—No gauge on this stretch
We watch no gauge on this stretch of river. There is no reading for this day and no line to measure one against.
We watch no gauge on this stretch of river.
Full details
The ship crosses this stretch on this day. We watch no gauge on it, so there is no reading for the
day and no line to measure one against.
Stretch on record
Lower Danube · Serbia
Gauge we watch here
none
Level reading
none — no gauge of ours is on this stretch
Comparison line
none — there is no reading to compare
This says what we hold, not what the river is doing. We are not telling you the water is
fine, and we are not telling you anything holds it at a working level — we have established
neither here, and we would rather leave the day blank than fill it in. We name no waterway authority
for this stretch either, because until we read a gauge on it we cannot say whose it would be.
Day7
Osijek
Monday 5 October · Croatia
—No gauge on this stretch
We watch no gauge on this stretch of river. There is no reading for this day and no line to measure one against.
We watch no gauge on this stretch of river.
Full details
The ship crosses this stretch on this day. We watch no gauge on it, so there is no reading for the
day and no line to measure one against.
Stretch on record
Lower Danube · Croatia
Gauge we watch here
none
Level reading
none — no gauge of ours is on this stretch
Comparison line
none — there is no reading to compare
This says what we hold, not what the river is doing. We are not telling you the water is
fine, and we are not telling you anything holds it at a working level — we have established
neither here, and we would rather leave the day blank than fill it in. We name no waterway authority
for this stretch either, because until we read a gauge on it we cannot say whose it would be.
Day8Today
Kalocsa
Tuesday 6 October · Hungary
The forecast for this day:high 25°C, no rain
—No gauge on this stretch
We watch no gauge on this stretch of river. There is no reading for this day and no line to measure one against.
We watch no gauge on this stretch of river.
Full details
The ship crosses this stretch on this day. We watch no gauge on it, so there is no reading for the
day and no line to measure one against.
Stretch on record
Lower Danube · Hungary
Gauge we watch here
none
Level reading
none — no gauge of ours is on this stretch
Comparison line
none — there is no reading to compare
This says what we hold, not what the river is doing. We are not telling you the water is
fine, and we are not telling you anything holds it at a working level — we have established
neither here, and we would rather leave the day blank than fill it in. We name no waterway authority
for this stretch either, because until we read a gauge on it we cannot say whose it would be.
Day9–10
Budapest
Wed 7 – Thu 8 October · Hungary
The forecast for these days:We 7 high 26°C, no rain · Th 8 high 26°C, 2 mm of rain
▼Far below the line
The measured level is under half of Waterlogged's reference line for this ship.
260184 cm
Scale 0–250 cm
58 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 (6 October)
2 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 October (median for 1991–2025)
184 cm
⬆Rising — the river level rose 1 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 2. 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.
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
Copernicus flood model (GloFAS): which way the flow heads in weeks two to four, one line and arrow per week at today’s level — direction only, not a forecast of the level · 50 runs issued 6 October · Flood data: Copernicus Emergency Management Service (GloFAS), via Open-Meteo, CC BY 4.0
Which way is the river’s flow heading after this week?
Danube at Budapest · Copernicus flood model (GloFAS), 50 runs issued 6 October
13 Oct – 19 Oct▲Rising46 of 50 runs agree
20 Oct – 26 Oct▲Rising39 of 50 runs agree
27 Oct – 2 Nov▲Rising39 of 50 runs agree
The direction of the river’s flow in weeks two to four, from the European flood model’s own forecast (the first week is left to the official prediction above): not a water level, and not a forecast of Waterlogged’s. The model has run above the measured flow on this river, so read the arrow, not a figure. A week counts as rising or falling when its average flow moves more than 5% from today’s. Flood data: Copernicus Emergency Management Service (GloFAS), via Open-Meteo, CC BY 4.0.
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 August 28th until December 31st. 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 178 cm below the normal water level for this date. During your shaded cruise dates the normal water level is 191 cm on 29 September and 170 cm on 21 October. The water level at this location historically keeps rising over the next three months.
The official prediction for this gauge
📈EuRIS official water-level prediction for Budapest Waterlogged retrieved this prediction: 5 Oct 2026, 06:16 CEST
EuRIS official water-level prediction for Budapest
API/Service Hydrometeo v3 incorporated from EuRIS (eurisportal.eu).
Waterlogged retrieved this prediction: 5 Oct 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 gauge
Water level (cm)
Tue 6 Oct, 01:00
-1
Tue 6 Oct, 07:00
-1
Tue 6 Oct, 13:00
-1
Tue 6 Oct, 19:00
-2
Wed 7 Oct, 01:00
-2
Wed 7 Oct, 07:00
-2
Wed 7 Oct, 13:00
-2
Wed 7 Oct, 19:00
-2
Thu 8 Oct, 01:00
-2
Thu 8 Oct, 07:00
-2
Thu 8 Oct, 13:00
-2
Thu 8 Oct, 19:00
-2
Fri 9 Oct, 01:00
-1
Fri 9 Oct, 07:00
0
Fri 9 Oct, 13:00
1
Fri 9 Oct, 19:00
3
Sat 10 Oct, 01:00
6
Sat 10 Oct, 07:00
10
18 figures, from Tue 6 Oct, 01:00 to Sat 10 Oct, 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.
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.
The forecast for these days:Fr 9 high 16°C, under 1 mm of rain · Sa 10 high 18°C, 2 mm of rain
▼Far below the line
The measured level is under half of Waterlogged's reference line for this ship.
260182 cm
Scale 0–250 cm
58 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 (6 October)
2 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 9 October (median for 1991–2025)
182 cm
⬆Rising — the river level rose 1 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 2. 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.
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
Copernicus flood model (GloFAS): which way the flow heads in weeks two to four, one line and arrow per week at today’s level — direction only, not a forecast of the level · 50 runs issued 6 October · Flood data: Copernicus Emergency Management Service (GloFAS), via Open-Meteo, CC BY 4.0
Which way is the river’s flow heading after this week?
Danube at Budapest · Copernicus flood model (GloFAS), 50 runs issued 6 October
13 Oct – 19 Oct▲Rising46 of 50 runs agree
20 Oct – 26 Oct▲Rising39 of 50 runs agree
27 Oct – 2 Nov▲Rising39 of 50 runs agree
The direction of the river’s flow in weeks two to four, from the European flood model’s own forecast (the first week is left to the official prediction above): not a water level, and not a forecast of Waterlogged’s. The model has run above the measured flow on this river, so read the arrow, not a figure. A week counts as rising or falling when its average flow moves more than 5% from today’s. Flood data: Copernicus Emergency Management Service (GloFAS), via Open-Meteo, CC BY 4.0.
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 August 28th until December 31st. 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 178 cm below the normal water level for this date. During your shaded cruise dates the normal water level is 191 cm on 29 September and 170 cm on 21 October. The water level at this location historically keeps rising over the next three months.
The official prediction for this gauge
📈EuRIS official water-level prediction for Budapest Waterlogged retrieved this prediction: 5 Oct 2026, 06:16 CEST
EuRIS official water-level prediction for Budapest
API/Service Hydrometeo v3 incorporated from EuRIS (eurisportal.eu).
Waterlogged retrieved this prediction: 5 Oct 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 gauge
Water level (cm)
Tue 6 Oct, 01:00
-1
Tue 6 Oct, 07:00
-1
Tue 6 Oct, 13:00
-1
Tue 6 Oct, 19:00
-2
Wed 7 Oct, 01:00
-2
Wed 7 Oct, 07:00
-2
Wed 7 Oct, 13:00
-2
Wed 7 Oct, 19:00
-2
Thu 8 Oct, 01:00
-2
Thu 8 Oct, 07:00
-2
Thu 8 Oct, 13:00
-2
Thu 8 Oct, 19:00
-2
Fri 9 Oct, 01:00
-1
Fri 9 Oct, 07:00
0
Fri 9 Oct, 13:00
1
Fri 9 Oct, 19:00
3
Sat 10 Oct, 01:00
6
Sat 10 Oct, 07:00
10
18 figures, from Tue 6 Oct, 01:00 to Sat 10 Oct, 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.
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.
This is a real reading. The authority’s own low-water reference is shown beside it; no line a ship needs is published here.
102231 cm
Scale 0–300 cm
102 cm measured
No line a ship needs is published for this stretch, so we do not measure the reading against one. The authority’s own low-water reference is shown below as their figure.
Water level now (6 October)
102 cm
viadonau’s published low-water reference (RNW 2020)
161 cm
Normal for 11 October (median for 2002–2026)
231 cm
⬇Falling — the river level fell 4 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 line published — the reading is official, and so is the low-water reference beside it. No maintained depth is published to pair with that reference, so it is not a line a ship needs.
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: 5 Oct 2026, 06:16 CEST · API/Service Hydrometeo v3 incorporated from EuRIS (eurisportal.eu) · Quelle: viadonau
Copernicus flood model (GloFAS): which way the flow heads in weeks two to four, one line and arrow per week at today’s level — direction only, not a forecast of the level · 50 runs issued 6 October · Flood data: Copernicus Emergency Management Service (GloFAS), via Open-Meteo, CC BY 4.0
Which way is the river’s flow heading after this week?
Danube at Kienstock (the Wachau) · Copernicus flood model (GloFAS), 50 runs issued 6 October
13 Oct – 19 Oct▲Rising47 of 50 runs agree
20 Oct – 26 Oct▲Rising39 of 50 runs agree
27 Oct – 2 Nov▲Rising38 of 50 runs agree
The direction of the river’s flow in weeks two to four, from the European flood model’s own forecast (the first week is left to the official prediction above): not a water level, and not a forecast of Waterlogged’s. The model has run above the measured flow on this river, so read the arrow, not a figure. A week counts as rising or falling when its average flow moves more than 5% from today’s. Flood data: Copernicus Emergency Management Service (GloFAS), via Open-Meteo, CC BY 4.0.
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 August 28th until December 31st. Today's water sits 134 cm below the normal water level for this date. During your shaded cruise dates the normal water level is 247 cm on 29 September and 227 cm on 21 October. 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: 5 Oct 2026, 06:16 CEST
EuRIS official water-level prediction for Kienstock
API/Service Hydrometeo v3 incorporated from EuRIS (eurisportal.eu).
Waterlogged retrieved this prediction: 5 Oct 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 gauge
Water level (cm)
Tue 6 Oct, 00:00
103
Tue 6 Oct, 01:00
102
Tue 6 Oct, 02:00
102
Tue 6 Oct, 03:00
102
Tue 6 Oct, 04:00
102
Tue 6 Oct, 05:00
102
Tue 6 Oct, 06:00
101
Tue 6 Oct, 07:00
101
Tue 6 Oct, 08:00
101
Tue 6 Oct, 09:00
101
Tue 6 Oct, 10:00
101
Tue 6 Oct, 11:00
101
Tue 6 Oct, 12:00
101
Tue 6 Oct, 13:00
101
Tue 6 Oct, 14:00
101
Tue 6 Oct, 15:00
101
Tue 6 Oct, 16:00
101
Tue 6 Oct, 17:00
100
Tue 6 Oct, 18:00
100
Tue 6 Oct, 19:00
100
Tue 6 Oct, 20:00
100
Tue 6 Oct, 21:00
99
Tue 6 Oct, 22:00
99
Tue 6 Oct, 23:00
99
Wed 7 Oct, 00:00
99
Wed 7 Oct, 01:00
99
Wed 7 Oct, 02:00
99
Wed 7 Oct, 03:00
98
Wed 7 Oct, 04:00
98
Wed 7 Oct, 05:00
98
Wed 7 Oct, 06:00
98
Wed 7 Oct, 07:00
98
Wed 7 Oct, 08:00
98
Wed 7 Oct, 09:00
98
Wed 7 Oct, 10:00
98
Wed 7 Oct, 11:00
98
Wed 7 Oct, 12:00
98
Wed 7 Oct, 13:00
98
Wed 7 Oct, 14:00
98
Wed 7 Oct, 15:00
98
Wed 7 Oct, 16:00
98
Wed 7 Oct, 17:00
98
Wed 7 Oct, 18:00
98
Wed 7 Oct, 19:00
98
Wed 7 Oct, 20:00
98
Wed 7 Oct, 21:00
98
Wed 7 Oct, 22:00
98
Wed 7 Oct, 23:00
97
Thu 8 Oct, 00:00
97
Thu 8 Oct, 01:00
97
Thu 8 Oct, 02:00
97
Thu 8 Oct, 03:00
97
Thu 8 Oct, 04:00
96
Thu 8 Oct, 05:00
96
Thu 8 Oct, 06:00
96
Thu 8 Oct, 07:00
96
Thu 8 Oct, 08:00
96
Thu 8 Oct, 09:00
96
Thu 8 Oct, 10:00
96
Thu 8 Oct, 11:00
96
Thu 8 Oct, 12:00
96
Thu 8 Oct, 13:00
96
Thu 8 Oct, 14:00
96
Thu 8 Oct, 15:00
96
Thu 8 Oct, 16:00
96
Thu 8 Oct, 17:00
96
Thu 8 Oct, 18:00
96
Thu 8 Oct, 19:00
96
Thu 8 Oct, 20:00
95
Thu 8 Oct, 21:00
95
Thu 8 Oct, 22:00
95
Thu 8 Oct, 23:00
95
Fri 9 Oct, 00:00
95
Fri 9 Oct, 01:00
94
Fri 9 Oct, 02:00
94
Fri 9 Oct, 03:00
94
Fri 9 Oct, 04:00
94
Fri 9 Oct, 05:00
95
Fri 9 Oct, 06:00
95
Fri 9 Oct, 07:00
95
Fri 9 Oct, 08:00
96
Fri 9 Oct, 09:00
97
Fri 9 Oct, 10:00
97
Fri 9 Oct, 11:00
98
Fri 9 Oct, 12:00
100
Fri 9 Oct, 13:00
101
Fri 9 Oct, 14:00
102
Fri 9 Oct, 15:00
103
Fri 9 Oct, 16:00
104
Fri 9 Oct, 17:00
105
Fri 9 Oct, 18:00
106
Fri 9 Oct, 19:00
107
Fri 9 Oct, 20:00
107
Fri 9 Oct, 21:00
107
Fri 9 Oct, 22:00
107
Fri 9 Oct, 23:00
107
Sat 10 Oct, 00:00
107
Sat 10 Oct, 01:00
106
Sat 10 Oct, 02:00
106
Sat 10 Oct, 03:00
106
Sat 10 Oct, 04:00
105
Sat 10 Oct, 05:00
105
Sat 10 Oct, 06:00
104
103 figures, from Tue 6 Oct, 00:00 to Sat 10 Oct, 06:00, 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.
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. The Wachau runs free between the Melk and Altenwörth barrages, so the river’s own flow sets the level here, not a lock.
The forecast for this day:high 14°C, under 1 mm of rain
▼Below the line
The measured level is below the published low-water reference for this stretch.
204290305 cm
Scale 0–500 cm
86 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 (6 October)
204 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 12 October (median for 2015–2026)
305 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 204. 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.
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 · BfG issued this forecast: 2026-10-01 · 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 August 28th until December 31st. 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 105 cm below the normal water level for this date. During your shaded cruise dates the normal water level is 309 cm on 29 September and 306 cm on 21 October. 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: 2026-10-01
BfG's 6-week outlook for Pfelling
Published by Bundesanstalt für Gewässerkunde (BfG).
BfG issued this forecast: 2026-10-01.
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.
Week
Lower
Middle
Upper
1–7 October
172
191
212
8–14 October
154
212
299
15–21 October
134
206
330
22–28 October
120
202
358
29 Oct–4 Nov
110
191
349
5–11 November
98
176
334
The three columns are BfG's own 5th, 50th and 95th percentiles from their weather-driven runs, in centimetres at the gauge.
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 14-day forecast for Pfelling, via ELWIS
Published by Bundesanstalt für Gewässerkunde (BfG), published through ELWIS.
Your call here is now inside the daily forecast's fourteen-day horizon. So this block has switched itself from the six-week bands to the daily product.
The button below opens Pfelling's own forecast page directly. Read across to 12 October. Remember the number 290 cm.
BfG publishes a range, not a single line — that spread is their own honest uncertainty. Read the whole of it.
The measured level is below the published low-water reference for this stretch.
204290305 cm
Scale 0–500 cm
86 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 (6 October)
204 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 13 October (median for 2015–2026)
305 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 204. 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.
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 · BfG issued this forecast: 2026-10-01 · 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 August 28th until December 31st. 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 105 cm below the normal water level for this date. During your shaded cruise dates the normal water level is 309 cm on 29 September and 306 cm on 21 October. 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: 2026-10-01
BfG's 6-week outlook for Pfelling
Published by Bundesanstalt für Gewässerkunde (BfG).
BfG issued this forecast: 2026-10-01.
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.
Week
Lower
Middle
Upper
1–7 October
172
191
212
8–14 October
154
212
299
15–21 October
134
206
330
22–28 October
120
202
358
29 Oct–4 Nov
110
191
349
5–11 November
98
176
334
The three columns are BfG's own 5th, 50th and 95th percentiles from their weather-driven runs, in centimetres at the gauge.
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 14-day forecast for Pfelling, via ELWIS
Published by Bundesanstalt für Gewässerkunde (BfG), published through ELWIS.
Your call here is now inside the daily forecast's fourteen-day horizon. So this block has switched itself from the six-week bands to the daily product.
The button below opens Pfelling's own forecast page directly. Read across to 13 October. Remember the number 290 cm.
BfG publishes a range, not a single line — that spread is their own honest uncertainty. Read the whole of it.
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 level
the Main–Danube Canal chain of locks
Kind of water
the canal's highest level, filled by pumps
Level reading
no level reading is published for this stretch
Sensitive to low water
far 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.
This is a real reading. There is nothing published to measure it against.
145 cm
Scale 0–250 cm
145 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 (6 October)
145 cm
⬆Rising — the river level rose 7 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.
Day18
Würzburg
Friday 16 October · Germany
The forecast for this day:high 18°C, 3 mm of rain
—No line published
This is a real reading. There is nothing published to measure it against.
145 cm
Scale 0–250 cm
145 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 (6 October)
145 cm
⬆Rising — the river level rose 7 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.
Day19
Wertheim
Saturday 17 October · Germany
The forecast for this day:high 13°C, no rain
—No line published
This is a real reading. There is nothing published to measure it against.
145 cm
Scale 0–250 cm
145 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 (6 October)
145 cm
⬆Rising — the river level rose 7 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.
Day20
Koblenz
Sunday 18 October · Germany
The forecast for this day:high 13°C, no rain
▼Far below the line
The measured level is under half of Waterlogged's reference line for this ship.
193126 cm
Scale 0–150 cm
92 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 (6 October)
1 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 18 October (median for 2015–2026)
126 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 25 cm, in 2018. Today’s reading is 1. That is below every one of the 121 readings in that window.
Water levels are measured at the Kaub gauge – German federal waterways gauge service (PEGELONLINE).
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 · on 2 days the bottom of the range falls below 0 cm, the foot of this frame · BfG issued this forecast: 2026-10-05 GMT+1 · Bundesanstalt für Gewässerkunde (BfG)
BfG’s own 6-week outlook: one block for each whole published week · the bottoms of 4 weeks' ranges fall below 0 cm, the foot of this frame · BfG issued this forecast: 2026-10-01 · 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 August 28th until December 31st. 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 124 cm below the normal water level for this date. During your shaded cruise dates the normal water level is 134 cm on 29 September and 128 cm on 21 October. 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: 2026-10-05 GMT+1
BfG's 14-day water-level forecast for Kaub
Published by Bundesanstalt für Gewässerkunde (BfG).
BfG issued this forecast: 2026-10-05 GMT+1.
BfG's own daily figures for Kaub, in cm at the gauge.
Day
Lower
Middle
Upper
Tue 6 Oct
0
2
4
Wed 7 Oct
2
4
6
Thu 8 Oct
-1
2
6
Fri 9 Oct
-1
7
15
Sat 10 Oct
3
16
31
Sun 11 Oct
12
33
60
Mon 12 Oct
11
32
60
Tue 13 Oct
8
29
57
Wed 14 Oct
8
29
57
Thu 15 Oct
8
28
56
Fri 16 Oct
5
27
56
Sat 17 Oct
3
26
59
Sun 18 Oct
2
27
66
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".
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 14-day forecast for Kaub, via ELWIS
Published by Bundesanstalt für Gewässerkunde (BfG), published through ELWIS.
Your call here is now inside the daily forecast's fourteen-day horizon. So this block has switched itself from the six-week bands to the daily product.
The button below opens Kaub's own forecast page directly. Read across to 18 October. Remember the number 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..
BfG publishes a range, not a single line — that spread is their own honest uncertainty. Read the whole of it.
The measured level is under half of Waterlogged's reference line for this ship.
48139186 cm
Scale 0–250 cm
91 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 (6 October)
48 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 19 October (median for 2015–2026)
186 cm
↔Steady — the river level did not change over the last three days.
On the record: For 2015–2025, we checked the eleven days around this date. Koeln’s lowest daily average was 69 cm, in 2018. Today’s reading is 48. 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.
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: 2026-10-05 GMT+1 · Bundesanstalt für Gewässerkunde (BfG)
BfG’s own 6-week outlook: one block for each whole published week · the bottoms of 3 weeks' ranges fall below 0 cm, the foot of this frame · BfG issued this forecast: 2026-10-01 · 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 August 28th until December 31st. 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 135 cm below the normal water level for this date. During your shaded cruise dates the normal water level is 189 cm on 29 September and 190 cm on 21 October. 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: 2026-10-05 GMT+1
BfG's 14-day water-level forecast for Köln
Published by Bundesanstalt für Gewässerkunde (BfG).
BfG issued this forecast: 2026-10-05 GMT+1.
BfG's own daily figures for Köln, in cm at the gauge.
Day
Lower
Middle
Upper
Tue 6 Oct
46
48
49
Wed 7 Oct
42
44
47
Thu 8 Oct
45
49
53
Fri 9 Oct
54
66
78
Sat 10 Oct
60
74
90
Sun 11 Oct
58
77
100
Mon 12 Oct
53
79
114
Tue 13 Oct
56
83
118
Wed 14 Oct
53
80
115
Thu 15 Oct
54
80
114
Fri 16 Oct
53
79
112
Sat 17 Oct
51
78
112
Sun 18 Oct
48
78
119
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".
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 14-day forecast for Köln, via ELWIS
Published by Bundesanstalt für Gewässerkunde (BfG), published through ELWIS.
Your call here is now inside the daily forecast's fourteen-day horizon. So this block has switched itself from the six-week bands to the daily product.
The button below opens Köln's own forecast page directly. Read across to 19 October. Remember the number 139 cm.
BfG publishes a range, not a single line — that spread is their own honest uncertainty. Read the whole of it.
The measured level is under half of Waterlogged's reference line for this ship.
48139189 cm
Scale 0–250 cm
91 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 (6 October)
48 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 20 October (median for 2015–2026)
189 cm
↔Steady — the river level did not change over the last three days.
On the record: For 2015–2025, we checked the eleven days around this date. Koeln’s lowest daily average was 69 cm, in 2018. Today’s reading is 48. 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.
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: 2026-10-05 GMT+1 · Bundesanstalt für Gewässerkunde (BfG)
BfG’s own 6-week outlook: one block for each whole published week · the bottoms of 3 weeks' ranges fall below 0 cm, the foot of this frame · BfG issued this forecast: 2026-10-01 · 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 August 28th until December 31st. 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 135 cm below the normal water level for this date. During your shaded cruise dates the normal water level is 189 cm on 29 September and 190 cm on 21 October. 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: 2026-10-05 GMT+1
BfG's 14-day water-level forecast for Köln
Published by Bundesanstalt für Gewässerkunde (BfG).
BfG issued this forecast: 2026-10-05 GMT+1.
BfG's own daily figures for Köln, in cm at the gauge.
Day
Lower
Middle
Upper
Tue 6 Oct
46
48
49
Wed 7 Oct
42
44
47
Thu 8 Oct
45
49
53
Fri 9 Oct
54
66
78
Sat 10 Oct
60
74
90
Sun 11 Oct
58
77
100
Mon 12 Oct
53
79
114
Tue 13 Oct
56
83
118
Wed 14 Oct
53
80
115
Thu 15 Oct
54
80
114
Fri 16 Oct
53
79
112
Sat 17 Oct
51
78
112
Sun 18 Oct
48
78
119
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".
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 14-day forecast for Köln, via ELWIS
Published by Bundesanstalt für Gewässerkunde (BfG), published through ELWIS.
Your call here is now inside the daily forecast's fourteen-day horizon. So this block has switched itself from the six-week bands to the daily product.
The button below opens Köln's own forecast page directly. Read across to 20 October. Remember the number 139 cm.
BfG publishes a range, not a single line — that spread is their own honest uncertainty. Read the whole of it.
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 level
the Dutch sea locks and control by tides
Kind of water
controlled by locks, supplied by tides
Level reading
no level reading is published for this stretch
Sensitive to low water
far 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.
Rain forecast by Open-Meteo (commercial licence) · fetched 6 October 2026 at 05:16 UTC · covering 14 days, 6 October to 19 October.
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.
The days of your own sailing are shaded: 6 October to 19 October. The forecast stops before your cruise does, so the rest of it is not here yet.
Rain forecast by Open-Meteo (commercial licence) · fetched 6 October 2026 at 05:16 UTC · covering 14 days, 6 October to 19 October.
Rain forecast by Open-Meteo (commercial licence) · fetched 6 October 2026 at 05:16 UTC · covering 14 days, 6 October to 19 October.
In our 25 years of Budapest records, rain of this size has moved the water level here by a few centimetres at a time. Today’s level sits 182 cm below normal for the date. It would take far more than this to close 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.
Rain forecast by Open-Meteo (commercial licence) · fetched 6 October 2026 at 05:16 UTC · covering 14 days, 6 October to 19 October.
At Kienstock the river runs free, so the river’s own flow sets this level, not a dam. Today’s level sits 129 cm below normal for the date. No line a ship needs is published here, so we do not say what rain like this would mean for 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.
Rain forecast by Open-Meteo (commercial licence) · fetched 6 October 2026 at 05:16 UTC · covering 14 days, 6 October to 19 October.
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 rain like this raised the water level here for a few days before it settled back. It did not close a gap of 86 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.
Rain forecast by Open-Meteo (commercial licence) · fetched 6 October 2026 at 05:16 UTC · covering 14 days, 6 October to 19 October.
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 91 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.
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
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.
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.
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.
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.
How to read every number on this page
"Water level now" is the authority's measured reading at the gauge named on this page. It uses centimetres from that The fixed zero point for a gauge's centimetre scale. It can sit above the riverbed.. It is a level, not a depth of water under your ship. It is not the depth of the The navigable channel where ships are meant to pass. either, and it is not your ship's How deep a ship sits in the water. That depth sets how much water it needs underneath..
"Water level the ship needs" — written WLSN at each end of its bold dashed line on the graphs — is Waterlogged's own arithmetic on published reference figures for that stretch and the draft we hold for this ship. It is our line, plainly labelled, and it is not the operator's decision to sail.
The seasonal graph shows two different things. Left of the today line, solid blue shows the levels that were measured. Right of it, the dashed line shows the historical average for each date. It comes from what these gauges recorded on that date in past years. It is not a forecast of this autumn, and we do not draw one. We show it because that average keeps falling through October. That is useful to know before you sail.
Where a line comes from the record — Budapest — the page says so. There is still no maintained-depth model published for the Hungarian Danube, so instead of guessing at one we set our level from what actually happened: in 35 years of readings, every cruise-season day below it fell within a disruption somebody documented at the time.
Where no mark exists — Kienstock — we show the reading and the official marks and stop there.
Where the numbers come from. Measured levels for Kaub, Cologne, Pfelling and
Hofkirchen are verified daily averages from Germany's official service for live and archived federal waterway gauge readings.. They cover 2015–2026 and
are topped up from the live archive. Budapest and Kienstock readings come through The European River Information Services portal. It republishes official river data from member countries.
and Austria's Danube River Information Services site for water levels and navigation notices.. For those two the solid line on the graph is drawn from our own recording of
that live feed, which began in July 2026, so it is short and grows by a day each day; the graph says where it starts.
The longer measured archive behind Kienstock is not ours to republish, so we do not draw it and we print no
record sentence for it. For Budapest that changed on 17 August 2026: the General Directorate of Water Management
gave us written permission to publish its own archive, and the average for each date now stands on
35 years of it. Each "normal for this date"
uses a 31-day circular The middle past value for that date. Half of past years were higher and half were lower. — the middle value, so half of past years were
higher and half lower. The averages use 12 years of records on the German gauges,
35 years on Budapest and 25 years on Kienstock, from the projection engine's own
doy_median_cm arrays. Record lines use an eleven-day window centred on the port's own date, across each
gauge's whole archive. Budapest's levels come from Országos Vízügyi Főigazgatóság (OVF) / General Directorate of
Water Management; where we work them into an average, those input data originate from the General Directorate of
Water Management.
Nothing here is a forecast. The trend and the graph describe measured moves that have already happened. We do not model your cruise and we do not give you a percentage chance of anything.
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.
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.
