Tap a city for its water, or Tab then Enter. Straight lines join cities on different rivers.
Amsterdam
Day 1–2 · Wed 9 – Thu 10 September · Netherlands
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.
In port
The ship is in port on this day, and our record holds no river transit for it, so there is no stretch of river to read.
The ship is in port on this day. Our record holds no river transit for it, so there is no stretch of river being read here.
Cologne > Bonn
Day 3 · Friday 11 September · Germany
The measured level is below the published low-water reference for this stretch.
63 cm below the published low-water reference
That is how far today's measured level sits below the published low-water reference for this stretch — the waterway authority’s own figure, not ours and not the cruise line's.
| Water level now | 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 11 September | 201 cm |
On the record: For 2015–2025, we checked the eleven days around this date. Koeln’s lowest daily average was 113 cm, in 2022. 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).
Your call here is 4 days away — the daily forecast now reaches it
What to check on the official page: 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 11 September. 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.
Open the 14-day forecast for Köln (German) (opens in a new tab)WLSN — Water level a ship of this class needs (139 cm)
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)
Rhine Gorge > Rüdesheim
Day 4 · Saturday 12 September · Germany
The measured level is under half of Waterlogged's reference line for a ship of this class.
59 cm below Waterlogged’s reference line
That is how far today's measured level sits below the line we estimate a ship of this class needs. The level it is measured against is our own estimate, not a figure from the cruise line.
| Water level now | 34 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 12 September | 143 cm |
On the record: For 2015–2025, we checked the eleven days around this date. Kaub’s lowest daily average was 68 cm, in 2022. Today’s reading is 34. 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).
Your call here is 5 days away — the daily forecast now reaches it
What to check on the official page: 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 12 September. 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.
Open the 14-day forecast for Kaub (German) (opens in a new tab)WLSN — Water level a ship of this class needs (93 cm)
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)
Miltenberg > Wertheim
Day 5 · Sunday 13 September · Germany
The measured level is under half of Waterlogged's reference line for a ship of this class.
59 cm below Waterlogged’s reference line
That is how far today's measured level sits below the line we estimate a ship of this class needs. The level it is measured against is our own estimate, not a figure from the cruise line.
| Water level now | 34 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 13 September | 142 cm |
On the record: For 2015–2025, we checked the eleven days around this date. Kaub’s lowest daily average was 69 cm, in 2015. Today’s reading is 34. 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).
Your call here is 6 days away — the daily forecast now reaches it
What to check on the official page: 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 13 September. 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.
Open the 14-day forecast for Kaub (German) (opens in a new tab)WLSN — Water level a ship of this class needs (93 cm)
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)
Würzburg
Day 6 · Monday 14 September · Germany
This is a real reading. There is nothing published to measure it against.
149 cm measured
Nothing is published for this stretch to measure the reading against.
| Water level now | 149 cm |
|---|
Water levels are measured at the Würzburg gauge – German federal waterways gauge service (PEGELONLINE).
Bamberg
Day 7 · Tuesday 15 September · Germany
This is a real reading. There is nothing published to measure it against.
149 cm measured
Nothing is published for this stretch to measure the reading against.
| Water level now | 149 cm |
|---|
Water levels are measured at the Würzburg gauge – German federal waterways gauge service (PEGELONLINE).
Nuremberg
Day 8 · Wednesday 16 September · Germany
This is a real reading. There is nothing published to measure it against.
149 cm measured
Nothing is published for this stretch to measure the reading against.
| Water level now | 149 cm |
|---|
Water levels are measured at the Würzburg gauge – German federal waterways gauge service (PEGELONLINE).
Regensburg
Day 9 · Thursday 17 September · Germany
Locks hold this water at a working level, so low water is far less likely to affect this stretch. Other things still can.
Held by locks
Locks hold this level, so low water rarely stops a ship here. High water, maintenance, a closure, a restriction or the cruise line's own decision still can.
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.
What to check on the official page: 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)Passau > Schlogen
Day 10 · Friday 18 September · Austria
The measured level is below the published low-water reference for this stretch.
71 cm below the published low-water reference
That is how far today's measured level sits below the published low-water reference for this stretch — the waterway authority’s own figure, not ours and not the cruise line's.
| Water level now | 219 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 18 September | 310 cm |
On the record: For 2015–2025, we checked the eleven days around this date. Pfelling’s lowest daily average was 242 cm, in 2018. Today’s reading is 219. 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).
Your call here is 11 days away — the daily forecast now reaches it
What to check on the official page: 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 18 September. 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.
Open the 14-day forecast for Pfelling (German) (opens in a new tab)WLSN — Water level a ship of this class needs (290 cm)
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)
Dürnstein > Krems
Day 11 · Saturday 19 September · Austria
This is a real reading. There is nothing published to measure it against.
102 cm measured
Nothing is published for this stretch to measure the reading against.
| Water level now | 102 cm |
|---|---|
| Normal for 19 September | 255 cm |
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..
What to check on the official page: 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 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
Vienna
Day 12–13 · Sun 20 – Mon 21 September · Austria
This is a real reading. There is nothing published to measure it against.
102 cm measured
Nothing is published for this stretch to measure the reading against.
| Water level now | 102 cm |
|---|---|
| Normal for 20 September | 254 cm |
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..
What to check on the official page: 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 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
Budapest
Day 14–15 · Tue 22 – Wed 23 September · Hungary
The measured level is under half of Waterlogged's reference line for a ship of this class.
45 cm below Waterlogged’s estimated level
That is how far today's measured level sits below Waterlogged’s estimated level for this stretch — read from the years of record, not a figure from the cruise line.
| Water level now | 15 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 22 September | 197 cm |
On the record: For 1991–2025, we checked the eleven days around this date. Budapest’s lowest daily average was 71 cm, in 2015. Today’s reading is 15. 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..
What to check on the official page: 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)WLSN — Water level a ship of this class needs (60 cm)
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
What the statuses mean — each one is measured against the level we estimate a ship of this class needs
- Far below the lineThe measured level is under half of Waterlogged's reference line for a ship of this class.
- Below the lineThe measured level is below Waterlogged's reference line for a ship of this class.
- Above the lineThe measured level is at or above Waterlogged's reference line for a ship of this class.
- Lock-controlledLocks hold this water at a working level, so low water is far less likely to affect this stretch. Other things still can.
- No line publishedThis is a real reading. There is nothing published to measure it against.
- No reading yetWe watch a gauge on this stretch. No current reading is on file for it.
- No gauge on this stretchWe watch no gauge on this stretch of river. There is no reading for this day and no line to measure one against.
- 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.
- Not sailingThe ship does not sail on this day. Your itinerary spends it on land, so no river level applies to it.
The small white boards mark A riverside station that measures the water level in centimetres against a fixed zero point. stations — the places where a reading is physically taken. Each is drawn at its own town's coordinate, which can sit close to the port it serves. Each stretch is coloured by the worst port on it. A gauge level is not the depth of the The navigable channel where ships are meant to pass., not the room under your ship's keel, and not your ship's How deep a ship sits in the water. That depth sets how much water it needs underneath..
Every port, in the order you reach it
This list repeats the map information. It is there for phones, for screen readers and for printing.
Cities are drawn at their true latitude and longitude. The river line is a simplified course, not a navigation chart. Course geometry: Natural Earth (public domain) and © OpenStreetMap contributors, ODbL 1.0.
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.