Tap a city for its water, or Tab then Enter. Straight lines join cities on different rivers.
Prague
Day 1–2 · Wed 16 – Thu 17 September · Czechia
The ship does not sail on this day. Your itinerary spends it on land, so no river level applies to it.
Not sailing
Your itinerary spends this day on land, so the ship does not sail and no river level applies to it.
Your itinerary spends this day on land. The ship is not sailing, so no river level applies to it and no waterway notice is about it.
Nuremberg; Bamberg
Day 3 · Friday 18 September
The ship does not sail on this day. Your itinerary spends it on land, so no river level applies to it.
Not sailing
Your itinerary spends this day on land, so the ship does not sail and no river level applies to it.
Your itinerary spends this day on land. The ship is not sailing, so no river level applies to it and no waterway notice is about it.
Bamberg
Day 4 · Saturday 19 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)Würzburg
Day 5 · Sunday 20 September · Germany
This is a real reading. There is nothing published to measure it against.
136 cm measured
Nothing is published for this stretch to measure the reading against.
| Water level now | 136 cm |
|---|
Water levels are measured at the Würzburg gauge – German federal waterways gauge service (PEGELONLINE).
Heidelberg
Day 6 · Monday 21 September · Germany
This is a real reading. There is nothing published to measure it against.
318 cm measured
Nothing is published for this stretch to measure the reading against.
| Water level now | 318 cm |
|---|
Water levels are measured at the Maxau gauge – German federal waterways gauge service (PEGELONLINE).
Your call here is 14 days away — beyond this forecast's reach
What to check on the official page: BfG does not forecast Maxau. Its daily fourteen-day product covers seven Rhine gauges further downstream, and Maxau is not one of them. The service that does forecast this gauge is Baden-Württemberg's own flood forecast centre, and ELWIS sends you there too.
On that page choose the Vorhersage tab. A solid line runs about two days ahead in centimetres. After that the chart switches to a wider trend estimate with a shaded band around it and a no-rain scenario, reaching roughly a fortnight.
Nothing on that page reaches 21 September yet. The forecast line stops about two days out, and the trend estimate past it is a range, not a date. Come back nearer the day.
Whichever line you read, it is the authority's, not ours. Waterlogged reports measured levels and the record behind them, and publishes no forward level of its own.
Open the official Maxau forecast (German) (opens in a new tab)Mainz; Rüdesheim
Day 7 · Tuesday 22 September · Germany
The measured level is under half of Waterlogged's reference line for this ship.
64 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 | 29 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 22 September | 138 cm |
On the record: For 2015–2025, we checked the eleven days around this date. Kaub’s lowest daily average was 61 cm, in 2018. Today’s reading is 29. 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 15 days away — beyond the daily forecast
What to check on the official page: Nothing published today can tell you the level on 22 September. 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 15 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 21 September. 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 8 September, 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)WLSN — Water level the ship 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)
Cochem
Day 8 · Wednesday 23 September · Germany
The measured level is under half of Waterlogged's reference line for this ship.
64 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 | 29 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 23 September | 138 cm |
On the record: For 2015–2025, we checked the eleven days around this date. Kaub’s lowest daily average was 61 cm, in 2018. Today’s reading is 29. 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 16 days away — beyond the daily forecast
What to check on the official page: Nothing published today can tell you the level on 23 September. 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 16 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 21 September. 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 9 September, 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)WLSN — Water level the ship 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)
Bernkastel; Trier
Day 9 · Thursday 24 September · France
This is a real reading. There is nothing published to measure it against.
217 cm measured
Nothing is published for this stretch to measure the reading against.
| Water level now | 217 cm |
|---|---|
| Normal for 24 September | 223 cm |
Water levels are measured at the Cochem gauge – German federal waterways gauge service (PEGELONLINE).
What to check on the official page: No German federal forecast covers the Moselle. The state flood forecast centre for Rhineland-Palatinate is the one service that forecasts this gauge, and the button below opens Cochem's own page there.
Its own notice says a Cochem forecast is only possible above 241 cm, because weirs hold this water at a working level. Below that the chart shows a flat line rather than a forecast.
The risk this page is built for is high water, not low. For a day on this stretch, the thing to check is the notices — lock works and closures — rather than a level.
Open the official Cochem page (German) (opens in a new tab)Reims; Paris
Day 10 · Friday 25 September
The ship does not sail on this day. Your itinerary spends it on land, so no river level applies to it.
Not sailing
Your itinerary spends this day on land, so the ship does not sail and no river level applies to it.
Your itinerary spends this day on land. The ship is not sailing, so no river level applies to it and no waterway notice is about it.
Paris
Day 11–12 · Sat 26 – Sun 27 September · France
The ship does not sail on this day. Your itinerary spends it on land, so no river level applies to it.
Not sailing
Your itinerary spends this day on land, so the ship does not sail and no river level applies to it.
Your itinerary spends this day on land. The ship is not sailing, so no river level applies to it and no waterway notice is about it.
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.
- Above the lineThe measured level is at or above Waterlogged's reference line for this ship.
- 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.