Tap a city for its water, or Tab then Enter.
Amsterdam
Day 1 · Thursday 3 December · 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.
Dordrecht
Day 2 · Friday 4 December · Netherlands
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: This is not a river-level question. Locks and tides control these waterways.
The Dutch authority publishes waterway status and notices at Vaarweginformatie if you want to look. Nothing on this day turns on a low-water reading.
Open the official page (opens in a new tab)Cologne
Day 3 · Saturday 5 December · Germany
The measured level is below the published low-water reference for this stretch.
65 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 | 74 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 5 December | 273 cm |
On the record: For 2015–2025, we checked the eleven days around this date. Koeln’s lowest daily average was 80 cm, in 2018. Today’s reading is 74. 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 79 days away — beyond the daily forecast
What to check on the official page: Nothing published today can tell you the level on 5 December. 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 79 days away. We have picked the product that does reach it, so you do not have to.
That product is BfG's six-week outlook. It is not a daily prediction. It shows likely ranges for each week. Each range is where that week's level is expected to fall, with the odds attached. The ranges come from many past-weather what-if runs, not from a single-line prediction.
The button below opens Köln's own sheet directly. Find the week beginning 30 November. Then read which band it sits in against the 139 cm line on this page.
From 21 November, this port will be fourteen days away. The daily forecast will then reach your date, and this block will switch itself over to it.
Open the six-week outlook for Köln (PDF, German) (opens in a new tab)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: 2026-09-15 GMT+1 · Bundesanstalt für Gewässerkunde (BfG)
BfG’s own 6-week outlook: one block for each whole published week · BfG issued this forecast: 2026-09-14 · Bundesanstalt für Gewässerkunde (BfG)
Koblenz; Rüdesheim
Day 4 · Sunday 6 December · Germany
The measured level is under half of Waterlogged's reference line for a ship of this class.
65 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 | 28 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 6 December | 170 cm |
On the record: For 2015–2025, we checked the eleven days around this date. Kaub’s lowest daily average was 34 cm, in 2018. Today’s reading is 28. 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 80 days away — beyond the daily forecast
What to check on the official page: Nothing published today can tell you the level on 6 December. 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 80 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 30 November. Then read which band it sits in against the How we calculate ship needWaterlogged estimates that a river needs to be 2.05m in depth to be navigable by river cruises. A river cruise ship has a draft of approximately 1.60m and we add an additional 0.45m above this. This number is not from official cruise line reports. Ships with smaller drafts or special permission may be able to sail in less water. The figure on the page beside this note is a gauge level, and a gauge level is the height of the water at one measuring station, read from that station's own zero. It is not the depth of the navigable channel, it is not the room left under a ship's keel, and it is not a ship's draft. Our line is a level we compare today's reading with. It is not a depth anybody has measured under your ship. line on this page.
From 22 November, this port will be fourteen days away. The daily forecast will then reach your date, and this block will switch itself over to it.
Open the six-week outlook for Kaub (PDF, German) (opens in a new tab)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: 2026-09-15 GMT+1 · Bundesanstalt für Gewässerkunde (BfG)
Mannheim; Speyer
Day 5 · Monday 7 December · Switzerland
The measured level is under half of Waterlogged's reference line for a ship of this class.
65 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 | 28 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 7 December | 170 cm |
On the record: For 2015–2025, we checked the eleven days around this date. Kaub’s lowest daily average was 37 cm, in 2018. Today’s reading is 28. 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 81 days away — beyond the daily forecast
What to check on the official page: Nothing published today can tell you the level on 7 December. 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 81 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 7 December. 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 23 November, this port will be fourteen days away. The daily forecast will then reach your date, and this block will switch itself over to it.
Open the six-week outlook for Kaub (PDF, German) (opens in a new tab)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: 2026-09-15 GMT+1 · Bundesanstalt für Gewässerkunde (BfG)
Strasbourg
Day 6 · Tuesday 8 December · France
This is a real reading. There is nothing published to measure it against.
312 cm measured
Nothing is published for this stretch to measure the reading against.
| Water level now | 312 cm |
|---|
Water levels are measured at the Maxau gauge – German federal waterways gauge service (PEGELONLINE).
Your call here is 82 days away — beyond the daily forecast
What to check on the official page: Nothing published today can tell you the level on 8 December. 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 82 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 Maxau's own sheet directly. Find the week beginning 7 December.
From 24 November, this port will be fourteen days away. The daily forecast will then reach your date, and this block will switch itself over to it.
Open the six-week outlook for Maxau (PDF, German) (opens in a new tab)Breisach
Day 7 · Wednesday 9 December · Germany
This is a real reading. There is nothing published to measure it against.
312 cm measured
Nothing is published for this stretch to measure the reading against.
| Water level now | 312 cm |
|---|
Water levels are measured at the Maxau gauge – German federal waterways gauge service (PEGELONLINE).
Your call here is 83 days away — beyond the daily forecast
What to check on the official page: Nothing published today can tell you the level on 9 December. 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 83 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 Maxau's own sheet directly. Find the week beginning 7 December.
From 25 November, this port will be fourteen days away. The daily forecast will then reach your date, and this block will switch itself over to it.
Open the six-week outlook for Maxau (PDF, German) (opens in a new tab)Basel
Day 8 · Thursday 10 December · Switzerland
This is a real reading. There is nothing published to measure it against.
312 cm measured
Nothing is published for this stretch to measure the reading against.
| Water level now | 312 cm |
|---|
Water levels are measured at the Maxau gauge – German federal waterways gauge service (PEGELONLINE).
Your call here is 84 days away — beyond the daily forecast
What to check on the official page: Nothing published today can tell you the level on 10 December. 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 84 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 Maxau's own sheet directly. Find the week beginning 7 December.
From 26 November, this port will be fourteen days away. The daily forecast will then reach your date, and this block will switch itself over to it.
Open the six-week outlook for Maxau (PDF, German) (opens in a new tab)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.