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Regensburg
Day 1–2 · Sun 25 – Mon 26 October · Germany
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.
Passau
Day 3 · Tuesday 27 October · Germany
The measured level is below the published low-water reference for this stretch.
84 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 | 206 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 27 October | 308 cm |
On the record: For 2015–2025, we checked the eleven days around this date. Pfelling’s lowest daily average was 238 cm, in 2018. Today’s reading is 206. 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 20 days away — beyond the daily forecast
What to check on the official page: Nothing published today can tell you the level on 27 October. 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 20 days away. We have picked the product that does reach it, so you do not have to.
That product is BfG's six-week outlook. It is not a daily prediction. It shows likely ranges for each week. Each range is where that week's level is expected to fall, with the odds attached. The ranges come from many past-weather what-if runs, not from a single-line prediction.
The button below opens Pfelling's own sheet directly. Find the week beginning 26 October. Then read which band it sits in against the 290 cm line on this page.
From 13 October, this port will be fourteen days away. The daily forecast will then reach your date, and this block will switch itself over to it.
Open the six-week outlook for Pfelling (PDF, German) (opens in a new tab)WLSN — Water level the ship needs (290 cm)
BfG’s own 6-week outlook: one block for each whole published week · BfG issued this forecast: 2026-10-01 · Bundesanstalt für Gewässerkunde (BfG)
Krems
Day 4 · Wednesday 28 October · Austria
The measured level is below the published low-water reference for this stretch.
84 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 | 206 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 28 October | 308 cm |
On the record: For 2015–2025, we checked the eleven days around this date. Pfelling’s lowest daily average was 238 cm, in 2018. Today’s reading is 206. 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 21 days away — beyond the daily forecast
What to check on the official page: Nothing published today can tell you the level on 28 October. 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 21 days away. We have picked the product that does reach it, so you do not have to.
That product is BfG's six-week outlook. It is not a daily prediction. It shows likely ranges for each week. Each range is where that week's level is expected to fall, with the odds attached. The ranges come from many past-weather what-if runs, not from a single-line prediction.
The button below opens Pfelling's own sheet directly. Find the week beginning 26 October. Then read which band it sits in against the 290 cm line on this page.
From 14 October, this port will be fourteen days away. The daily forecast will then reach your date, and this block will switch itself over to it.
Open the six-week outlook for Pfelling (PDF, German) (opens in a new tab)WLSN — Water level the ship needs (290 cm)
BfG’s own 6-week outlook: one block for each whole published week · BfG issued this forecast: 2026-10-01 · Bundesanstalt für Gewässerkunde (BfG)
Vienna
Day 5–6 · Thu 29 – Fri 30 October · Austria
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: You can check DoRIS yourself. It has the Austrian Danube gauges and the current notices to skippers. Nothing on this part of the river turns on a low-water number.
Open the official page (opens in a new tab)Budapest
Day 7–8 · Sat 31 October – Sun 1 November · Hungary
The measured level is under half of Waterlogged's reference line for this ship.
60 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 | 0 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 31 October | 163 cm |
On the record: For 1991–2025, we checked the eleven days around this date. Budapest’s lowest daily average was 60 cm, in 2018. Today’s reading is 0. 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 the ship needs (60 cm)
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.