River Water Watch

Free report · Coming soon

The 2027 river cruise water level forecast

Planning a river cruise in 2027? This free report covers the best months to sail the Rhine, Danube, Elbe and Seine, built on river records going back to 1887 and on the gauges read every morning.

2026, and the 2027 report, in 44 seconds. Click the film to enlarge.

What you will learn

What it is built on

River Water Watch holds the official river records: the Elbe from 1887, the Danube from 1900 and the Rhine from 1901, with the Seine's shorter official record alongside them. It also holds weather records from the same river basins back to 1800. The gauges are read every morning and each day's readings go into the model, so the report carries everything the rivers have shown up to the day it is published.

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Already booked? Check your cruise dates. The checker scores your exact dates for free and emails you if anything changes before you sail.

If water levels change

Most river cruises sail as planned. When a stretch of river is too shallow for a ship, or too high for the bridges on the Seine, the usual response is to move guests to a sister ship on the other side of that stretch, or to take them by coach for that part of the day, with cabins and luggage moved for them. The itinerary changes; the trip goes on. Cancellations of whole sailings happen, and they are the exception.

2026 was an unusual year. The Rhine, the Danube and the Elbe each had more low-water days than in any year since 1997, and most sailings still went ahead, with changes of the kind described above. The rivers refill over the winter, and the report will say what this winter has done for 2027. The 2026 season page has the day counts, and what low water means explains the changes in more detail.

What the report covers

The Rhine, the Danube, the Elbe and the Seine month by month, and the classic routes week by week: Amsterdam to Basel, Amsterdam to Budapest, Passau to Budapest, Nuremberg to Vienna, Berlin to Prague, and Paris to Normandy.

No cruise line pays for River Water Watch, and no cruise line has seen the report. There is a longer explanation of how the predictions work, and a page on when to go that shows how the rivers stand today.

Common questions

Should I wait for the report before booking?

There is no need to. The report explains seasonal patterns, which are the same whether you read it before or after you book. Most lines allow date changes this far ahead of sailing; ask about the change terms when you book.

When will the report be ready?

It is being written now. There is no fixed date. People on the list get it by email first, before it appears on this site.

Will the Rhine have low water in 2027?

Nobody can promise a water level this far ahead, and there is no reason to assume low water. The report sets each month on each river against the full record, back to 1887 on the Elbe and 1901 on the Rhine, so you choose your dates on what the river has actually done.

What happens to my email address?

It is used for two emails: one to confirm the address, one with the report. You can unsubscribe at any time with one click, and the address is deleted when you do.

Free report

Get the free report when it's ready

Two emails: one to confirm your address and one with the report. Unsubscribe at any time.

Rivers: Rhine, Danube, Elbe, Seine. Page updated November 11, 2026.

The report is free for individual travelers. Travel companies, agents and other businesses need a license to use it. Email us to discuss. Details are in the terms of use.