Danube water levels
Below we list links to water level information along the Danube. As the Danube's water level is regulated by a system of locks along its way, floodings are rather rare. However, strong rain can lead to high water and even to regional floodings (as devastating as in 2013). These floodings occur every ten to fifty years now and can happen at any time throughout the season. Good news: Local authorities know the value of cycle tourism and rebuild the cycle paths shortly after. At least, detours get signposted.
Occasionally relevant for cyclists: High water levels after strong windstorm can lead to crossing ferries discontinuing their service, due to branches and wood in the stream. Ferrymen fear having their boats damaged. Keep that in mind when planning next day's route.
Droughts, as seen in 2018, only effect river cruises and barges as well as liner ships, not cyclists. River cruises might be forced to bus their passengers around the river sections with low water.
Water levels in Germany (Donaueschingen to Passau)
- Water level in Donaueschingen (including forecast; if no chart is visible, click 'Abfluss')
- Water level in Ulm (incl. forecast and alert levels), historic water marks
- Water level in Donauwörth (incl. forecast and alert levels), historic water marks
- Water level in Ingolstadt (incl. forecast and alert levels), historic water marks
- Water level in Kelheim (incl. forecast and alert levels), historic water marks
- Water level in Regensburg, old town (incl. forecast and alert levels), historic water marks
- Water level in Deggendorf (incl. forecast and alert levels), historic water marks
- Water level in Passau, Danube river (incl. forecast and alert levels), historic water marks
['HW100' .. water level of a 100-year flood event, also: 'HQ100']
+++ Danube flooding: Latest information on
cycling the Danube cycle path between Passau, Linz and Grein. +++
Water levels in Austria (Passau to Vienna)
- Water level in Passau, Danube river (incl. forecast and alert levels), historic water marks
- Water level in Linz (incl. forecast)
- Water level in Mauthausen (incl. forecast), <map>
- Water level in Grein (incl. forecast), <map>
- Water level in Ybbs (incl. forecast)
- Water level in Melk (click 'Month' and 'Year' to change the time line)
- Water level in the Wachau Valley (incl. forecast)
- Water level in Korneuburg, before Vienna (incl. forecast), <last 365 days> (adjust the time frame with the slider below the chart)
- Water level in Vienna, Danube canal
['MW' .. long-term average]
Water levels in Slovakia and Hungary (Vienna to Budapest, and beyond)
- Water level in Wildungsmauer, shortly after Vienna (incl. forecast), <last 365 days> (adjust the time frame with the slider below the chart)
- Water level in Devín (near Bratislava, capital of Slovakia, incl. alert levels)
- Water level in Komárom (Hungary, incl. alert levels)
- Water level in Esztergom (incl. alert levels)
- Water level in Nagymaros (incl. alert levels)
- Water level in Budapest (capital of Hungary, incl. alert levels)
- Water level in Paks (incl. alert levels)
- Water level at the canal to Lake Balaton (Sió floodgate)
- Water level in Baja
- Water level in Mohács (10km to the border between Hungary, Croatia and Serbia)
[Daily updated forecast by the Hungarian General Directorate of Water Management]
[Data thankfully provided by the Hungarian Water Directorates, the Hungarian Hydrological Forecasting Service and the Slovenský hydrometeorologický ústav.]
Water levels in Serbia
- Water level in Bezdan (nearby the border to Hungary), alert levels
- Water level in Apatin (incl. forecast), alert levels
- Water level in Bogojevo (next gauge after confluence of Drau River, incl. forecast), alert levels
- Water level in Bačka Palanka (also: Plankenburg)
- Water level in Novi Sad (incl. forecast), alert levels
- Water level in Stari Slankamen
- Water level in Belgrade incl. forecast (4 km before Belgrade, before the Save River tributes)
- Water level in Belgrade incl. forecast (10km after Belgrade, after the Save River tributed)
- Water level in Smederevo
- Water level in Banatska Palanka
- Water level in Veliko Gradište
- Water level in Golubac (back up link)
- Water level in Prahovo (shortly before the Danube turns away from Serbia)
[Data thankfully provided by the Republic Hydrometeorological service of Serbia and the Hungarian Hydrological Forecasting Service.]
Water levels in Romania
In additiona to following list of places along the Danube, this regularly updated graphic may assist you: Danube water level in Romania
- Water level in Gruia (nearby Romania's border to Bulgaria, most western point)
- Water level in Calafat
- Water level in Rast
- Water level in Bechet
- Water level in Corabia
- Water level in Turnu Măgurele
- Water level in Zimnicea
- Water level in Giurgiu
- Water level in Călărași
- Water level in Tulcea
- Water level in Sulina (This is the end: "river km 0")