Donau water temperature
Donau, Linz · River
The current water temperature at Donau is 17.5 °C (as of September 20, 2026, source: Hydrographie Land Oberösterreich).
A river can change temperature within hours — snowmelt, rain or power-plant operations show up immediately. That is why the measured value counts here, not an estimate.
Measurement series & statistics
This measurement series includes 765 data points since July 22, 2026.
Lowest recorded value: 17.5 °C on September 18, 2026 · highest value: 24.5 °C on August 7, 2026.
In September, temperatures have ranged between 17.5 °C and 21.0 °C.
The current value is 2.3 °C below the September average of this series.
Nearby waters
More measuring points: Donau
Frequently asked questions
Can you swim at Donau right now?
The current water temperature is 17.5 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Donau?
Currently 17.5 °C (updated continuously).
How warm is at Donau in September?
In September, the water temperature recently averaged 19.8 °C.
When is the water warmest at Donau?
Across the measurement record, August is on average the warmest month (22.1 °C).
