Aare water temperature
Aare, Thun · River
The current water temperature at Aare is 18.9 °C (as of September 20, 2026, source: BAFU).
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 1340 data points since July 22, 2026.
Lowest recorded value: 17.4 °C on August 31, 2026 · highest value: 23.4 °C on August 15, 2026.
In September, temperatures have ranged between 17.7 °C and 21.9 °C.
The current value is 1.0 °C below the September average of this series.
Nearby waters
More measuring points: Aare
Frequently asked questions
Can you swim at Aare right now?
The current water temperature is 18.9 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Aare?
Currently 18.9 °C (updated continuously).
How warm is at Aare in September?
In September, the water temperature recently averaged 19.9 °C.
When is the water warmest at Aare?
Across the measurement record, August is on average the warmest month (21.5 °C).
