Dünnern water temperature
Dünnern, Olten, Hammermühle · River
The current water temperature at Dünnern is 18.3 °C (as of September 1, 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.
18.3 °C
Measurement series & statistics
This measurement series includes 1391 data points since July 3, 2026.
Lowest recorded value: 14.1 °C on August 28, 2026 · highest value: 29.6 °C on August 2, 2026.
Nearby waters
Frequently asked questions
Can you swim at Dünnern right now?
The current water temperature is 18.3 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Dünnern?
Currently 18.3 °C (updated continuously).
