Dünnern water temperature
Dünnern, Olten, Hammermühle · River
The current water temperature at Dünnern is 15.2 °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: 14.1 °C on August 28, 2026 · highest value: 29.6 °C on August 2, 2026.
In September, temperatures have ranged between 14.3 °C and 23.8 °C.
The current value is 3.7 °C below the September average of this series.
Nearby waters
Frequently asked questions
Can you swim at Dünnern right now?
The current water temperature is 15.2 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Dünnern?
Currently 15.2 °C (updated continuously).
How warm is at Dünnern in September?
In September, the water temperature recently averaged 18.9 °C.
When is the water warmest at Dünnern?
Across the measurement record, July is on average the warmest month (22.3 °C).
