Olše water temperature
Olše, Český Těšín · River
The current water temperature at Olše is 17.2 °C (as of September 20, 2026, source: ČHMÚ).
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 502 data points since July 26, 2026.
Lowest recorded value: 16.1 °C on September 18, 2026 · highest value: 28.6 °C on August 4, 2026.
In September, temperatures have ranged between 16.1 °C and 22.6 °C.
The current value is 2.0 °C below the September average of this series.
Nearby waters
More measuring points: Olše
Frequently asked questions
Can you swim at Olše right now?
The current water temperature is 17.2 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Olše?
Currently 17.2 °C (updated continuously).
How warm is at Olše in September?
In September, the water temperature recently averaged 19.2 °C.
When is the water warmest at Olše?
Across the measurement record, August is on average the warmest month (21.5 °C).
