Otava, Rejštejn · River
The current water temperature at Otava is 11.7 °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.
This measurement series includes 502 data points since July 26, 2026.
Lowest recorded value: 10.3 °C on September 19, 2026 · highest value: 24.1 °C on August 4, 2026.
In September, temperatures have ranged between 10.3 °C and 18.6 °C.
The current value is 2.4 °C below the September average of this series.
Can you swim at Otava right now?
The current water temperature is 11.7 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Otava?
Currently 11.7 °C (updated continuously).
How warm is at Otava in September?
In September, the water temperature recently averaged 14.1 °C.
When is the water warmest at Otava?
Across the measurement record, July is on average the warmest month (16.9 °C).