Polečnice (Kájovský potok), Český Krumlov · River
The current water temperature at Polečnice (Kájovský potok) is 13.0 °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 503 data points since July 26, 2026.
Lowest recorded value: 12.3 °C on September 19, 2026 · highest value: 22.4 °C on August 5, 2026.
In September, temperatures have ranged between 12.3 °C and 18.0 °C.
The current value is 2.8 °C below the September average of this series.
Can you swim at Polečnice (Kájovský potok) right now?
The current water temperature is 13.0 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Polečnice (Kájovský potok)?
Currently 13.0 °C (updated continuously).
How warm is at Polečnice (Kájovský potok) in September?
In September, the water temperature recently averaged 15.8 °C.
When is the water warmest at Polečnice (Kájovský potok)?
Across the measurement record, August is on average the warmest month (18.4 °C).