Cerknica water temperature
Cerknica, Cerkno III · River
The current water temperature at Cerknica is 14.8 °C (as of September 20, 2026, source: ARSO).
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 334 data points since July 22, 2026.
Lowest recorded value: 13.5 °C on September 18, 2026 · highest value: 24.4 °C on July 31, 2026.
In September, temperatures have ranged between 13.5 °C and 21.9 °C.
The current value is 2.2 °C below the September average of this series.
Nearby waters
Frequently asked questions
Can you swim at Cerknica right now?
The current water temperature is 14.8 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Cerknica?
Currently 14.8 °C (updated continuously).
How warm is at Cerknica in September?
In September, the water temperature recently averaged 17.0 °C.
When is the water warmest at Cerknica?
Across the measurement record, August is on average the warmest month (18.7 °C).
