Mirna water temperature
Mirna, Mirna – Portonski most · River
The current water temperature at Mirna is 18.8 °C (as of September 20, 2026, source: DHMZ).
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 162 data points since August 17, 2026.
Lowest recorded value: 18.8 °C on September 20, 2026 · highest value: 22.5 °C on August 21, 2026.
In September, temperatures have ranged between 18.8 °C and 21.4 °C.
The current value is 2.1 °C below the September average of this series.
Nearby waters
More measuring points: Mirna
Frequently asked questions
Can you swim at Mirna right now?
The current water temperature is 18.8 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Mirna?
Currently 18.8 °C (updated continuously).
How warm is at Mirna in September?
In September, the water temperature recently averaged 20.9 °C.
