Jizera water temperature
Jizera, Jablonec nad Jizerou · River
The current water temperature at Jizera is 11.6 °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 501 data points since July 26, 2026.
Lowest recorded value: 10.3 °C on September 19, 2026 · highest value: 21.2 °C on August 5, 2026.
In September, temperatures have ranged between 10.3 °C and 14.7 °C.
The current value is 1.2 °C below the September average of this series.
Nearby waters
More measuring points: Jizera
Frequently asked questions
Can you swim at Jizera right now?
The current water temperature is 11.6 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Jizera?
Currently 11.6 °C (updated continuously).
How warm is at Jizera in September?
In September, the water temperature recently averaged 12.8 °C.
When is the water warmest at Jizera?
Across the measurement record, July is on average the warmest month (15.9 °C).
