Issumer Fleuth water temperature
Issumer Fleuth, Kapellen · River
The current water temperature at Issumer Fleuth is 15.5 °C (as of September 20, 2026, source: LANUV NRW).
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 468 data points since July 22, 2026.
Lowest recorded value: 13.5 °C on August 24, 2026 · highest value: 22.6 °C on August 4, 2026.
In September, temperatures have ranged between 14.4 °C and 19.6 °C.
The current value is 1.2 °C below the September average of this series.
Nearby waters
Frequently asked questions
Can you swim at Issumer Fleuth right now?
The current water temperature is 15.5 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Issumer Fleuth?
Currently 15.5 °C (updated continuously).
How warm is at Issumer Fleuth in September?
In September, the water temperature recently averaged 16.7 °C.
When is the water warmest at Issumer Fleuth?
Across the measurement record, July is on average the warmest month (19.2 °C).
