Ahauser Aa, Haarmuehle · River
The current water temperature at Ahauser Aa is 20.8 °C (as of July 17, 2026, source: LANUV NRW).
Can you swim at Ahauser Aa right now?
The current water temperature is 20.8 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Ahauser Aa?
Currently 20.8 °C (updated continuously).
How warm is at Ahauser Aa in July?
In July, the water temperature recently averaged 21.0 °C.