Aa, Rustenhof · River
The current water temperature at Aa is 17.8 °C (as of July 17, 2026, source: LANUV NRW).
Can you swim at Aa right now?
The current water temperature is 17.8 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Aa?
Currently 17.8 °C (updated continuously).
How warm is at Aa in July?
In July, the water temperature recently averaged 17.6 °C.