Altenau, Nordborchen · River
The current water temperature at Altenau is 10.8 °C (as of July 17, 2026, source: LANUV NRW).
Can you swim at Altenau right now?
The current water temperature is 10.8 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Altenau?
Currently 10.8 °C (updated continuously).
How warm is at Altenau in July?
In July, the water temperature recently averaged 11.7 °C.