Lenne, Altena · River
The current water temperature at Lenne is 18.6 °C (as of July 17, 2026, source: LANUV NRW).
Can you swim at Lenne right now?
The current water temperature is 18.6 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Lenne?
Currently 18.6 °C (updated continuously).
How warm is at Lenne in July?
In July, the water temperature recently averaged 18.9 °C.