Lough Derravaragh · Lake
The current water temperature at Lough Derravaragh is 13.3 °C (as of July 18, 2026, source: official monitoring networks).
Can you swim at Lough Derravaragh right now?
The current water temperature is 13.3 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Lough Derravaragh?
Currently 13.3 °C (updated continuously).
How warm is at Lough Derravaragh in July?
In July, the water temperature recently averaged 13.3 °C.