Derrymullan Stream, Deerpark Bridge · River
The current water temperature at Derrymullan Stream is 15.9 °C (as of July 18, 2026, source: official monitoring networks).
Can you swim at Derrymullan Stream right now?
The current water temperature is 15.9 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Derrymullan Stream?
Currently 15.9 °C (updated continuously).
How warm is at Derrymullan Stream in July?
In July, the water temperature recently averaged 15.8 °C.