Derwentwater water temperature

Derwentwater, Keswick · Lake

The current water temperature at Derwentwater is 15.0 °C (as of October 5, 2026, source: Environment Agency).

Lakes stratify in summer: bathing-warm on top, markedly colder a few metres down. Measurements are taken at the surface — right where you swim.

15.0 °C

Measured: October 5, 2026 · continuously updated

💧 Water 15.0° · ☀️ Air 8.4°

Temperature trend of recent weeks

Derwentwater — Photo: Slbs · CC BY-SA 2.0 · Wikimedia Commons

Nearby waters

St Johns Beck, Birkett Mire · 5.4 km away11.3 °C St Johns Beck, How Beck · 6.6 km away11.1 °C Ehen, Bleach Green · 19.3 km away12.7 °C Ehen, Oxbow · 20.4 km away12.7 °C Blelham Beck, Footbridge · 23.6 km away12.4 °C

Frequently asked questions

Can you swim at Derwentwater right now?
The current water temperature is 15.0 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Derwentwater?
Currently 15.0 °C (updated continuously).

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