Windermere, Lakeside · Lake
The current water temperature at Windermere is 17.6 °C (as of September 8, 2026, source: official monitoring networks).
Lakes stratify in summer: bathing-warm on top, markedly colder a few metres down. Measurements are taken at the surface — right where you swim.
This measurement series includes 8 data points since July 28, 2026.
Lowest recorded value: 17.6 °C on September 8, 2026 · highest value: 22.0 °C on August 13, 2026.
In September, temperatures have ranged between 17.6 °C and 18.6 °C.
Can you swim at Windermere right now?
The current water temperature is 17.6 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Windermere?
Currently 17.6 °C (updated continuously).