The Serpentine · Lake
The current water temperature at The Serpentine is 17.4 °C (as of October 6, 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.
Can you swim at The Serpentine right now?
The current water temperature is 17.4 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at The Serpentine?
Currently 17.4 °C (updated continuously).