Thames water temperature

Thames, Putney · River

The current water temperature at Thames is 21.3 °C (as of September 7, 2026, source: Environment Agency).

A river can change temperature within hours — snowmelt, rain or power-plant operations show up immediately. That is why the measured value counts here, not an estimate.

21.3 °C

Measured: September 7, 2026 · continuously updated

💧 Water 21.3° · ☀️ Air 21.5° · high today 24.7°

Temperature trend of recent weeks

Nearby waters

Thames, Hammersmith · 2.8 km away21.4 °C Thames, Chiswick Pier · 3.0 km away21.5 °C Thames, Cadogan Pier · 3.8 km away20.9 °C Thames, Kew Barge · 5.1 km away21.6 °C The Serpentine · 5.3 km away23.8 °C

More measuring points: Thames

Brentford Barge22.0 °C Kew Barge21.6 °C Chiswick Pier21.5 °C Hammersmith21.4 °C Cadogan Pier20.9 °C Barrier Gardens Pier20.6 °C

Frequently asked questions

Can you swim at Thames right now?
The current water temperature is 21.3 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Thames?
Currently 21.3 °C (updated continuously).

← All waters · Warmest rivers today · Water temperature in United Kingdom