Themse water temperature

Themse, Wolvercote · River

The current water temperature at Themse is 17.2 °C (as of September 23, 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.

17.2 °C

Measured: September 23, 2026 · continuously updated

💧 Water 17.2° · ☀️ Air 11.6° · high today 14.5°

Temperature trend of recent weeks

Themse — Photo: Sarah Charlesworth · CC BY-SA 2.0 · Wikimedia Commons

Measurement series & statistics

This measurement series includes 11 data points since August 28, 2026.

Lowest recorded value: 16.6 °C on September 18, 2026 · highest value: 19.8 °C on August 28, 2026.

Nearby waters

Themse, Wallingford · 23.4 km away17.8 °C Themse, Pangbourne · 35.8 km away17.6 °C Lake 32, Keynes Country Park · 47.7 km away15.6 °C Avon, Lucys Mill · 53.0 km away14.5 °C Brent, Hanwell · 72.4 km away15.3 °C

More measuring points: Themse

Ham & Kingston19.8 °C Wallingford17.8 °C Pangbourne17.6 °C

Frequently asked questions

Can you swim at Themse right now?
The current water temperature is 17.2 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Themse?
Currently 17.2 °C (updated continuously).

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