Celtic Sea water temperature

Celtic Sea, Crooklets · Sea/Coast

The current water temperature at Celtic Sea is 21.2 °C (as of August 28, 2026, source: official monitoring networks).

The sea lags the air by weeks: the warmest water often arrives after the warmest days. Measured buoy values show this honestly.

21.2 °C

Measured: August 28, 2026 · continuously updated

💧 Water 21.2° · ☀️ Air 16.0° · high today 17.2°

Temperature trend of recent weeks

Nearby waters

Celtic Sea, Summerleaze · 0.5 km away21.9 °C Celtic Sea, Northcott Mouth · 1.4 km away20.3 °C Celtic Sea, Sandymouth · 2.8 km away20.4 °C Celtic Sea, Widemouth Sand · 4.8 km away19.0 °C Celtic Sea, Crackington Haven Beach · 11.9 km away20.2 °C

More measuring points: Celtic Sea

Booby'S Bay22.5 °C Constantine Bay Beach22.2 °C Summerleaze21.9 °C Wherry Town21.6 °C Porthcurno Beach21.4 °C Porthcurnick Beach21.2 °C

Frequently asked questions

Can you swim at Celtic Sea right now?
The current water temperature is 21.2 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Celtic Sea?
Currently 21.2 °C (updated continuously).

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