Irish Sea water temperature

Irish Sea, St Annes North at Starr Hills · Sea/Coast

The current water temperature at Irish Sea is 16.5 °C (as of September 9, 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.

16.5 °C

Measured: September 9, 2026 · continuously updated

💧 Water 16.5° · ☀️ Air 14.6° · high today 15.8°

Temperature trend of recent weeks

Nearby waters

Irish Sea, St.annes at St.annes Pierfylde Mbc · 1.4 km away16.4 °C Irish Sea, Blackpool South at Pleasure Beach · 3.5 km away16.3 °C Irish Sea, Blackpool Central at St Chad'S Road · 4.8 km away17.0 °C Irish Sea, Blackpool · 6.5 km away16.0 °C Irish Sea, Bispham at Bisphamblackpool Mbc · 9.9 km away16.4 °C

More measuring points: Irish Sea

Cleveleys at Cleveleyswyre Mbc18.6 °C Formby at Formbysefton Mbc17.8 °C Liverpool Bay17.1 °C Blackpool Central at St Chad'S Road17.0 °C Bispham at Bisphamblackpool Mbc16.4 °C Llandudno16.4 °C

Frequently asked questions

Can you swim at Irish Sea right now?
The current water temperature is 16.5 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Irish Sea?
Currently 16.5 °C (updated continuously).

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