BrrChecker

Irish Sea water temperature

Irish Sea, Carne Beach · Sea/Coast

The current water temperature at Irish Sea is 15.5 °C (as of October 15, 2026, source: Commissioners of Irish Lights (EPA-Badestelle, Wert der Boje in der Bucht)).

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

15.5 °C
Measured: October 15, 2026 · continuously updated
💧 Water 15.5° · ☀️ Air 13.2° · high today 16.4°
Temperature trend of recent weeks

Water quality

Official EPA rating: excellent

Measurement series & statistics

This measurement series includes 725 data points since September 15, 2026.

Lowest recorded value: 15.1 °C on October 11, 2026 · highest value: 17.5 °C on September 15, 2026.

In October, temperatures have ranged between 15.1 °C and 16.4 °C.

The current value is 0.4 °C below the October average of this series.

Nearby waters

Lady's Island Lake, Lady's Island · 2.7 km away15.2 °CIrish Sea, Rosslare (Splaugh-Boje) · 6.4 km away15.5 °CCeltic Sea, Carnsore Point (Barrels-Boje) · 6.8 km away15.7 °CLough Tacumshin, Sigginstown · 7.2 km away15.2 °CIrish Sea, Rosslare · 8.6 km away15.5 °C

More measuring points: Irish Sea

Cleveleys at Cleveleyswyre Mbc18.6 °CFormby at Formbysefton Mbc17.8 °CSouthport at Southportsefton Mbc17.2 °CAllonby at West Windsallerdale Mbc17.1 °CAinsdale at Ainsdalesefton Mbc16.6 °CSt Annes North at Starr Hills16.5 °C

Frequently asked questions

Can you swim at Irish Sea right now?
The current water temperature is 15.5 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Irish Sea?
Currently 15.5 °C (updated continuously).

How warm is at Irish Sea in October?
In October, the water temperature recently averaged 15.9 °C.

How is the water quality at Irish Sea?
The official classification is: excellent.

Open in the BrrChecker app

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