Sea Area Forecast

Forecast valid from: 18:00, Monday 18 August 2025 until 18:00, Tuesday 19 August 2025

Small Craft Warning

Gale Warning

Nil

Meteorological Situation at 15:00 UTC

Ireland lies in a moderate easterly air-flow between and anticyclone of 1036hPa over Greenland and a shallow depression of 1015hPa near the Bay of Biscay. A frontal trough is slow-moving off the southwest coast.

Heavy Swell (>4m) : Nil

Wave Height Forecast

Forecast for Irish coastal waters from Loop Head to Rossan Point to Belfast Lough

Wind: East or variable force 3 or 4. Later backing northeast force 3 or 4.

Weather: Generally cloudy with isolated showers.

Visibility: Decreasing moderate to poor in showers, otherwise good.

Forecast for Irish coastal waters from Belfast Lough to Hook Head to Loop Head and for the Irish Sea

Wind: East to northeast force 4 or 5. Later decreasing force 3 to 5.

Weather: Fair to cloudy. Scattered showers developing in the south later.

Visibility: Decreasing moderate to poor in showers, otherwise good.

Outlook for a further 24 hours until 18:00, Wednesday 20 August 2025

Moderate to fresh northeast winds. Weather: showers in the south clearing to leave a fair conditions.

Forecast issued at: 18:00, Monday 18 August 2025

All times are local unless specified