Réamhaisnéis limistear na farraige

Forecast valid from: 00:00, Monday 01 December 2025 until 00:00, Tuesday 02 December 2025

Small Craft Warning

Southwest winds will reach force 6 at times on all Irish coasts through the period.

Gale Warning

Southwesterly winds will reach gale force 8 at times this morning (Monday morning) on Irish coastal waters from Wicklow Head to Carnsore Point to Roches Point and on the south Irish Sea.

Meteorological Situation at 21:00 UTC

A complex area of low pressure, with a centre of 970hPa 480 nautical miles southwest of Iceland, generates a mostly moderate to near gale force south to southwest airflow over Ireland. Associated weather fronts track eastwards over the country.

Gale Warning: In effect

Small Craft Warning: In effect

Heavy Swell (>4m) : Nil

Wave Height Forecast

Forecast for Irish coastal waters from Belfast Lough to Carnsore Point to Mizen Head and for the Irish Sea

Wind: South to southwest force 6 to gale force 8. Imminent decreasing southwesterly force 6 or near gale force 7 between Howth Head and Roches Point and in the south Irish sea, but decreasing mostly southwesterly or variable force 2 to 4 elsewhere. Soon reaching gale force 8 at times between Wicklow Head and Roches Point and in the south Irish sea. Later becoming southwesterly force 4 to 6 everywhere.

Weather: Widespread rain clearing eastwards followed by scattered showers, some merging into longer spells of rain at times. Mist patches too.

Visibility: Reducing moderate or poor in precipitation and mist, otherwise good.

Forecast for Irish coastal waters from Mizen Head to Erris Head to Belfast Lough

Wind: Imminent decreasing southwesterly force 4 or 5. Soon increasing force 4 to 6 south of Slyne Head. Later increasing force 5 or 6

Weather: Widespread rain clearing eastwards followed by scattered showers, some merging into longer spells of rain at times. Mist patches too.

Visibility: Reducing moderate or poor in precipitation and mist, otherwise good.

Outlook for a further 24 hours until 00:00, Wednesday 03 December 2025

Mostly moderate to strong southwest to west winds, but reaching near gale force at times in western and northwestern sea areas. Weather: Fair to cloudy with scattered showers.

Forecast issued at: 00:00, Monday 01 December 2025

All times are local unless specified