Sea Area Forecast
Forecast valid from: 00:00, Monday 01 December 2025 until 00:00, Tuesday 02 December 2025
Small Craft Warning
1. South to southwest winds will reach force 6 at times tonight (Sunday night) on Irish coasts from Bloody Foreland to Howth Head to Valentia, gradually becoming confined to Irish coasts from Wicklow Head to Carnsore Point to Dungarvan by morning. 2. Southwest to west winds will reach force 6 at times tomorrow (Monday) on all Irish coasts.
Gale Warning
1. Southerly winds will reach gale force 8 at times early tonight (Sunday night) on Irish coastal waters from Strangford Lough to Howth Head to Carnsore Point and on the Irish Sea 2. 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
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
