Sea Area Forecast
Forecast valid from: 18:00, Sunday 30 November 2025 until 18:00, Monday 01 December 2025
Small Craft Warning
Southerly winds veering southwest will reach force 6 or higher on all Irish coasts for a time this evening, becoming confined to Irish coasts from Erris Head to Howth Head to Valentia overnight.
Gale Warning
1. Southerly winds will reach gale force 8 at times this evening and for a time overnight on Irish coastal waters from Strangford Lough to Wicklow Head to Roches Point and on the Irish Sea 2. Southwesterly winds will reach gale force 8 at times for a time later on the South Irish Sea.
Atlantic Swell
Increasing on Atlantic coasts Monday afternoon.
Meteorological Situation at 15:00 UTC
A deep depression of 955hPa centred around 330 Nautical miles southeast of Greenland in the North Atlantic generates a moderate to near gale force southerly airflow over Ireland. Associated active fronts will track eastwards over Ireland during the period.
Gale Warning: In effect
Small Craft Warning: In effect
Heavy Swell (>4m) : yes
Forecast for Irish coastal waters from Valentia to Rossan Point to Belfast Lough
Wind: Southerly force 6 or 7 and gusty, imminent decreasing south to southwest force 4 to 6. Further decreasing force 4 or 5 soon. Later increasing southwest to west force 5 or 6 south of Erris Head.
Weather: Rain and drizzle, clearing the northwest soon and elsewhere later with showers following. Showers may merge to longer spells of rain later. Mist patches also.
Visibility: Reducing moderate or poor in precipitation and mist, otherwise good.
Forecast for Irish coastal waters from Belfast Lough to Carnsore Point to Valentia and for the Irish Sea
Wind: South to southwest force 5 to 7 and gusty. Imminent increasing force 6 to gale force 8. Soon decreasing southwest to west or variable force 2 to 4, but maintaining force 6 or 7 between Howth Head and Roches Point and on the south Irish Sea. Gradually veering southwest to west later and increasing force 5 to 7 and gusty, reaching gale force 8 for a time on the south Irish Sea.
Weather: Rain and drizzle, clearing the northwest soon and elsewhere later with showers following. Showers may merge to longer spells of rain later. Mist patches also.
Visibility: Reducing moderate or poor in precipitation and mist, otherwise good.
Outlook for a further 24 hours until 18:00, Tuesday 02 December 2025
Mostly moderate to strong southwest to west winds, occasionally near gale force in the western and northwestern sea areas. Weather; Showers, some heavy. Isolated thunderstorms and hail possible later.
Forecast issued at: 18:00, Sunday 30 November 2025
All times are local unless specified
