Sea Area Forecast
Forecast valid from: 12:00, Monday 01 December 2025 until 12:00, Tuesday 02 December 2025
Small Craft Warning
Southwest winds will reach force 6 at times today (Monday) on Irish coasts from Howth Head to Mizen Head to Malin Head, extending to all Irish coasts tonight and tomorrow (Tuesday).
Gale Warning
Nil
Atlantic Swell
developing on Atlantic coasts tonight and tomorrow.
Meteorological Situation at 09:00 UTC
Low Pressure of 962hPa centred south of Iceland extends a freshening southwest air-flow over Ireland. Frontal troughs will clear eastwards today with a strong and unstable southwesterly air-flow becoming established over the country.
Small Craft Warning: In effect
Heavy Swell (>4m) : yes
Forecast for Irish coastal waters from Wicklow Head to Dungarvan to Valentia and for the Irish Sea south of Anglesey
Wind: Southwest force 6 or 7 and gusty. Veering west to southwest force 5 to 7 imminent. Later becoming southwest force 5 or 6.
Weather: Outbreaks of rain and drizzle with some areas of mist. Clear spells and scattered showers imminent, some with hail and thunder.
Visibility: Decreasing moderate to poor in precipitation.
Forecast for Irish coastal waters from Valentia to Erris Head to Fair Head
Wind: Southwest force 3 to 5. Increasing southwest to west force 5 or 6 imminent. Soon becoming southwest force 6 or 7 and gusty.
Weather: Outbreaks of rain and drizzle with some areas of mist. Clear spells and scattered showers imminent, some with hail and thunder.
Visibility: Decreasing moderate to poor in precipitation.
Forecast for Irish coastal waters from Fair Head to Carlingford Lough to Wicklow Head and for the Irish Sea north of Anglesey
Wind: Generally south to southwest force 2 to 4 but southwest 5 to 7 in the Irish Sea north of Anglesey. Soon becoming southwest to west force 5 or 6. Later becoming south to southwest force 5 or 6.
Weather: Outbreaks of rain and drizzle with some areas of mist. Clear spells and scattered showers developing soon, some with hail and thunder.
Visibility: Decreasing moderate to poor in precipitation.
Outlook for a further 24 hours until 12:00, Wednesday 03 December 2025
Fresh to strong south to southwest winds, veering westerly on Tuesday night and during Wednesday. Weather: clear spells and showers, some with hail and lightning.
Forecast issued at: 12:00, Monday 01 December 2025
All times are local unless specified
