Sea Area Forecast
Forecast valid from: 00:00, Sunday 23 November 2025 until 00:00, Monday 24 November 2025
Small Craft Warning
Southerly winds becoming westerly or cyclonic variable will reach force 6 or higher at times on all Irish coasts throughout the period.
Gale Warning
1. Westerly winds will reach gale force 8 or strong gale force 9 at times later tonight (Saturday night) and at times Sunday on Irish coastal waters from Valentia to Erris Head to Malin Head. 2. West to northwest winds will reach gale force 8 or strong gale force 9 at times Sunday evening and Sunday night on Irish coastal waters from Belfast Lough to Dungarvan to Rossan Point and on the Irish Sea.
Atlantic Swell
Developing on northwestern coasts for a time on Sunday afternoon.
Meteorological Situation at 21:00 UTC
Low pressure of 982hPa centred approximately 230nm northwest of Erris Head generates a fresh to near gale force southwesterly airflow over Ireland.
Gale Warning: In effect
Small Craft Warning: In effect
Heavy Swell (>4m) : yes
Forecast for Irish coastal waters from Valentia to Erris Head to Malin Head
Wind: Westerly force 6 or 7, and occasionally gale force 8. Soon increasing force 7 or gale force 8, and occasionally reaching strong gale force 9 north of Erris Head. Later veering north to northwest and decreasing force 5 or 6 north of Erris Head.
Weather: Rain, heavy at times soon clearing to showers. Some hail or thunder possible further north.
Visibility: Good, reducing moderate or poor in precipitation.
Forecast for Irish coastal waters from Malin Head to Carnsore Point to Valentia and for the Irish Sea
Wind: Increasing westerly force 5 to 7 imminent. Later increasing westerly or cyclonic variable force 6 or 7 and occasionally reaching gale force 8.
Weather: Widespread showers with longer spells of rain in the north and northwest, turning heavy at times, with a chance of hail and thunder.
Visibility: Good, reducing moderate or poor in precipitation.
Outlook for a further 24 hours until 00:00, Tuesday 25 November 2025
Strong to gale force west to northwest winds, becoming northerly and decreasing strong to near gale force Monday morning, further decreasing moderate to strong Monday night. Weather: Showers or longer spells of rain, heavy at times. Becoming mostly fair with isolated showers by Monday afternoon.
Forecast issued at: 00:00, Sunday 23 November 2025
All times are local unless specified
