Sea Area Forecast
Forecast valid from: 12:00, Sunday 23 November 2025 until 12:00, 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 today 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 tonight and tomorrow morning on Irish coastal waters from Howth Head to Roches Point to Rossan Point and on the Irish Sea South of Anglesey.
Atlantic Swell
Developing on northwestern coasts for a time on Sunday afternoon.
Meteorological Situation at 09:00 UTC
Low pressure of 984hPa centred approximately 100 nautical miles northwest of Bloody Foreland generates a strong to gale force southwest to west 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: West to northwest force 7 or gale force 8, occasionally reaching strong gale force 9 imminent. Soon veering north to northwest and decreasing force 6 or 7 north of Slyne Head. Later gradually becoming northerly force 5 or 6.
Weather: Cloudy to fair with widespread showers, merging to longer spells of rain at times, with a chance of hail and thunder. Later clearing southwards.
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: West to southwest force 6 or 7. Soon becoming westerly or cyclonic variable force 6 or 7, and occasionally reaching gale force 8 south of Howth Head and on the Irish Sea south of Anglesey. Later becoming northerly.
Weather: Cloudy to fair with showers, merging to longer spells of rain at times, with a slight chance of hail and thunder. Later clearing southwards.
Visibility: Good, reducing moderate or poor in precipitation.
Outlook for a further 24 hours until 12:00, Tuesday 25 November 2025
Strong to near gale force northerly winds, decreasing moderate to strong on Monday evening. Further decreasing light variable from the west on Tuesday morning. Weather: Showers or longer spells of rain, clearing southwards and becoming mostly fair with isolated showers on Monday.
Forecast issued at: 12:00, Sunday 23 November 2025
All times are local unless specified
