Sea Area Forecast
Forecast valid from: 18:00, Thursday 11 December 2025 until 18:00, Friday 12 December 2025
Small Craft Warning
South to southwest winds will reach force 6 or higher this evening (Thursday) overnight and on Friday on coasts from Mizen Head to Erris Head to Fair Head.
Gale Warning
Atlantic Swell
On Atlantic coasts
Meteorological Situation at 15:00 UTC
A cold front moves eastwards over Ireland and will clear this evening. There is a strong to gale force southerly airflow ahead of the front and a moderate to fresh northwest to southwest airflow following.
Small Craft Warning: In effect
Heavy Swell (>4m) : yes
Forecast for Irish coastal waters from Mizen Head to Erris Head to Fair Head
Wind: South to southwest force 4 or 5, increasing force 5 to 7 imminent, soon increasing force 6 or 7, later becoming southwesterly.
Weather: Rain clearing eastwards this evening. Becoming mainly fair. Well scattered showers on Friday.
Visibility: moderate or poor, increasing good as rain clears this evening, decreasing moderate or poor in any showers.
Forecast for Irish coastal waters from Fair Head to Wicklow Head to Mizen Head and for the Irish Sea
Wind: Southerly force 6 or 7 on the Irish Sea for a time this evening, otherwise, west to northwest force 2 to 4, soon gradually backing south to southwest force 3 or 4, later increasing force 4 or 5 before noon on Friday, occasionally reaching force 6 north of Howth Head in the afternoon.
Weather: Scattered showers, becoming heavier at times on Friday.
Visibility: Good, decreasing moderate or poor in showers.
Outlook for a further 24 hours until 18:00, Saturday 13 December 2025
Fresh to strong southwest winds, strongest on west and north coasts, increasing strong to gale force early on Saturday and reaching strong gale force at times on northwest coasts on Saturday. Showers becoming isolated. Rain moving in from the west on Saturday morning and spreading eastwards.
Forecast issued at: 18:00, Thursday 11 December 2025
All times are local unless specified
