Sea Area Forecast
Forecast valid from: 00:00, Saturday 17 January 2026 until 00:00, Sunday 18 January 2026
Small Craft Warning
South to southeast winds will reach force 6 at times tonight (Friday night) on Irish coasts from Malin Head to Strangford Lough to Carnsore Point.
Gale Warning
Nil
Atlantic Swell
On southwestern coasts tonight (Friday night).
Meteorological Situation at 21:00 UTC
A mature depression of 999hPa, centred over the southwest of Ireland, extends a moderate to strong cyclonic airflow over the country.
Small Craft Warning: In effect
Heavy Swell (>4m) : yes
Forecast for Irish coastal waters from Malin Head to Howth Head to Hook Head and for the Irish Sea
Wind: Decreasing southeasterly force 4 or 5 imminent, occasionally force 6.
Weather: Cloudy to fair with scattered showers, heavy at times with a chance of hail and isolated thunderstorms. Isolated showers later.
Visibility: Good, decreasing moderate or poor in precipitation.
Forecast for Irish coastal waters from Hook Head to Loop Head to Malin Head
Wind: Cyclonic variable force 3 or 4, occasionally force 5. Soon decreasing northerly or variable force 2 to 4. Later becoming southeasterly or variable.
Weather: Cloudy to fair with well scattered showers, heavy at times with a chance of hail and isolated thunderstorms. Isolated showers later. Mist and fog patches.
Visibility: Good, decreasing moderate or poor in precipitation, mist and fog.
Outlook for a further 24 hours until 00:00, Monday 19 January 2026
South or southeast winds increasing moderate to fresh in all areas through Sunday morning. Winds will increasing mostly fresh or strong through Sunday afternoon and evening, reaching near gale force at times in the evening and night in the northwest, west and southwest. Weather: Well scattered showers along with mist and fog patches. Outbreaks of rain in Atlantic areas towards Sunday evening, slowly extending eastwards.
Forecast issued at: 00:00, Saturday 17 January 2026
All times are local unless specified
