Sea Area Forecast
Forecast valid from: 23:00, Saturday 26 September 2026 until 00:00, Monday 28 September 2026
Small Craft Warning
South or southeast winds will reach force 6 or higher on all Irish coasts tonight (Saturday night), veering westerly later tonight, tomorrow (Sunday) morning and early afternoon, becoming confined to northern coasts from later in the afternoon and continuing for a time there in the evening.
Gale Warning
Southeast to south or cyclonic variable winds, will reach gale force 8 at times on Sunday morning and early afternoon on Irish coastal waters from Fair Head to Wicklow Head to Mizen Head and on the Irish Sea.
Meteorological Situation at 21:00 UTC
Ireland lies in a fresh to near gale force southerly airflow, with low pressure of 985hPa centred to the south of Iceland and a developing area of low pressure of 1010hPa centred 230 nautical miles to the southwest of Valentia. Frontal troughs approach Ireland from the west and south.
Gale Warning: In effect
Small Craft Warning: In effect
Heavy Swell (>4m) : No
Forecast for Carnsore Point to Roches Point to Mizen Head
Wind: Increasing southeasterly or cyclonic variable, force 6 to gale force 8 and occasionally gusty imminent. Soon veering westerly and decreasing force 4 to 6. Later decreasing west to southwest force 3 or 4.
Weather: Cloudy with heavy rain, possible thunderstorms and occasional mist. Soon becoming cloudy to fair with isolated showers.
Visibility: Decreasing moderate to poor in precipitation and mist. Otherwise good.
Forecast for Mizen Head to Loop Head to Rossan Point
Wind: Southerly force 5 to 7 and occasionally gusty, veering mostly westerly imminent and decreasing force 4 or 5. Soon increasing force 5 or 6 and occasionally gusty. Later decreasing mostly force 4 or 5, occasionally force 6 in the northwest and backing southwesterly.
Weather: Cloudy with rain imminent, heavy at times, and possible thunderstorms. Isolated mist. Soon cloudy to fair with well scattered showers. Later scattered showers, some heavy in the northwest.
Visibility: Decreasing moderate to poor in precipitation and mist. Otherwise good.
Forecast for Rossan Point to Strangford Lough to Carnsore Point and for the Irish Sea
Wind: Increasing south or southeast force 5 or 6 imminent, occasionally force 7 in the northwest and in the southeast. Soon increasing force 6 or 7, reaching gale force 8 between Fair Head and Carnsore Point and on the Irish Sea. Soon veering west to southwest west of Fair Head and decreasing force 4 or 5. Later veering westerly and decreasing mostly force 4 or 5.
Weather: Becoming cloudy imminent with outbreaks of rain. Soon heavy rain, possible thunderstorms and isolated mist. Later becoming cloudy to fair with well scattered showers, mainly in the north and northeast, some heavy.
Visibility: Decreasing moderate to poor in precipitation and mist. Otherwise good.
Outlook for a further 24 hours until 00:00, Tuesday 29 September 2026
Wind: Moderate to fresh southwest to west winds, backing southerly on Sunday night and easing light to moderate in the east and south. Further backing southeasterly through Monday and increasing moderate to fresh, strong in western sea areas. Further increasing fresh to strong early on Monday night, reaching near gale force in western sea areas. Weather: Cloudy to fair with well scattered showers, mainly in the west and north.
Forecast issued at: 23:00, Saturday 26 September 2026
All times are local unless specified
