Sea Area Forecast
Forecast valid from: 00:00, Sunday 19 October 2025 until 00:00, Monday 20 October 2025
Small Craft Warning
Southerly winds will reach force 6 or higher at times on all Irish coasts during the period.
Gale Warning
Southeasterly winds will reach gale force 8 at times overnight and for a time on Sunday morning on Irish coastal waters from Bloody Foreland to Malin Head to Fair Head.
Atlantic Swell
Increasing on southwestern coasts on Sunday night.
Meteorological Situation at 21:00 UTC
Low Pressure of 977hPa centred approximately 300 nautical miles west of Valentia extends a strong to gale force southeasterly air-flow over Ireland, with active frontal troughs embedded in the flow.
Gale Warning: In effect
Small Craft Warning: In effect
Heavy Swell (>4m) : yes
Forecast for Irish coastal waters from Erris Head to Malin Head to Belfast Lough
Wind: Southeast force 6 to gale force 8. Soon decreasing force 5 to 7 and gusty, but mainly southerly force 3 to 5 west of Bloody Foreland. Gradually decreasing east to southeast or variable force 2 to 4 later.
Weather: Rain with isolated thunderstorms possible gradually clearing eastwards by Sunday afternoon followed by isolated showers.
Visibility: Moderate or poor in precipitation.
Forecast for Irish coastal waters from Belfast Lough to Wicklow Head to Roches Point and for the Irish Sea
Wind: Southeast force 6 or 7 and gusty. Soon veering southwest force 4 or 5 south of Wicklow Head with southeast force 5 to 7 and gusty elsewhere. Later becoming mainly southerly force 4 to 6.
Weather: Rain with isolated thunderstorms possible gradually clearing eastwards by Sunday afternoon followed by isolated showers. Showers becoming scattered towards the end of the period.
Visibility: Moderate or poor in precipitation.
Forecast for Irish coastal waters from Roches Point to Valentia to Erris Head
Wind: Southeast force 5 to 7 and gusty. Imminent decreasing south to southwest force 4 or 5, occasionally force 6. Later increasing southerly force 4 to 6. Becoming cyclonic variable force 3 or 4 locally between Mizen Head and Loop Head towards the end of the period.
Weather: Rain with isolated thunderstorms possible, clearing eastwards imminently followed by showers, some heavy with isolated thunderstorms possible later.
Visibility: Moderate or poor in precipitation.
Outlook for a further 24 hours until 00:00, Tuesday 21 October 2025
Mostly moderate to fresh cyclonic variable winds, becoming mainly northwesterly during Monday. Winds will be strong at times in southern sea areas. Weather; Showers, some heavy with isolated thunderstorms possible in the south and east, easing by the end of the period.
Forecast issued at: 00:00, Sunday 19 October 2025
All times are local unless specified
