Réamhaisnéis limistear na farraige
Forecast valid from: 00:00, Tuesday 29 September 2026 until 00:00, Wednesday 30 September 2026
Small Craft Warning
Southeasterly winds will increase to force 6 or higher overnight on all Irish Coasts.
Gale Warning
Southeasterly winds will reach gale force 8 at times Tuesday morning on Irish coastal waters from Roches Point to Erris Head to Belfast Lough extending to all Irish coastal waters and the Irish Sea later, reaching strong gale force 9 at times.
Atlantic Swell
HIGH TIDE ADVISORY IN EFFECT
Meteorological Situation at 21:00 UTC
Ireland lies in a strengthening southeasterly airflow with high pressure of 1025hPa centred in the North Sea and a complex and elongated area of low pressure of 983hPa centred in the Atlantic.
Gale Warning: In effect
Small Craft Warning: In effect
Heavy Swell (>4m) : yes
Forecast for Roches Point to Erris Head to Belfast Lough
Wind: Southeast force 5 to 7 and gusty imminent. Soon increasing force 6 to gale force 8 and gusty. Later increasing force 7 to strong gale force 9 and gusty for a time before veering southerly and easing force 5 to 7 and gusty by the end of the period, but continuing to reach gale force 8 at times east of Malin Head.
Weather: Fair at first, but cloud increasing from the south overnight with rain, drizzle and mist developing. More persistent rain will spread from the southwest later followed by showers.
Visibility: Reducing moderate or poor in precipitation and mist.
Forecast for Belfast Lough to Wicklow Head to Roches Point and for the Irish Sea
Wind: Southeast force 5 or 6 and gusty imminent. Soon increasing force 5 to 7 and gusty. Later increasing force 6 to gale force 8 and gusty. Veering south to southwest force 4 to 6 west of Carnsore Point towards the end of the period.
Weather: Fair at first but cloud soon increasing from the south with rain, drizzle and mist developing. More persistent rain will spread from the southwest later.
Visibility: Reducing moderate or poor in precipitation and mist.
Outlook for a further 24 hours until 00:00, Thursday 01 October 2026
Fresh to gale force southerly winds easing fresh to strong or near gale by Wednesday morning. Winds veering moderate to strong south to southwest by Wednesday evening. Weather; Remaining rain clearing eastwards on Wednesday night followed by showers, some heavy with thunderstorms possible.
Forecast issued at: 00:00, Tuesday 29 September 2026
All times are local unless specified
