Réamhaisnéis limistear na farraige
Forecast valid from: 16:00, Friday 11 September 2026 until 18:00, Saturday 12 September 2026
Small Craft Warning
South to southwest winds will reach force 6 or higher on Irish coasts from Mizen Head to Erris Head to Fair Head this evening and tonight (Friday), extending to all coasts tomorrow (Saturday).
Gale Warning
South to southwest winds will reach gale force 8 at times on Irish coasts from Loop Head to Erris Head to Malin Head.
Atlantic Swell
Developing on west and northwest coasts tonight and tomorrow Saturday.
Meteorological Situation at 15:00 UTC
Ireland lies in a moderate to fresh southwest airflow with high pressure of 1026hPa extending a ridge over the country. A depression of 1001hPa will track over the northwest of Ireland tonight generating strong to gale force southwesterly winds.
Gale Warning: In effect
Small Craft Warning: In effect
Heavy Swell (>4m) : yes
Forecast for Valentia to Slyne Head to Malin Head
Wind: Southerly force 4 or 5 increasing force 5 or 6 imminent. Soon increasing southwest force 6 or 7 and occasionally gale force 8 between Loop Head and Malin Head. Later easing southwest to west force 5 or 6, easing west force 3 or 4 by the end of the period.
Weather: Cloudy with rain imminent. Heavy and persistent at times. Chance of isolated thunderstorms. Patches of mist too.
Visibility: Reducing moderate or poor in all precipitation and mist.
Forecast for Malin Head to Howth Head to Carnsore Point and for the Irish Sea
Wind: Southerly or variable force 2 to 4. Increasing southwest force 3 or 4 imminent. Soon increasing force 5 to 7. Later easing southwest force 4 to 6 by the end of the period.
Weather: Cloudy with rain soon, heavy and persistent at times. Chance of isolated thunderstorms.
Visibility: Reducing moderate or poor in precipitation.
Forecast for Carnsore Point to Roches Point to Valentia
Wind: Westerly force 3 or 4 increasing force 4 or 5 imminent. Soon increasing southwest force 5 or 6. Later decreasing west to southwest force 4 to 6.
Weather: Cloudy with rain developing soon, heavy at times. Chance of isolated thunderstorms. Patches of mist and fog too.
Visibility: Reducing moderate or poor in all precipitation, mist and fog.
Outlook for a further 24 hours until 18:00, Sunday 13 September 2026
Moderate to fresh south to southwest winds will ease light or variable along northern coasts Sunday. Weather: Cloudy with rain and drizzle developing in the south, heavy at times on Saturday night.
Forecast issued at: 16:00, Friday 11 September 2026
All times are local unless specified
