Réamhaisnéis limistear na farraige
Forecast valid from: 18:00, Monday 08 December 2025 until 18:00, Tuesday 09 December 2025
Small Craft Warning
1. Southwest winds will reach force 6 at times on all Irish coasts this evening (Monday). 2. East to southeast winds will reach force 6 or higher on all Irish coasts tonight (Monday night).
Gale Warning
Southerly winds, later veering westerly, will reach gale force 8 or strong gale force 9 during Tuesday for all Irish coastal waters and the Irish Sea, increasing to storm force 10 to violent storm force 11 on Irish coastal waters from Mizen Head to Slyne Head to Malin Head from Tuesday morning and during the afternoon.
Atlantic Swell
On Atlantic coasts.
Meteorological Situation at 15:00 UTC
A broad and complex area of low pressure over the mid-Atlantic with multiple centres, generates a fresh to strong southerly airflow across Ireland. A low centre to the south of the low pressure region will intensify and track towards Ireland later tonight and during Tuesday, evolving into Storm Bram.
Gale Warning: In effect
Small Craft Warning: In effect
Heavy Swell (>4m) : yes
Forecast for Irish coastal waters from Howth Head to Mizen Head to Erris Head and for the south Irish Sea
Wind: South to southeast force 4 to 6. Soon increasing southerly force 7 or gale force 8. Later increasing south to southwest gale force 8 or strong gale force 9, reaching storm force 10 and possibly violent storm force 11 between Mizen Head and Erris Head. Decreasing southwesterly force 7 or gale force 8 by the end of the period.
Weather: Cloudy with scattered showers and isolated thunderstorms. Patches of mist also. Widespread rain developing imminent, with a chance of thunderstorms. Later clearing to showers with a continuing chance of thunderstorms.
Visibility: Decreasing moderate or poor in precipitation, otherwise good.
Forecast for Irish coastal waters from Erris Head to Malin Head to Howth Head and for the north Irish Sea
Wind: Southerly force 4 to 6. Soon increasing east to southeast force 6 or 7. Later increasing southerly gale force 8 or strong gale force 9, reaching storm force 10 and possibly violent storm force 11 between Erris Head and Fair Head.
Weather: Cloudy to fair with scattered showers and isolated thunderstorms. Patches of mist also. Widespread rain developing soon, with a chance of thunderstorms.
Visibility: Decreasing moderate or poor in precipitation, otherwise good.
Outlook for a further 24 hours until 18:00, Wednesday 10 December 2025
Gale to storm force, and possible violent storm force, southwesterly winds will decrease strong to gale force on Tuesday night. Weather: Widespread rain, becoming cloudy to fair on Tuesday night with showers, and thunderstorms possible.
Forecast issued at: 18:00, Monday 08 December 2025
All times are local unless specified
