Réamhaisnéis limistear na farraige
Forecast valid from: 00:00, Saturday 06 December 2025 until 00:00, Sunday 07 December 2025
Small Craft Warning
1. Southwest winds will reach force 6 or higher at times today (Saturday) on Irish coasts from Belfast Lough to Roches Point to Rossan Point easing early tonight. 2. South to southeast winds will increase to force 6 at times early Sunday morning on Irish coasts from Valentia to Slyne Head to Erris Head.
Gale Warning
Southwest to west winds will occasionally reach gale force 8 today (Saturday) until early afternoon on Irish coastal waters from Hook Head to Mizen Head to Slyne Head.
Atlantic Swell
Increasing on Atlantic coasts overnight.
Meteorological Situation at 21:00 UTC
A slow-moving depression of 971hPa centred around 270 nautical miles northwest of Erris Head maintains an unstable fresh to gale force southerly airflow over Ireland. Associated frontal troughs are 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 Howth Head and for the North Irish Sea
Wind: South to southwest force 4 to 6. Imminent decreasing force 3 to 5, but occasionally reaching force 6 south of Strangford Lough. Later increasing southwest to west force 4 to 6, occasionally force 7 on the north Irish Sea, before decreasing southwest force 4 or 5 by the end of period.
Weather: Showers, some heavy and prolonged, becoming isolated later.
Visibility: Moderate or poor in showers, otherwise good.
Forecast for Irish coastal waters from Howth Head to Roches Point to Erris Head and for the South Irish Sea
Wind: Southwest to west force 6 to gale force 8 and gusty, but force 4 or 5 at first north of Loop Head. Gradually decreasing force 4 or 5 an backing southwest to south by the end of the period.
Weather: Showers, some heavy and prolonged, becoming isolated later.
Visibility: Moderate or poor in showers, otherwise good.
Outlook for a further 24 hours until 00:00, Monday 08 December 2025
Moderate to fresh southerly winds, increasing strong at times in western and northwestern areas early on Sunday. Winds gradually veering westerly or cyclonic for a time on Sunday and increasing strong to near gale at times. Winds backing mainly southwest to south by the end of the period. Weather; Outbreaks of rain and drizzle developing early on Sunday, gradually clearing northeastwards later followed by showers.
Forecast issued at: 00:00, Saturday 06 December 2025
All times are local unless specified
