Réamhaisnéis limistear na farraige
Forecast valid from: 12:00, Thursday 04 December 2025 until 12:00, Friday 05 December 2025
Small Craft Warning
1. Westerly winds will reach force 6 or higher today and tonight (Thursday) on Irish coasts from Roches Point to Slyne Head to Malin Head, becoming confined to Irish coasts from Slyne Head to Rossan Point to Malin Head overnight (early Friday). 2. Southeasterly will increase to force 6 or higher early on Friday on Irish coasts from Roches Point to Loop Head to Rossan Point extending to all Irish coasts on Friday morning.
Gale Warning
Southeast winds will increase to gale force 8 and gusty at times on Friday morning, occasionally reaching strong gale force 9, on Irish coastal waters from Howth Head to Mizen Head to Bloody Foreland.
Atlantic Swell
On Atlantic coasts.
Meteorological Situation at 09:00 UTC
Ireland lies in a moderate to strong westerly airflow generated by a broad and complex depression in North Atlantic. A small depression of 978hPa centred around 190 nautical miles northwest of Erris Head will remain relatively stationary today whilst weakening. 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 Carnsore Point to Mizen Head to Slyne Head
Wind: Westerly force 4 to 6. Imminent increasing force 5 to 7 and gusty north of Mizen Head. Soon decreasing west to southwest force 4 or 5. Later backing southeast and increasing force 7 to strong gale force 9 and gusty. Veering southwest force 6 to gale force 8 between Roches Point and Loop Head by the end of the period.
Weather: Fair to cloudy with scattered showers today. Cloudy with rain turning heavy a times later.
Visibility: Moderate or poor in precipitation, otherwise good.
Forecast for Irish coastal waters from Slyne Head to Rossan Point to Fair Head
Wind: Southwest force 4 to 6. Imminent increasing southerly or cyclonic force 5 to 7 and gusty west of Malin Head. Soon becoming mainly southwest force 4 to 6. Later backing southeast and increasing force 6 to gale force 8 and gusty, occasionally reaching strong gale force 9 south of Rossan Point.
Weather: Fair to cloudy with scattered showers, heavy with a chance of isolated thunderstorms and hail. Rain spreading from the southwest towards the end of the period.
Visibility: Moderate or poor in precipitation, otherwise good.
Forecast for Irish coastal waters from Fair Head to Carlingford Lough to Carnsore Point and for the Irish Sea
Wind: Westerly force 4 or 5. Soon backing southwest force 3 to 5. Gradually backing southeast later and increasing force 6 to gale force 8 and gusty by the end of the period.
Weather: Mostly fair today. Isolated showers later. Turning cloudy with rain spreading from the southwest towards the end of the period.
Visibility: Moderate or poor in precipitation, otherwise good.
Outlook for a further 24 hours until 12:00, Saturday 06 December 2025
Strong to gale force southerly winds, reaching strong gale force in the east on Friday afternoon. Winds becoming southwest everywhere on Friday night and decreasing moderate to fresh in the north and northwest but continuing strong to gale force elsewhere. Weather; Showers on Saturday, some heavy with isolated thunderstorms possible. Rain and drizzle spreading from the southwest on Saturday night followed by isolated showers.
Forecast issued at: 12:00, Thursday 04 December 2025
All times are local unless specified
