Sea Area Forecast
Forecast valid from: 06:00, Thursday 04 December 2025 until 06:00, Friday 05 December 2025
Small Craft Warning
Southerly winds veering westerly will reach force 6 or higher at times today (Thursday) on all Irish coasts, becoming confined to coasts from Mizen Head to Slyne Head to Malin Head this morning.
Gale Warning
Atlantic Swell
On Atlantic coasts on Thursday.
Meteorological Situation at 03:00 UTC
Ireland lies in a fresh to strong south to southwest airflow generated by a broad depression of 974hPa centred south of Iceland. The associated occlusion lies across eastern sea areas.
Small Craft Warning: In effect
Heavy Swell (>4m) : yes
Forecast for Irish coastal waters from Roche's Point to Slyne Head to Malin Head
Wind: West to southwest force 5 or 6, occasionally reaching force 7. Later gradually becoming southerly.
Weather: Cloudy to fair with widespread showers, some heavy with a chance of hail and isolated thunderstorms. Later becoming cloudy with outbreaks of rain and drizzle.
Visibility: Moderate or poor in precipitation, otherwise good.
Forecast for Irish coastal waters from Malin Head to Howth Head to Roche's Point and for the Irish Sea
Wind: West to northwest force 3 or 4 imminent, occasionally reaching force 5. Later becoming west to southwest force 4 or 5, reaching force 6 between Hook Head and Roches Point by the end of the period.
Weather: Cloudy with rain, occasionally turning heavy. Becoming cloudy to fair with isolated showers imminent.
Visibility: Moderate or poor in precipitation, otherwise good.
Outlook for a further 24 hours until 06:00, Saturday 06 December 2025
Fresh to near gale force southerly winds, increasing strong to gale force on Friday morning. Reaching strong gale force at times Friday afternoon. Winds veering westerly on Friday night, becoming moderate to fresh cyclonic variable in the north. Weather: Cloudy to fair with showers. Rain on Friday morning and afternoon, heavy at times with isolated thunderstorms possible. Showers on Friday night.
Forecast issued at: 06:00, Thursday 04 December 2025
All times are local unless specified
