Sea Area Forecast
Forecast valid from: 12:00, Saturday 06 December 2025 until 12:00, Sunday 07 December 2025
Small Craft Warning
1. West to southwest winds will reach force 6 at times this afternoon and evening (Saturday) on Irish coasts from Belfast Lough to Roches Point to Rossan Point 2. Southeasterly winds, veering westerly, will reach force 6 at times early tomorrow (Sunday) on Irish coasts from Valentia to Slyne Head to Erris Head. 3. Southeasterly winds will reach force 6 at times tomorrow morning (Sunday) on Irish coasts from Malin Head to Carlingford Lough to Wicklow Head.
Gale Warning
Nil
Atlantic Swell
On southwestern, western and northwestern coasts.
Meteorological Situation at 09:00 UTC
A slow-moving depression of 972hPa centred approximately 280 nautical miles northwest of Erris Head generates a west to southwest airflow over Ireland, strong to near gale force in the west and south but moderate to strong in the north and east. Associated frontal troughs are embedded in the flow.
Small Craft Warning: In effect
Heavy Swell (>4m) : yes
Forecast for Irish coastal waters from Carnsore Point to Valentia to Rossan Point
Wind: Decreasing southwesterly force 4 to 6 imminent. Soon decreasing mostly southerly force 4 or 5. Later backing southeasterly, and reaching force 6 at times, before veering westerly by the end of the period.
Weather: Scattered showers, some merging to longer spells of rain, but soon becoming more isolated. Outbreaks of rain and drizzle spreading from the west later.
Visibility: Decreasing moderate or poor in precipitation, otherwise good.
Forecast for Irish coastal waters from Rossan Point to Malin Head to Belfast Lough
Wind: Southwesterly force 3 or 4. Soon increasing force 4 or 5. Later backing southeasterly and increasing force 4 to 6 by the end of the period.
Weather: Scattered showers, some merging to longer spells of rain, but soon becoming more isolated. Outbreaks of rain and drizzle spreading from the west later.
Visibility: Decreasing moderate or poor in precipitation, otherwise good.
Forecast for Irish coastal waters from Belfast Lough to Howth Head to Carnsore Point and for the Irish Sea
Wind: Southwesterly force 5 or 6, occasionally touching near gale force 7, imminent. Soon decreasing force 4 or 5. Later decreasing force 3 or 4 and backing southeasterly, before increasing force 4 to 6 by the end of the period.
Weather: Scattered showers, merging to longer spells of rain, but soon becoming more isolated. Outbreaks of rain and drizzle spreading from the west by the end of the period.
Visibility: Decreasing moderate or poor in precipitation, otherwise good.
Outlook for a further 24 hours until 12:00, Monday 08 December 2025
Moderate to fresh west to southwest winds in the northwest, west and south will increase fresh to strong or near gale force later on Sunday. Mostly fresh to strong or near gale force southeasterly winds in the east and northeast will veer southwesterly through Sunday. Weather: Rain and drizzle clearing northeastwards through Sunday, followed by scattered showers, some of which could be heavy and with a chance of thunder.
Forecast issued at: 12:00, Saturday 06 December 2025
All times are local unless specified
