Sea Area Forecast
Forecast valid from: 12:00, Tuesday 09 December 2025 until 12:00, Wednesday 10 December 2025
Small Craft Warning
East to southeast winds, gradually veering southwesterly, will reach force 6 on all Irish coasts through the period.
Gale Warning
Southerly winds, later veering southwesterly, will reach gale force 8 or strong gale force 9 through the period on all Irish coastal waters and on the Irish Sea, increasing to storm force 10 or violent storm force 11 on Irish coastal waters from Mizen Head to Slyne Head to Malin Head.
Atlantic Swell
Yes
Meteorological Situation at 09:00 UTC
Storm Bram with a centre low of 967hPa located approximately 100 nautical miles southwest of Erris Head advects gale to storm force southeasterly winds over Ireland.
Gale Warning: In effect
Small Craft Warning: In effect
Heavy Swell (>4m) : yes
Forecast for Irish coastal waters from Mizen Head to Erris Head to Malin Head
Wind: South to southwest force 7 or gale force 8, increasing to strong gale force 9 or storm force 10. Later veering westerly for a time force 7 to gale force 8 and backing southwesterly by the end of the period.
Weather: Cloudy with outbreaks of rain and drizzle. Soon becoming fair with scattered showers, heavy at times with a chance of thunderstorms.
Visibility: Moderate or poor in precipitation, otherwise good.
Forecast for Irish coastal waters from Malin Head to Carlingford Lough to Carnsore Point and for the Irish Sea
Wind: Southeasterly force 7 or gale force 8. Veering southwesterly gale force 8 or strong gale force 9 and reaching storm force 10 imminent. Soon becoming force gale force 8 or strong gale force 9. Later decreasing southwest force 7 or gale force 8. Easing westerly force 6 or 7 by the end of the period, and occasionally gale force 8 between Malin Head and Fair Head.
Weather: Cloudy with outbreaks of rain and drizzle. Soon becoming fair with isolated showers. Some turning heavy at times with a chance of isolated thunderstorms.
Visibility: Moderate or poor in precipitation, otherwise good.
Forecast for Irish coastal waters from Carnsore Point to Roche's Point to Mizen Head
Wind: Southerly strong gale force 9 or storm force 10 and occasionally reaching violent storm force 11. Decreasing southwesterly force 7 or gale force 8 imminent. Soon easing force 6 or 7. Easing westerly force 5 or 6 by the end of the period.
Weather: Cloudy with outbreaks of rain and drizzle, becoming fair with isolated showers imminent. Heavy at times with isolated thunderstorms possible.
Visibility: Moderate or poor in precipitation, otherwise good.
Outlook for a further 24 hours until 12:00, Thursday 11 December 2025
Fresh to strong southwesterly winds, will strengthen to gale force from Wednesday evening on north, western, and southern coasts. Southerly winds will increase strong to gale force strength on north, east and southern coasts on Thursday morning. Weather: Mostly cloudy with isolated showers. Rain from the west later.
Forecast issued at: 12:00, Tuesday 09 December 2025
All times are local unless specified
