Sea Area Forecast
Forecast valid from: 18:00, Tuesday 09 December 2025 until 18:00, Wednesday 10 December 2025
Small Craft Warning
West to Southwest winds will reach force 6 or higher this evening and early tonight and during Wednesday on all Irish coasts.
Gale Warning
1. West to southwest winds will reach gale force 8 or 9 this evening and early tonight on Irish coastal waters from Loop Head to Fair Head to Carnsore Point and on the Irish Sea, occasionally touching storm force 10 for a time on Irish coastal waters from Erris Head to Malin Head to Carlingford Lough. 2. Southwest winds will reach gale force 8 at times overnight and on Wednesday on Irish coastal waters from Slyne Head to Rossan Point to Fair Head.
Atlantic Swell
On southern and western coasts this evening and tonight. Increasing along Atlantic coasts during Wednesday.
Meteorological Situation at 15:00 UTC
A deepening depression of 960hPa, Storm Bram, centred around 200 nautical miles northwest of Erris Head is generating a near gale to storm force south to southwest airflow 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 Fair Head
Wind: Imminent decreasing west to southwest force 6 to gale force 8. Later backing southwest to south.
Weather: Rain in the north will continue to clear northwards early tonight, followed by scattered showers, some heavy with isolated thunderstorms possible. Showers will become confined to the northwest later.
Visibility: Reducing moderate or poor in precipitation, otherwise good.
Forecast for Irish coastal waters from Fair Head to Carnsore Point to Mizen Head and for the Irish Sea
Wind: Imminent decreasing west to southwest force 6 or 7 and gusty. Later decreasing southwest force 5 or 6 for a time before increasing force 6 or 7 again at the end of the period.
Weather: Rain in the north will continue to clear northwards early tonight, followed by scattered showers, some heavy with isolated thunderstorms possible. Showers will become confined to the northwest later.
Visibility: Reducing moderate or poor in precipitation, otherwise good.
Outlook for a further 24 hours until 18:00, Thursday 11 December 2025
Strong to gale force south to southwest winds, will increase to strong gale at times along Atlantic coasts early on Thursday. Winds will gradually veer moderate to strong southwest to west from the west later, but will remain strong to gale force southerly in the east until Thursday night. Weather; Mainly fair to cloudy with rain spreading from the Atlantic later followed by isolated showers.
Forecast issued at: 18:00, Tuesday 09 December 2025
All times are local unless specified
