Sea Area Forecast
Forecast valid from: 18:00, Friday 19 December 2025 until 18:00, Saturday 20 December 2025
Small Craft Warning
South to southwest winds will reach force 6 or higher on all Irish coasts throughout the period.
Gale Warning
Southeast to south winds will reach gale force tonight (Friday night) on Irish coastal waters from Roches Point to Loop Head to Erris Head, extending to Irish coastal waters from Howth Head to Mizen Head to Rossan Point through tomorrow.
Atlantic Swell
On Atlantic coasts.
Meteorological Situation at 15:00 UTC
A depression of 980hPa centred southeast of Iceland generates a fresh to strong southwesterly airflow over Ireland.
Gale Warning: In effect
Small Craft Warning: In effect
Heavy Swell (>4m) : yes
Forecast for Irish coastal waters from Dungarvan to Valentia to Rossan Point
Wind: Southwest force 5 or 6, increasing south force 6 or 7 and gusty imminent. Soon increasing southeast force 7 or gale force 8 and gusty. Later veering west force 3 to 5.
Weather: Fair to cloudy with scattered showers. Cloudy with outbreaks of rain developing in the southwest soon, slowly moving northeastwards later.
Visibility: Mainly good but decreasing moderate or poor in precipitation.
Forecast for Irish coastal waters from Rossan Point to Carlingford Lough to Dungarvan and for the Irish Sea
Wind: Southwest force 5 or 6. Soon increasing south force 6 or 7. Later increasing southeast to south force 7 or gale force 8 and gusty.
Weather: Fair to cloudy with scattered showers. Cloudy later with outbreaks of rain spreading from the southwest.
Visibility: Mainly good but decreasing moderate or poor in precipitation.
Outlook for a further 24 hours until 18:00, Sunday 21 December 2025
Strong to gale force southeast to south winds, decreasing moderate to strong in the north and east on Sunday, with light to moderate and at times fresh southeast or variable winds developing elsewhere. Weather: Rain moving northeast over all areas, lingering in the northeast but clearing to showers elsewhere.
Forecast issued at: 18:00, Friday 19 December 2025
All times are local unless specified
