Sea Area Forecast
Forecast valid from: 23:25, Tuesday 20 January 2026 until 00:00, Thursday 22 January 2026
Small Craft Warning
East to southeast or cyclonic variable winds will reach force 6 or higher at times throughout the period on all Irish coasts.
Gale Warning
Easterly winds will reach gale force tomorrow morning (Wednesday) on Irish coastal waters from Carnsore Point to Roches Point to Valentia.
Atlantic Swell
At times on southwest coasts tonight (Tuesday night) and on Atlantic coasts from Wednesday night.
Meteorological Situation at 21:00 UTC
Ireland lies in a strong cyclonic airflow with a complex area of low pressure to the west. Associated occlusions move over the country.
Gale Warning: In effect
Small Craft Warning: In effect
Heavy Swell (>4m) : yes
Forecast for Erris Head to Belfast Lough to Carnsore Point and for the Irish Sea
Wind: Southeast to south force 5 to 7 and gusty. Soon backing east to southeast and possibly touching gale force 8 on the Irish Sea.
Weather: Cloudy or fair with scattered showers. Cloudy with rain and mist soon.
Visibility: Moderate or poor in precipitation and mist.
Forecast for Carnsore Point to Roches Point to Valentia
Wind: South to southwest force 5 and gusty. East to southeast force 6 to gale force 8 imminent. Soon veering southerly force 3 to 5. Later veering northwest force 5 or 6 west of Dungarvan.
Weather: Rain imminent, heavy at times. Soon clearing to scattered showers. Patches of mist too.
Visibility: Moderate or poor in precipitation and mist.
Forecast for Valentia to Slyne Head to Erris Head
Wind: South to southwest force 5 or 6 and gusty. Backing east to southeast force 5 to 7 imminent. Soon backing northeast. Later backing northwest force 4 or 5.
Weather: Cloudy or fair with scattered showers. Cloudy with rain and mist soon.
Visibility: Moderate or poor in precipitation and mist.
Outlook for a further 24 hours until 00:00, Friday 23 January 2026
Mostly fresh to near gale force cyclonic winds, occasionally decreasing light to moderate. Weather: Showers or longer spells of rain. Becoming fair with isolated showers in southern areas later.
Forecast issued at: 23:25, Tuesday 20 January 2026
All times are local unless specified
