Sea Area Forecast
Forecast valid from: 06:00, Monday 12 January 2026 until 06:00, Tuesday 13 January 2026
Small Craft Warning
1. Southwest winds will reach force 6 or higher this morning (Monday) on all Irish coasts, becoming confined to coasts from Belfast Lough to Hook Head to Slyne Head this afternoon and evening. 2. Northwest to north winds will reach force 6 tonight (Monday night) on Irish coasts from Roches Point to Loop Head to Rossan Point.
Gale Warning
Nil
Atlantic Swell
Heavy swell developing on Atlantic coasts on Monday.
Meteorological Situation at 03:00 UTC
Ireland lies in a very strong southwesterly airflow with a depression of 964 hPa to the northwest of Scotland. Showery troughs are embedded in the flow.
Small Craft Warning: In effect
Heavy Swell (>4m) : yes
Forecast for Irish coastal waters from Erris Head to Bloody Foreland to Fair Head
Wind: Southwest force 6 or 7 and gusty. Imminently decreasing force 4 to 6. Soon veering west to northwest force 3 to 5. Later increasing mainly force 4 or 5 and gusty, occasionally increasing force 6.
Weather: Cloudy to fair with scattered showers and patches of mist. Chance of isolated thunderstorms. Later cloudy with outbreaks of rain.
Visibility: Mostly good but decreasing moderate or poor in precipitation and mist.
Forecast for Irish coastal waters from Fair Head to Wicklow Head to Mizen Head and for the Irish Sea
Wind: Southwest force 5 or 6 and gusty. Soon decreasing force 4 to 6. Veering northwest to north to the west of Hook Head towards the end of the period.
Weather: Cloudy to fair with scattered showers and patches of mist. Later cloudy with outbreaks of rain.
Visibility: Mostly good but decreasing moderate or poor in precipitation and mist.
Forecast for Irish coastal waters from Mizen Head to Loop Head to Erris Head
Wind: Southwest force 5 or 6 and gusty. Soon becoming variable force 2 to 4 north of Slyne Head. Later becoming northwest to north force 4 to 6.
Weather: Cloudy to fair with scattered showers and patches of mist. Chance of isolated thunderstorms. Later cloudy with outbreaks of rain.
Visibility: Mostly good but decreasing moderate or poor in precipitation and mist.
Outlook for a further 24 hours until 06:00, Wednesday 14 January 2026
Mainly moderate to strong cyclonic winds, becoming northwesterly Tuesday morning and backing west to northwest during Tuesday. Strong to near gale force southerly winds developing in the west Tuesday night. Weather: Rain gradually clearing eastwards, with fair conditions and isolated showers following from the west. Rain in the west at the end of the period.
Forecast issued at: 06:00, Monday 12 January 2026
All times are local unless specified
