Réamhaisnéis limistear na farraige
Forecast valid from: 23:00, Saturday 28 March 2026 until 01:00, Monday 30 March 2026
Small Craft Warning
Southwest winds, veering westerly, will increase to force 6 or higher tonight (Saturday night) and for a time tomorrow on all Irish coasts, becoming confined to Irish coasts from Slyne Head to Rossan Point to Strangford Lough by Sunday night.
Gale Warning
1) Southwest winds will increase to gale force 8 at times tonight (Saturday night) and early Sunday morning on Irish coastal waters from Slyne Head to Rossan Point to Belfast Lough.
2) Westerly winds will increase to gale force 8 at times later Sunday morning, afternoon and evening on Irish coastal waters from Rossan Point to Malin Head to Belfast Lough and on the Irish Sea north of Anglesey
Atlantic Swell
On Atlantic coasts from Sunday afternoon.
Meteorological Situation at 21:00 UTC
Ireland lies in a mostly moderate to fresh west to southwest airflow, with an anticyclone of 1042hPa centred approximately 400 nautical miles to the southwest of Mizen Head and a depression of 967hPa centred to the south-east of Greenland. A frontal system approaches from the north-west and will cross the country tonight and tomorrow.
Gale Warning: In effect
Small Craft Warning: In effect
Heavy Swell (>4m) : yes
Forecast for Slyne Head to Rossan Point to Belfast Lough
Wind: Increasing southwesterly force 6 to gale force 8 and occasionally gusty imminent. Soon westerly. Decreasing force 5 to 7 later.
Weather: Cloudy with rain, drizzle and occasional mist imminent. Soon cloudy to fair with scattered showers, mainly in the north.
Visibility: Moderate or poor in precipitation or mist. Otherwise good.
Forecast for Belfast Lough to Roches Point to Slyne Head and for the Irish Sea
Wind: Increasing southwesterly force 5 or 6 and occasionally gusty imminent. Soon increasing force 6 or 7 and gusty. Later westerly and decreasing mostly force 4 or 5 towards the end of the period, occasionally force 6.
Weather: Becoming cloudy imminent with rain, drizzle and occasional mist soon. Later becoming cloudy to fair, with isolated drizzle and mist in the southwest.
Visibility: Moderate or poor in precipitation or mist. Otherwise good.
Outlook for a further 24 hours until 01:00, Tuesday 31 March 2026
Wind: Moderate to strong west to northwest winds, reaching near gale force for a time in the north, easing mostly moderate to fresh by Monday morning, still strong in the north. Further easing mostly moderate, occasionally fresh, through Monday. Weather: Cloudy to fair, with scattered showers in the north. Becoming mostly cloudy through Monday with patchy light rain, drizzle, mist and fog spreading from the southwest.
Forecast issued at: 23:00, Saturday 28 March 2026
All times are local unless specified
