Sea Area Forecast
Forecast valid from: 06:00, Sunday 29 March 2026 until 07:00, Monday 30 March 2026
Small Craft Warning
Southwest winds, veering westerly, will increase to force 6 or higher today 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 early Sunday morning on Irish coastal waters from Slyne Head to Rossan Point to Belfast Lough.
2) Southwest winds veering westerly 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 03:00 UTC
Ireland lies in a fresh to near gale force southwest airflow, with an anticyclone of 1042hPa centred approximately 400 nautical miles to the southwest of Mizen Head and a depression of 972hPa centred to the southeast of Greenland. Frontal troughs over the northwest will move southeastwards across Ireland today.
Gale Warning: In effect
Small Craft Warning: In effect
Heavy Swell (>4m) : yes
Forecast for Slyne Head to Rossan Point to Belfast Lough
Wind: Southwesterly force 6 to gale force 8 and occasionally gusty, becoming westerly imminent. Decreasing force 5 to 7 later.
Weather: Rain, drizzle and occasional mist clearing southeastwards imminent, then cloudy to fair with scattered showers, mainly in the north. Later becoming cloudy in the west.
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 6 or 7 and gusty imminent, reaching gale force 8 on the North Irish Sea. Soon veering mostly westerly and decreasing force 4 to 6, still occasionally near gale force 7 in the northeast and occasionally reaching gale force 8 on the North Irish Sea. Decreasing westerly mostly force 4 or 5 towards the end of the period, force 6 in the northeast and on the north Irish Sea.
Weather: Cloudy with rain, drizzle and occasional mist imminent. Soon becoming mostly cloudy to fair, but cloudy with drizzle, mist and fog in the south and southwest and later becoming cloudy in the west.
Visibility: Moderate or poor in precipitation, mist and fog. Otherwise good.
Outlook for a further 24 hours until 07:00, Tuesday 31 March 2026
Wind: Mostly moderate to fresh west to northwest winds, reaching strong to near near gale force for a time in the north and northeast. Westerly winds easing mostly moderate, occasionally fresh, through Monday, backing west to southwest on Monday night. Weather: Cloudy to fair, with well scattered showers in the north. Becoming cloudy through Monday and Monday night with patchy light rain, drizzle, mist and fog spreading from the southwest.
Forecast issued at: 06:00, Sunday 29 March 2026
All times are local unless specified
