Sea Area Forecast
Forecast valid from: 17:00, Sunday 30 August 2026 until 18:00, Monday 31 August 2026
Small Craft Warning
West to northwest winds will reach force 6 at times this evening on Irish coasts from Carnsore Point to Valentia to Rossan Point, extending to all Irish coasts tonight (Sunday), becoming mostly confined to northeastern coasts by early afternoon tomorrow (Monday)
Gale Warning
Nil.
Atlantic Swell
No.
Meteorological Situation at 15:00 UTC
Ireland lies in a mostly light to fresh, occasionally strong, cyclonic variable airflow, generated by a depression of 1000hpa centred over Ireland. Frontal troughs are embedded in the flow.
Small Craft Warning: In effect
Heavy Swell (>4m) : yes
Forecast for Carnsore Point to Loop Head to Rossan Point
Wind: Veering northwesterly imminent and increasing force 5 or 6 and occasionally gusty. Later backing west to southwest and decreasing force 4 or 5.
Weather: Cloudy to fair, with scattered heavy showers, widespread in the south. Isolated thunderstorms. Showers becoming isolated soon. Towards the end of the period becoming mostly cloudy in the west with scattered showers.
Visibility: Good. Decreasing moderate to poor in showers.
Forecast for Rossan Point to Malin Head to Carlingford Lough
Wind: Cyclonic variable force 2 to 4, occasionally force 5. Soon increasing west to northwest force 4 to 6. Later decreasing force 4 or 5 and backing west to southwest.
Weather: Cloudy to fair, with widespread heavy showers and isolated thunderstorms. Showers becoming isolated soon. Towards the end of the period becoming mostly cloudy in the northwest with scattered showers.
Visibility: Good. Decreasing moderate to poor in showers.
Forecast for Carlingford Lough to Howth Head to Carnsore Point and for the Irish Sea
Wind: South to southwest force 4 or 5, veering mainly westerly force 3 to 5 imminent. Soon northwesterly force 5 or 6. Later decreasing westerly force 4 or 5.
Weather: Cloudy to fair, with widespread heavy showers and isolated thunderstorms. Showers becoming isolated soon.
Visibility: Good. Decreasing moderate to poor in showers.
Outlook for a further 24 hours until 18:00, Tuesday 01 September 2026
Wind: Moderate to fresh southwesterly winds. Southwesterly winds increasing strong at times in the northwest, north and northeast, becoming westerly towards the end of the period and easing moderate to fresh. Weather: Cloudy to fair with scattered showers spreading from the west, some heavy. More peristent rain on Tuesday in the north and moving in from the west later.
Forecast issued at: 17:00, Sunday 30 August 2026
All times are local unless specified
