Sea Area Forecast
Forecast valid from: 05:00, Tuesday 04 August 2026 until 06:00, Wednesday 05 August 2026
Small Craft Warning
1) West to northwesterly winds will increase to force 6 or 7 later Tuesday afternoon, evening and overnight on Irish coasts from Loop Head to Erris Head to Malin Head.
2)Southwest to west winds will reach force 6 at times on Tuesday night on Irish coasts from Malin Head to Belfast Lough to Howth Head.
Gale Warning
Nil.
Meteorological Situation at 03:00 UTC
Ireland lies in a mostly moderate to strong cyclonic variable airflow generated by a depression of 1003hpa centred over the west of Ireland and tracking slowly northwards. Associated frontal troughs embedded within the flow, continue to track northeastwards.
Small Craft Warning: In effect
Heavy Swell (>4m) : No
Forecast for Malin Head to Carlingford Lough to Carnsore Point and for the Irish Sea
Wind: Decreasing mainly southerly force 4 or 5 imminent, but decreasing south or southeasterly force 2 to 4 between Malin Head and Belfast Lough imminent. Soon increasing south to southwest mainly force 4 or 5, occasionally force 3 or less between Malin Head and Belfast Lough. Later increasing southwest to west force 5 or 6.
Weather: Cloudy with showery outbreaks of rain and drizzle, along with mist and fog. Becoming cloudy to fair imminent with scattered showers and isolated mist patches. Some of the showers turning heavy and possibly thundery, becoming isolated later.
Visibility: Moderate to poor in precipitation, mist and fog. Otherwise good.
Forecast for Carnsore Point to Roches Point to Mizen Head
Wind: South to southwest force 4 or 5, veering westerly west of Roches Point imminent. Soon southwest to west. Later increasing west to northwest force 5 or 6.
Weather: Cloudy to fair imminent with scattered showers and mist patches. Soon some of the showers turning heavy, becoming isolated later.
Visibility: Moderate to poor in precipitation and mist. Otherwise good.
Forecast for Mizen Head to Slyne Head to Malin Head
Wind: Increasing northwesterly force 4 or 5 imminent, southwest to west force 4 north of Rossan Point. Soon increasing mainly northwesterly force 5 or 6, westerly force 4 or 5 north of Rossan Point. Later increasing west to northwesterly mostly force 6, occasionally force 7 north of Erris Head, mostly force 5 south of Loop Head.
Weather: Cloudy to fair with showers, some heavy, with frequent thunderstorms this morning in the west and northwest, becoming more isolated soon. Mist and fog patches, becoming isolated imminent. Showers becoming isolated later. Becoming cloudy towards the end of the period in the northwest with outbreaks of rain and drizzle.
Visibility: Moderate to poor in precipitation, mist and fog. Otherwise good.
Outlook for a further 24 hours until 06:00, Thursday 06 August 2026
Wind: Fresh or strong and gusty mainly west to northwest winds, southwest to west in the east and northeast, reaching near gale in parts of the northwest, north, northeast and on the Irish Sea. Winds will further increase gale force in the northwest. West to northwest winds will ease moderate to fresh on Wednesday night. Weather: Cloudy in the northwest, north and northeast with rain, heavy at times, clearing on Wednesday night. Otherwise, cloudy to fair with scattered showers.
Forecast issued at: 05:00, Tuesday 04 August 2026
All times are local unless specified
