Sea Area Forecast
Forecast valid from: 23:00, Thursday 11 June 2026 until 00:00, Saturday 13 June 2026
Small Craft Warning
West to southwest winds will reach force 6 or higher at times today and tonight (Friday) on all Irish coastal waters and on the Irish Sea.
Gale Warning
Nil.
Atlantic Swell
Developing on north and west Atlantic coasts on Friday morning.
Meteorological Situation at 21:00 UTC
A depression of 989hPa centered approximately 400 nautical miles southwest of Iceland extends a moderate to strong westerly airflow over Ireland.
Small Craft Warning: In effect
Heavy Swell (>4m) : yes
Forecast for Slyne Head to Bloody Foreland to Fair Head
Wind: Southwest force 4 or 5, increasing west force 5 or 6 imminent. Soon increasing southwest force 6 and occasionally force 7.
Weather: Cloudy with patchy light rain and drizzle. Scattered showers developing soon.
Visibility: Reducing moderate or poor in all precipitation.
Forecast for Fair Head to Strangford Lough to Howth Head and for the North Irish Sea
Wind: West force 4 to 6, backing southwest force 3 or 4 imminent. Soon increasing southwesterly force 4 to 6.
Weather: Cloudy to fair with light rain and drizzle.
Visibility: Reducing moderate or poor in all precipitation.
Forecast for Howth Head to Roches Point to Slyne Head and for the South Irish Sea
Wind: Southwest force 4 or 5, increasing force 5 or 6 imminent. Later becoming west to southwest force 4 to 6. Easing westerly force 3or 4, and occasionally force 5 by the end of the period.
Weather: Cloudy with light drizzle, mist and fog.
Visibility: Reducing moderate or poor in all precipitation, mist and fog.
Outlook for a further 24 hours until 00:00, Sunday 14 June 2026
Fresh to strong and gusty westerly winds will ease light to moderate from the southwest on Saturday morning and back southerly or cyclonic variable. Weather: Cloudy to fair with scattered showers in the north.
Forecast issued at: 23:00, Thursday 11 June 2026
All times are local unless specified
