Sea Area Forecast
Forecast valid from: 23:30, Saturday 22 August 2026 until 00:00, Monday 24 August 2026
Small Craft Warning
Nil
Gale Warning
Nil
Meteorological Situation at 21:00 UTC
Ireland lies in a light to moderate northerly airflow with an anticyclone of 1029hPa centred approximately 200 nautical miles west of Slyne Head.
Heavy Swell (>4m) : No
Forecast for Belfast Lough to Howth Head to Mizen Head and for the Irish Sea
Wind: Northerly or variable force 2 to 4, later becoming variable force 3 or less.
Weather: Cloudy to fair with isolated showers. Mist and fog patches possible.
Visibility: Good. Decreasing moderate or poor in any mist and fog.
Forecast for Mizen Head to Slyne Head to Belfast Lough
Wind: Northerly or variable force 2 to 4, later becoming northeasterly or variable.
Weather: Cloudy to fair with isolated showers. Mist and fog patches possible.
Visibility: Good. Decreasing moderate or poor in any mist and fog.
Outlook for a further 24 hours until 00:00, Tuesday 25 August 2026
Light to fresh easterly winds, increasing moderate to strong on Monday evening. Weather: Cloudy to fair. Scattered showers developing on Monday. Some mist and fog possible.
Forecast issued at: 23:30, Saturday 22 August 2026
All times are local unless specified
