Sea Area Forecast
Forecast valid from: 23:30, Tuesday 22 September 2026 until 00:00, Thursday 24 September 2026
Small Craft Warning
Nil
Gale Warning
Nil
Meteorological Situation at 21:00 UTC
A broad anticyclone of 1031hPa lies to the west of Ireland, generating a light to moderate southerly or variable airflow across the country. A cold front associated with a depression north of Iceland will track southeastwards across Ireland on Tuesday night.
Heavy Swell (>4m) : No
Forecast for Roches Point to Slyne Head to Malin Head
Wind: Northwest force 3 or 4 imminent, soon becoming northwesterly force 2 to 4. Later decreasing variable force 3 or less. Increasing southerly force 4 to 6 by the end of the period.
Weather: Cloudy with rain and drizzle, becoming fair imminent with isolated showers. Cloudy to fair later.
Visibility: Moderate or poor in precipitation, otherwise good.
Forecast for Malin Head to Belfast Lough to Howth Head and for the Irish Sea North of the Isle of Man
Wind: Northwest force 4 to 6 imminent, soon becoming force 4 or 5. Later decreasing variable force 3 or less.
Weather: Cloudy with rain and drizzle. Soon becoming fair with isolated showers.
Visibility: Moderate or poor in precipitation, otherwise good.
Forecast for Howth Head to Carnsore Point to Roches Point and for the Irish Sea South of the Isle of Man
Wind: Southwest force 3 to 5, soon veering northwest force 4 or 5. Later becoming easterly or variable force 3 or less.
Weather: Cloudy with rain and drizzle. Soon becoming fair with isolated showers.
Visibility: Moderate or poor in precipitation, otherwise good.
Outlook for a further 24 hours until 00:00, Friday 25 September 2026
Moderate to strong southerly winds developing in all areas on Wednesday night, reaching near gale force in the northwest. Becoming southeasterly on Thursday evening. Weather: Becoming cloudy with rain spreading from the northwest.
Forecast issued at: 23:30, Tuesday 22 September 2026
All times are local unless specified
