Sea Area Forecast
Forecast valid from: 11:00, Wednesday 23 September 2026 until 12:00, Thursday 24 September 2026
Small Craft Warning
Southerly winds will reach force 6 or higher on Thursday morning on Irish coasts from Valentia to Erris Head to Belfast Lough.
Gale Warning
nil
Meteorological Situation at 09:00 UTC
An anticyclone of 1030hPa centred southwest of Valentia extends a ridge of high pressure across the country and generates a mostly moderate northwesterly airflow over Ireland.
Small Craft Warning: In effect
Heavy Swell (>4m) : No
Forecast for Valentia to Erris Head to Belfast Lough
Wind: Northwest or variable force 3 or 4, occasionally force 5 between Fair Head and Belfast Lough. Decreasing variable force 2 to 4 imminent. Soon increasing southerly force 4 or 5. Later increasing force 5 to 7.
Weather: Fair with isolated showers. Soon becoming cloudy. Patchy rain and drizzle later. Mist patches too.
Visibility: Good, decreasing moderate or poor in precipitation and mist.
Forecast for Belfast Lough to Carnsore Point to Valentia and for the Irish Sea
Wind: Northwesterly force 4 or 5, becoming northerly or variable force 2 to 4 imminent. Soon becoming easterly or variable force 2 to 4. Later becoming southerly force 4 or 5.
Weather: Fair with isolated showers. Later becoming cloudy with patchy rain and drizzle.
Visibility: Good, decreasing moderate or poor in precipitation.
Outlook for a further 24 hours until 12:00, Friday 25 September 2026
Moderate to strong southwesterly winds, reaching near gale force in the northwest at times early Thursday. Winds becoming westerly on west coasts Friday morning. Weather: Cloudy with outbreaks of rain and drizzle.
Forecast issued at: 11:00, Wednesday 23 September 2026
All times are local unless specified
