Réamhaisnéis limistear na farraige

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

Wave Height Forecast

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