Réamhaisnéis limistear na farraige

Forecast valid from: 16:00, Saturday 12 September 2026 until 18:00, Sunday 13 September 2026

Small Craft Warning

Nil

Gale Warning

Nil

Meteorological Situation at 15:00 UTC

A depression of 968hPa northeast of Iceland generates a moderate to fresh westerly airflow across the country. An associated frontal wave tracks to the south of Ireland.

Heavy Swell (>4m) : No

Wave Height Forecast

Forecast for Belfast Lough to Howth Head to Dungarvan and for the Irish Sea

Wind: West force 3 to 5, easing force 3 or 4 imminent. Soon easing westerly or variable force 3 or less. Becoming southerly force 3 or 4 by the end of the period.

Weather: Cloudy with isolated showers. Rain and drizzle further south with heavy and persistent falls at times. Mist patches too.

Visibility: Reducing moderate or poor in precipitation and mist.

Forecast for Dungarvan to Slyne Head to Belfast Lough

Wind: Southwest force 3 or 4. Soon becoming westerly or variable force 2 to 4. Later backing southerly or variable force 2 to 4.

Weather: Cloudy with rain and drizzle along the south, heavy and persistent at times. Isolated showers elsewhere. Mist and fog patches too.

Visibility: Reducing moderate or poor in precipitation, mist and fog.

Outlook for a further 24 hours until 18:00, Monday 14 September 2026

Moderate to fresh southwest winds will increase to fresh to strong along Atlantic coasts. Weather: Cloudy with showery spells of rain, heavy at times. Chance of isolated thunderstorms.

Forecast issued at: 16:00, Saturday 12 September 2026

All times are local unless specified