Sea Area Forecast

Forecast valid from: 11:25, Wednesday 26 August 2026 until 12:00, Thursday 27 August 2026

Small Craft Warning

Northeast to east winds will reach force 6 tonight (Wednesday night) and tomorrow morning on Irish coasts from Dungarvan to Mizen Head to Loop Head.

Gale Warning

nil

Meteorological Situation at 09:00 UTC

A depression of 1001hPa centred approximately 300 nautical miles southwest of Valentia generates a moderate to fresh easterly airflow over Ireland. An occluded front moves northwards over the area.

Small Craft Warning: In effect

Heavy Swell (>4m) : No

Wave Height Forecast

Forecast for Slyne Head to Rossan Point to Fair Head

Wind: Northeast to east force 3 to 5. Soon decreasing force 3 or 4.

Weather: Mostly cloudy with scattered rain or drizzle. Soon cloudy to fair with isolated showers, heavy at times with a chance of thunderstorms. Patches of mist.

Visibility: Mostly good. Decreasing moderate or poor in precipitation and mist.

Forecast for Fair Head to Carlingford Lough to Carnsore Point and for the Irish Sea

Wind: East to southeast force 3 to 5. Northeast to east or variable force 3 to 5 imminent. Later increasing northeast to east force 4 to 6.

Weather: Cloudy or fair with scattered showers, heavy at times with a chance of thunderstorms. Later becoming cloudy with heavy rain in southern areas. Patches of mist.

Visibility: Mostly good. Decreasing moderate or poor in precipitation and mist.

Forecast for Carnsore Point to Mizen Head to Slyne Head

Wind: East to southeast force 3 or 4, occasionally increasing force 5. Later increasing northeast to east force 4 to 6, possibly reaching force 7 at times in the south.

Weather: Cloudy to fair with scattered showers, heavy at times with a chance of thunderstorms. Later cloudy with rain, heavy at times.

Visibility: Mostly good. Decreasing moderate or poor in precipitation and mist.

Outlook for a further 24 hours until 12:00, Friday 28 August 2026

Moderate to fresh north to northeast winds, decreasing light and variable in the east and south on Thursday. Mainly light to moderate northwest or cyclonic variable winds developing on Friday morning. Weather: Cloudy with rain in the east and south, heavy at times. Cloudy to fair with scattered showers in the west and north. Areas of mist and fog.

Forecast issued at: 11:25, Wednesday 26 August 2026

All times are local unless specified