Sea Area Forecast

Forecast valid from: 23:00, Monday 25 May 2026 until 00:00, Wednesday 27 May 2026

Small Craft Warning

Northeast winds will increase to force 6 at times from later Tuesday afternoon on Irish coasts from Slyne Head to Rossan Point to Bloody Foreland.

Gale Warning

Nil.

Meteorological Situation at 21:00 UTC

Ireland lies in a light to moderate anticyclonic airflow, generated by a large area of high pressure of 1031hPa, centred over mainland Europe.

Small Craft Warning: In effect

Heavy Swell (>4m) : No

Wave Height Forecast

Forecast for Valentia to Erris Head to Fair Head

Wind: North to northeast force 3 or 4. Soon increasing force 4 or 5. Later occasionally increasing force 6 between Slyne Head and Rossan Point.

Weather: Cloudy to fair. Mist and fog patches.

Visibility: Good, reducing moderate to poor in mist and fog.

Forecast for Fair Head to Howth Head to Carnsore Point and for the Irish Sea

Wind: Northerly or variable force 2 to 4. Soon increasing force 4 or 5.

Weather: Fair or fine.

Visibility: Good.

Forecast for Carnsore Point to Roches Point to Valentia

Wind: Becoming northeast to east force 2 to 4 imminent. Soon increasing mostly force 4. Later increasing force 4 or 5.

Weather: Fair or fine. Isolated mist or fog.

Visibility: Good, reducing moderate to poor in mist and fog.

Outlook for a further 24 hours until 00:00, Thursday 28 May 2026

Wind: Moderate to fresh, occasionally strong, northeast to east winds, becoming east to southeasterly later Wednesday. Weather: Mostly fair or fine. Well scattered showers possible later Wednesday and Wednesday night, with a chance of an isolated thunderstorm. Becoming cloudy in the south-west and south towards the end of the period with mist, drizzle and fog.

Forecast issued at: 23:00, Monday 25 May 2026

All times are local unless specified