Sea Area Forecast

Forecast valid from: 00:00, Monday 24 August 2026 until 00:00, Tuesday 25 August 2026

Small Craft Warning

Nil

Gale Warning

Nil

Meteorological Situation at 21:00 UTC

An anticyclone of 1026hPa centred over the east of England, maintains a light to moderate easterly or variable airflow over the country.

Heavy Swell (>4m) : No

Wave Height Forecast

Forecast for Valentia to Erris Head to Fair Head

Wind: Southeasterly or variable mainly force 3 or 4. Later becoming easterly and reaching force 5 at times in the north.

Weather: Cloudy to fair with localised mist or fog possible. Isolated showers soon.

Visibility: Mostly good, decreasing moderate or poor in any showers, mist or fog.

Forecast for Fair Head to Strangford Lough to Howth Head and for the North Irish Sea

Wind: Easterly or variable force 2 to 4. Soon increasing east or southeast force 3 or 4, occasionally force 5. Later increasing easterly force 4 or 5, occasionally force 6.

Weather: Cloudy to fair with localised mist or fog possible. Isolated showers later.

Visibility: Mostly good, decreasing moderate or poor in any showers, mist or fog.

Forecast for Howth Head to Carnsore Point to Valentia and for the South Irish Sea

Wind: Increasing easterly force 3 to 5 imminent. Later increasing east or northeast force 4 or 5, occasionally force 6.

Weather: Cloudy to fair with localised mist or fog possible. Isolated showers soon.

Visibility: Mostly good, decreasing moderate or poor in any showers, mist or fog.

Outlook for a further 24 hours until 00:00, Wednesday 26 August 2026

Moderate to fresh, occasionally strong easterly winds, becoming mostly fresh to strong Tuesday evening and night. Weather: Cloudy to fair with scattered showers. Showery outbreaks of rain extending northwestwards from Tuesday afternoon.

Forecast issued at: 00:00, Monday 24 August 2026

All times are local unless specified