Sea Area Forecast

Forecast valid from: 17:30, Friday 21 August 2026 until 18:00, Saturday 22 August 2026

Small Craft Warning

Nil.

Gale Warning

Nil.

Meteorological Situation at 15:00 UTC

Ireland lies in a moderate to fresh northerly airflow, between an anticyclone of 1030hPa centred over the mid-Atlantic and a depression of 1001hPa centred over Scandinavia.

Heavy Swell (>4m) : No

Wave Height Forecast

Forecast for Mizen Head to Erris Head to Malin Head

Wind: Northerly force 4 or 5. Soon decreasing force 3 to 5. Later becoming anticyclonic variable force 2 to 4.

Weather: Cloudy to fair with isolated showers, some heavy.

Visibility: Mostly good. Decreasing moderate to poor in showers.

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

Wind: Northerly force 4 or 5. Later becoming anticyclonic variable force 3 to 5.

Weather: Cloudy to fair with isolated showers, some heavy. Showers becoming isolated imminently.

Visibility: Mostly good. Decreasing moderate to poor in showers.

Forecast for Carnsore Point to Dungarvan to Mizen Head

Wind: Mainly north to northeast force 4 or 5. Later decreasing force 3 or 4. Becoming variable force 2 to 4 by the end of the period.

Weather: Cloudy to fair with isolated showers, some heavy. Showers becoming isolated imminently.

Visibility: Mostly good. Decreasing moderate to poor in showers.

Outlook for a further 24 hours until 18:00, Sunday 23 August 2026

Wind: Mostly light to moderate northerly or variable, but fresh northwesterly in the northeast on Saturday evening. Winds easing light to moderate anticyclonic variable on Saturday night. Weather: Cloudy to fair with isolated showers. Isolated mist and fog.

Forecast issued at: 17:30, Friday 21 August 2026

All times are local unless specified