Sea Area Forecast

Forecast valid from: 00:00, Tuesday 21 July 2026 until 00:00, Wednesday 22 July 2026

Small Craft Warning

Northwesterly winds will reach force 6 from Tuesday afternoon on Irish coasts from Fair Head to Belfast Lough to Carlingford Lough.

Gale Warning

Nil

Meteorological Situation at 21:00 UTC

An anticyclone of 1038hPa, centred approximately 420 nautical miles west of Erris Head, extends a light to fresh northerly airflow over Ireland.

Small Craft Warning: In effect

Heavy Swell (>4m) : No

Wave Height Forecast

Forecast for Mizen Head to Rossan Point to Carlingford Lough and for the Irish Sea

Wind: Northerly force 3 to 5. Later increasing force 4 to 6.

Weather: Mostly cloudy in the north and northwest with patchy drizzle and mist. Cloudy to fair elsewhere.

Visibility: Good, decreasing moderate or poor in precipitation and mist.

Forecast for Carlingford Lough to Carnsore Point to Mizen Head

Wind: Increasing northerly force 3 or 4, occasionally force 5, imminent. Soon decreasing northerly or variable force 2 to 4.

Weather: Cloudy to fair with occasional mist.

Visibility: Good, decreasing moderate or poor in mist.

Outlook for a further 24 hours until 00:00, Thursday 23 July 2026

Mostly moderate to fresh northerly winds, occasionally strong in the northeast and the southwest on Tuesday night. Decreasing light to moderate, occasionally fresh, on Wednesday morning, but remaining moderate to fresh, occasionally strong, in the east. Weather: Mostly cloudy in the north and northwest with patchy drizzle and mist. Cloudy to fair elsewhere.

Forecast issued at: 00:00, Tuesday 21 July 2026

All times are local unless specified