Sea Area Forecast

Forecast valid from: 00:00, Thursday 25 December 2025 until 00:00, Friday 26 December 2025

Small Craft Warning

Northeast to east winds will reach force 6 or higher tonight (Wednesday night) on Irish coasts from Carlingford Lough to Carnsore Point to Mizen Head, extending to coasts from Belfast Lough to Carnsore Point to Valentia tomorrow (Thursday).

Gale Warning

Nil

Meteorological Situation at 21:00 UTC

A slow-moving anticyclone of 1042hPa, centred over the North Sea, generates a mostly moderate to fresh easterly airflow over the country.

Small Craft Warning: In effect

Heavy Swell (>4m) : Nil

Wave Height Forecast

Forecast for Irish coastal waters from Belfast Lough to Carnsore Point to Valentia and for the Irish Sea

Wind: Northeast to east force 4 to 6. Soon increasing force 5 to 7.

Weather: Mainly fair. Occasionally cloudy. Mist patches possible.

Visibility: Mostly good. Decreasing moderate in mist.

Forecast for Irish coastal waters from Valentia to Erris Head to Belfast Lough

Wind: Easterly force 4 or 5. Later increasing force 4 to 6.

Weather: Fair or fine.

Visibility: Good.

Outlook for a further 24 hours until 00:00, Saturday 27 December 2025

Fresh to strong easterly winds in the east and south, occasionally increasing near gale force. Moderate to fresh easterly winds in the west and north, strong at times later. Weather: Cloudy for a time in the south, with fog possible. Otherwise fair or fine.

Forecast issued at: 00:00, Thursday 25 December 2025

All times are local unless specified