Sea Area Forecast

Forecast valid from: 13:00, Wednesday 09 September 2026 until 12:00, Thursday 10 September 2026

Small Craft Warning

Southerly winds will reach force 6 this evening and tonight (Wednesday night) on Irish coasts from Roches Point to Slyne Head to Fair Head, extending to all Irish coasts tomorrow morning (Thursday).

Gale Warning

nil

Meteorological Situation at 09:00 UTC

An anticyclone of 1025hPa centred northwest of Iberia extends a ridge of high pressure north over Ireland. Frontal troughs associated with a depression centred in the north mid-Atlantic approach the country from the west.

Small Craft Warning: In effect

Heavy Swell (>4m) : No

Wave Height Forecast

Forecast for Mizen Head to Slyne Head to Malin Head

Wind: Imminent increasing southwesterly force 4 or 5. Soon backing southerly force 5 or 6. Later increasing force 6 or 7. Veering southwesterly force 4 to 6 by the end of the period.

Weather: Cloudy to fair with isolated showers. Outbreaks of rain or scattered showers spreading from the west soon.

Visibility: Reducing moderate or poor in precipitation, otherwise good.

Forecast for Malin Head to Howth Head to Mizen Head and for the Irish Sea

Wind: Imminent backing southwest to west force 2 to 4. Soon becoming southwesterly force 3 to 5. Later increasing south to southwest force 5 or 6, possibly touching force 7.

Weather: Cloudy to fair with isolated showers. Outbreaks of rain or scattered showers spreading from the west later.

Visibility: Reducing moderate or poor in precipitation, otherwise good.

Outlook for a further 24 hours until 12:00, Friday 11 September 2026

Fresh to strong southerly winds over the eastern half of the country will ease moderate to fresh and veer westerly through Thursday. Southwesterly winds over the western half of the country will ease moderate to fresh and veer westerly. Weather: Outbreaks of rain and showers clearing eastwards and becoming isolated.

Forecast issued at: 13:00, Wednesday 09 September 2026

All times are local unless specified