Sea Area Forecast
Forecast valid from: 23:30, Saturday 12 September 2026 until 00:00, Monday 14 September 2026
Small Craft Warning
Nil
Gale Warning
Nil
Meteorological Situation at 21:00 UTC
Ireland lies in a light to moderate west to southwest airflow, with an anticyclone of 1020hPa to the west. A frontal wave lies near the south coast and will clear away to the southeast overnight.
Heavy Swell (>4m) : No
Forecast for Howth Head to Roches Point to Slyne Head and for the South Irish Sea
Wind: Southwest to west force 3 to 5. Southwest to west or variable force 2 to 4 imminent. Soon decreasing variable force 3 or less. Later increasing south to southwest force 3 to 5.
Weather: Cloudy with outbreaks of rain, heavy at times and mainly in the south. Cloudy to fair with isolated showers imminent. Areas of mist and fog.
Visibility: Moderate or poor in precipitation, mist and fog.
Forecast for Slyne Head to Malin Head to Howth Head and for the North Irish Sea
Wind: Anticyclonic variable force 2 to 4. Later becoming southeast to south force 3 to 5.
Weather: Cloudy or fair with isolated drizzle and mist. Cloudy or fair with isolated showers imminent.
Visibility: Mostly good. Decreasing moderate or poor in precipitation and mist.
Outlook for a further 24 hours until 00:00, Tuesday 15 September 2026
Light to fresh south to southwest winds, increasing moderate to strong on Monday morning. Moderate to fresh westerly winds in the west and north later. Weather: Cloudy to fair with isolated showers. Becoming cloudy with rain or showers.
Forecast issued at: 23:30, Saturday 12 September 2026
All times are local unless specified
