Sea Area Forecast
Forecast valid from: 12:00, Friday 18 September 2026 until 12:00, Saturday 19 September 2026
Small Craft Warning
Southwest winds will increase to force 6 or higher on all Irish coasts today and tonight.
Gale Warning
Southwest winds will reach gale force 8 for a time this afternoon on the North Irish Sea.
Atlantic Swell
On Atlantic Coasts
Meteorological Situation at 09:00 UTC
Low pressure of 978hPa northwest of Ireland with wrap around fronts extends a trough southeast over the UK. High pressure of 1033hPa lies west of Iberia.
Gale Warning: In effect
Small Craft Warning: In effect
Heavy Swell (>4m) : yes
Forecast for Malin Head to Wicklow Head to Roches Point and for the Irish Sea
Wind: Southwest force 7 or gale force 8. Soon easing southwest force 6 or 7.
Weather: Cloudy with rain.
Visibility: Reducing moderate in rain.
Forecast for Roches Point to Slyne Head to Malin Head
Wind: Southwest force 6 or 7. Later easing southwest force 5 or 6.
Weather: Cloudy with light rain or drizzle.
Visibility: Reducing moderate or poor in precipitation.
Outlook for a further 24 hours until 12:00, Sunday 20 September 2026
Fresh to strong west to southwest winds. Easing moderate to fresh westerly in the south Saturday night. Easing moderate to fresh westerly but light and variable in the south Sunday morning. Becoming moderate to fresh southerly everywhere Sunday afternoon. Weather: Cloudy to fair with rain or showers.
Forecast issued at: 12:00, Friday 18 September 2026
All times are local unless specified
