Sea Area Forecast
Forecast valid from: 11:00, Thursday 01 October 2026 until 12:00, Friday 02 October 2026
Small Craft Warning
South to southwest winds will reach force 6 or higher at times today, tonight and during Friday on all Irish coasts.
Gale Warning
Nil
Atlantic Swell
On Atlantic coasts today and tonight.
Meteorological Situation at 09:00 UTC
Ireland lies in a fresh southwest airflow as a ridge of high pressure declines eastwards. The flow will become increasingly unstable as an Atlantic depression begins to steer embedded frontal troughs across the country, the more active of which will move in during Friday.
Small Craft Warning: In effect
Heavy Swell (>4m) : yes
Forecast for Roches Point to Slyne Head to Malin Head
Wind: Southwesterly force 5 or 6 and gusty. Increasing force 6 or 7 and gusty towards the end of the period.
Weather: Fair to cloudy with showery rain developing. Becoming fine for a time overnight. Rain later, heavy with possible hail and lightning.
Visibility: Moderate or poor at times.
Forecast for Malin Head to Howth Head to Roches Point and for the Irish Sea
Wind: Southwesterly force 4 to 5, locally force 6 on the North Irish Sea. Soon increasing force 5 or 6 and gusty, and reaching force 7 later on the Irish Sea.
Weather: Fine. Showery rain later, heavy in the south and southeast.
Visibility: Good, decreasing moderate or poor at times later.
Outlook for a further 24 hours until 12:00, Saturday 03 October 2026
A shallow low will feed in squally rain and strong and gusty southerlies, clearing in to the Irish Sea on Friday evening. High pressure will build from the southwest with fine and mostly calm weather following.
Forecast issued at: 11:00, Thursday 01 October 2026
All times are local unless specified
