Sea Area Forecast
Forecast valid from: 18:00, Thursday 24 September 2026 until 18:00, Friday 25 September 2026
Small Craft Warning
1. Southwesterly winds will reach force 6 at times today (Thursday) and tonight (Thursday night) on Irish coasts from Slyne Head to Rossan Point to Fair Head. 2. Southerly winds will reach force 6 at times today (Thursday) on Irish coasts from Fair Head to Carlingford Lough to Howth Head. 3. Southwesterly winds will reach force 6 at times tomorrow afternoon and evening (Friday) on Irish coasts from Valentia to Erris Head to Malin Head.
Gale Warning
nil
Atlantic Swell
On southwestern, western and northwestern coasts.
Meteorological Situation at 15:00 UTC
Ireland lies in a moderate to strong south to southwest airflow between a depression of 960hPa centred south of Iceland and high pressure to the southeast of the country. Weather fronts associated with the depression will pass southeastwards over the country through the period.
Small Craft Warning: In effect
Heavy Swell (>4m) : yes
Forecast for Valentia to Erris Head to Fair Head
Wind: Southwesterly force 4 to 6, strongest in the northwest. Later decreasing force 4 or 5. Increasing force 5 or 6, touching near gale force 7 at times, by the end of the period.
Weather: Cloudy with rain, drizzle and mist. Soon becoming cloudy to fair with well-scattered showers.
Visibility: Reducing moderate or poor in precipitation or mist.
Forecast for Fair Head to Howth Head to Carnsore Point and for the Irish Sea
Wind: South to southwest force 4 to 6. Soon veering westerly force 3 or 4. Later backing southwesterly and increasing force 3 to 5 by the end of the period.
Weather: Cloudy with outbreaks of rain, drizzle and mist imminent. Cloudy to fair with isolated showers later.
Visibility: Reducing moderate or poor in precipitation or mist.
Forecast for Carnsore Point to Roches Point to Valentia
Wind: Southwesterly force 4 or 5. Imminent decreasing force 3 to 5 and veering west to northwest. Later backing southwesterly.
Weather: Cloudy with isolated patches of rain, drizzle and mist. Cloudy to fair with isolated showers later.
Visibility: Reducing moderate or poor in precipitation or mist.
Outlook for a further 24 hours until 18:00, Saturday 26 September 2026
Fresh to strong, occasionally near gale force, southwesterly winds in the west and north. Moderate to fresh, occasionally strong, southwesterly winds in the east and south. Weather: Cloudy to fair with scattered showers and with the chance of isolated thunderstorms in the northwest.
Forecast issued at: 18:00, Thursday 24 September 2026
All times are local unless specified
