Sea Area Forecast
Forecast valid from: 12:00, Wednesday 03 September 2025 until 12:00, Thursday 04 September 2025
Small Craft Warning
Northwesterly winds will reach force 6 at times until this afternoon on Irish coasts from Carnsore Point to Roches Point to Valentia.
Gale Warning
Nil
Meteorological Situation at 09:00 UTC
Low pressure of 979hPa, south of Iceland extends a trough over Ireland. Associated frontal systems lie to the south of Ireland.
Small Craft Warning: In effect
Heavy Swell (>4m) : Nil
Forecast for Irish coastal waters from Carnsore Point to Roche's Point to Valentia
Wind: Northwest force 4 or 5, reaching force 6 at times. Soon decreasing west to northwest force 3 or 4, increasing force 5 at times by end of period.
Weather: Cloudy to fair. Mostly cloudy. Scattered showers heavy and possibly thundery at times.
Visibility: Reducing moderate or poor in showers.
Forecast for Irish coastal waters from Valentia to Slyne Head to Belfast Lough
Wind: Northwest force 3 or 4. Soon backing west. Later increasing northwest to west force 4 or 5 at times.
Weather: Cloudy to fair. Mostly cloudy. Scattered showers heavy and possibly thundery at times.
Visibility: Reducing moderate or poor in showers.
Forecast for Irish coastal waters from Belfast Lough to Howth Head to Carnsore Point and for the Irish Sea
Wind: Southwest force 2 to 4, reaching force 5 in the south Irish sea. Soon increasing westerly force 4 or 5. Later decreasing westerly or variable force 2 to 4.
Weather: Cloudy to fair. Mostly cloudy. Scattered showers heavy and possibly thundery at times.
Visibility: Reducing moderate or poor in showers.
Outlook for a further 24 hours until 12:00, Friday 05 September 2025
Mostly moderate to fresh west to northwest winds will back southwest by Friday and strengthen fresh to strong in the north and northwest. Elsewhere winds will stay mostly moderate. Weather: Cloudy to fair with scattered showers, some heavy at times.
Forecast issued at: 12:00, Wednesday 03 September 2025
All times are local unless specified
