Sea Area Forecast
Forecast valid from: 17:00, Tuesday 29 September 2026 until 18:00, Wednesday 30 September 2026
Small Craft Warning
Southeasterly winds, veering southerly will reach force 6 or higher on all Irish coasts through the period.
Gale Warning
Southeasterly winds will reach gale force 8 or strong gale force 9 this evening or early tonight on Irish coastal waters from Valentia to Fair Head to Roches Point and on the Irish Sea.
South to southwest winds will reach gale force 8 at times on Wednesday afternoon on northwestern coasts from Erris Head to Rossan Point.
Atlantic Swell
developing Wednesday afternoon in the west and southwest.
Meteorological Situation at 15:00 UTC
A near gale to strong gale force southeasterly airflow covers Ireland, generated by a rapidly deepening depression of 979hPa, centred approximately 260 nautical miles west of Loop Head. Associated frontal troughs will track northeastwards through this evening and early tonight, followed by a fresh to near gale force south to southwest airflow.
Gale Warning: In effect
Small Craft Warning: In effect
Heavy Swell (>4m) : yes
Forecast for Loop Head to Erris Head to Fair Head
Wind: Southeasterly force 7 to strong gale force 9 and gusty. Decreasing southerly force 6 or 7, occasionally gale force 8 and gusty, imminent. Further decreasing force 5 to 7 and gusty soon. Later becoming south to southwest force 6 or 7, occasionally reaching gale force 8 in the northwest.
Weather: Mostly cloudy with outbreaks of rain, heavy at times. Some mist patches. Cloudy to fair with showers imminent and soon, some heavy with a chance of isolated thunderstorms.
Visibility: Reducing moderate or poor in precipitation and mist, otherwise good.
Forecast for Fair Head to Howth Head to Roches Point and for the Irish Sea
Wind: Southeasterly force 6 to gale force 8 and gusty. Soon southerly force 5 or 6 and gusty. Later increasing force 5 to 7 and gusty. Becoming south to southwest force 5 or 6 by the end of the period.
Weather: Outbreaks of rain imminent, heavy at times. Mist patches. Cloudy to fair soon with showers, some heavy with a chance of isolated thunderstorms.
Visibility: Reducing moderate or poor in precipitation and mist, otherwise good.
Forecast for Roches Point to Valentia to Loop Head
Wind: Southerly force 6 or 7 and gusty imminent. Soon south to southwest force 5 or 6. Veering southwest force 5 to 7 and gusty later.
Weather: Cloudy to fair imminent with showers, some heavy with isolated thunderstorms.
Visibility: Reducing moderate or poor in precipitation, otherwise good.
Outlook for a further 24 hours until 18:00, Thursday 01 October 2026
Fresh to near gale force and gusty south to southwest winds, easing moderate to strong west to southwest. Later backing south to southwest, moderate to fresh in the east, and fresh to strong further west. Cloudy to fair with occasional showers, some heavy, prolonged or thundery.
Forecast issued at: 17:00, Tuesday 29 September 2026
All times are local unless specified
