Sea Area Forecast
Forecast valid from: 17:00, Monday 28 September 2026 until 18:00, Tuesday 29 September 2026
Small Craft Warning
1. Southeast winds will reach force 6 or higher this evening (Monday evening) on Irish coasts from Roches Point to Slyne Head to Belfast Lough.
2. Southeast wiinds will reach force 6 or higher on all Irish coasts and the Irish sea tomorrow (Tuesday).
Gale Warning
Southeasterly winds will increase to gale force 8 on Tuesday morning on coasts front Roches Point to Erris Head to Fair Head.
Atlantic Swell
Developing on west and south Atlantic coasts Tuesday morning.
Meteorological Situation at 15:00 UTC
Ireland lies in a moderate to fresh southerly airflow situated between an anticylone of 1034hPa northeast of Engalnd, and a depression of 984hPa approximately 400 nautical miles west of Erris Head.
Gale Warning: In effect
Small Craft Warning: In effect
Heavy Swell (>4m) : yes
Forecast for Roches Point to Erris Head to Fair Head
Wind: Southeast force 4 to 6. Soon increasing southeast force 5 to 7. Later increasing southeast force 7 to gale force 8. Occasionally reaching strong gale force 9 between Mizen Head and Loop Head by the end of the period.
Weather: Fair to cloudy. Rain developing soon, turning heavy later. Mist patches by the end of the period too.
Visibility: Good, reducing moderate or poor in precipitation and mist.
Forecast for Fair Head to Wicklow Head to Roches Point and for the Irish Sea
Wind: South to southeast force 2 to 4, backing easterly force 3 or 4 and occasionally force 5 imminent. Soon increasing southeast force 4 or 5. Later increasing force 5 or 6 and occasionally force 7.
Weather: Fair to cloudy. Rain developing later, heavy at times. Mist and fog patches developing by end of their period.
Visibility: Good, reducing moderate or poor in precipitation, mist and fog.
Outlook for a further 24 hours until 18:00, Wednesday 30 September 2026
Strong to gale force southeasterly winds will veer south to southwest on Tuesday night and ease moderate to strong. Weather: Cloudy with heavy spells of rain clearing northeastwards. Scattered showers will develop from the southwest on Wednesday morning, turning heavy at times with the chance of isolated thunderstorms.
Forecast issued at: 17:00, Monday 28 September 2026
All times are local unless specified
