Sea Area Forecast
Forecast valid from: 18:00, Tuesday 19 May 2026 until 18:00, Wednesday 20 May 2026
Small Craft Warning
Southwesterly winds will reach force 6 at times this evening (Tuesday), tonight and tomorrow morning on all Irish coasts.
Gale Warning
Nil.
Atlantic Swell
At times this evening (Tuesday) and tonight on southwestern coasts.
Meteorological Situation at 15:00 UTC
Low pressure of 989hPa, centred approximately 220 nautical miles northwest of Rossan Point generates a mostly fresh or strong southwesterly and unstable airflow over the country.
Small Craft Warning: In effect
Heavy Swell (>4m) : yes
Forecast for Roches Point to Loop Head to Erris Head
Wind: Southwesterly force 5 or 6 imminent. Soon decreasing westerly force 4 or 5. Later backing southerly.
Weather: Mostly cloudy, occasionally fair, with well scattered showers. Cloudy with rain, drizzle and mist in the southwest later.
Visibility: Reducing moderate or poor in precipitation and mist.
Forecast for Erris Head to Malin Head to Belfast Lough
Wind: South to southwest force 3 to 5. Soon increasing southwest or west force 4 to 6. Later decreasing force 4 or 5.
Weather: Cloudy to fair with scattered showers with a chance of isolated thunderstorms. Isolated showers later.
Visibility: Reducing moderate or poor in showers.
Forecast for Belfast Lough to Carnsore Point to Roches Point and for the Irish Sea
Wind: Southwesterly force 5 or 6, occasionally force 7. Soon decreasing force 5 or 6. Later decreasing south or southwest force 4 or 5.
Weather: Cloudy to fair with scattered showers with a chance of isolated thunderstorms. Isolated showers later.
Visibility: Reducing moderate or poor in showers.
Outlook for a further 24 hours until 18:00, Thursday 21 May 2026
Mostly fresh or strong southerly winds developing in all areas Wednesday night, reaching near gale force at times in the east. Decreasing moderate to strong Thursday. Weather: Turning cloudy from the southwest Wednesday evening with outbreaks of rain and drizzle. Areas of fog.
Forecast issued at: 18:00, Tuesday 19 May 2026
All times are local unless specified
