Sea Area Forecast
Forecast valid from: 00:00, Sunday 17 May 2026 until 00:00, Monday 18 May 2026
Small Craft Warning
1. Westerly winds will reach force 6 at times tonight (Saturday) on Irish coasts from Slyne Head to Bloody Foreland to Fair Head.
2. Westerly winds will reach force 6 at times from early tomorrow (Sunday) on Irish coasts from Wicklow Head to Valentia to Erris Head.
Gale Warning
nil
Meteorological Situation at 21:00 UTC
Ireland lies in a moderate to strong northwesterly airflow generated by a depression of 998hPa south of Iceland. An associated broad complex trough lies to the west of Ireland.
Small Craft Warning: In effect
Heavy Swell (>4m) : No
Forecast for Erris Head to Malin Head to Belfast Lough
Wind: Westerly force 4 to 6. Soon decreasing force 2 to 4. Later backing northwesterly.
Weather: Cloudy to fair with scattered showers. Chance of isolated thunderstorms and hail.
Visibility: Good, decreasing moderate or poor in showers.
Forecast for Belfast Lough to Howth Head to Carnsore Point and for the Irish Sea
Wind: West to southwest force 4 or 5. Later reaching force 6 at times.
Weather: Cloudy to fair with scattered showers soon. Chance of isolated thunderstorms and hail.
Visibility: Good, decreasing moderate or poor in showers.
Forecast for Carnsore Point to Mizen Head to Erris Head
Wind: Westerly force 4 to 6. Soon reaching force 7 at times. Later gradually decreasing northwesterly force 2 to 4 north of Valentia.
Weather: Cloudy to fair with widespread showers imminent. Chance of isolated thunderstorms and hail.
Visibility: Good, decreasing moderate or poor in showers.
Outlook for a further 24 hours until 00:00, Tuesday 19 May 2026
Moderate to strong westerly winds in the south and east, mostly light northwesterly winds in the west and north. Increasing moderate to strong south to southeast winds on Monday. Weather: Cloudy to fair with showers. Rain spreading from the southwest on Monday.
Forecast issued at: 00:00, Sunday 17 May 2026
All times are local unless specified
