Sea Area Forecast
Forecast valid from: 00:00, Monday 17 August 2026 until 00:00, Tuesday 18 August 2026
Small Craft Warning
South to southwest winds will reach force 6 on Monday afternoon on Irish coasts from Hook Head to Roches Point to Mizen Head and on Irish coasts from Valentia to Slyne Head to Rossan Point.
Gale Warning
nil
Meteorological Situation at 21:00 UTC
Ireland lies in a mainly moderate to fresh west to southwest airflow with a ridge of high pressure to the south and a filling, shallow depression of 1015hPa to the north.
Small Craft Warning: In effect
Heavy Swell (>4m) : No
Forecast for Valentia to Erris Head to Malin Head
Wind: West to northwest force 3 or 4. Soon backing southwesterly. Later increasing force 4 to 6.
Weather: Cloudy with occasional rain and drizzle. Patchy mist and fog also. Rain becoming persistent from the west later.
Visibility: Good, decreasing moderate or poor in precipitation, mist and fog.
Forecast for Malin Head to Wicklow Head to Valentia and for the Irish Sea
Wind: West to northwest or variable force 2 to 4. Later gradually increasing southwesterly force 4 or 5, occasionally reaching force 6 between Hook Head and Mizen Head.
Weather: Cloudy with occasional rain and drizzle. Patchy mist and fog also. Later becoming cloudy to fair in the south.
Visibility: Good, decreasing moderate or poor in precipitation, mist and fog.
Outlook for a further 24 hours until 00:00, Wednesday 19 August 2026
Moderate to fresh westerly winds, occasionally strong in the south on Monday night and in the west on Tuesday night. Weather: Cloudy with rain moving southeastwards on Monday night. Clearing to showers on Tuesday morning.
Forecast issued at: 00:00, Monday 17 August 2026
All times are local unless specified
