Sea Area Forecast
Forecast valid from: 12:00, Tuesday 26 August 2025 until 12:00, Wednesday 27 August 2025
Small Craft Warning
1. Southwesterly winds will reach force 6 or higher at times today on coasts from Wicklow Head to Valentia to Malin Head. 2. Southerly or cyclonic winds will reach force 6 or higher this evening and tonight on all Irish coasts.
Gale Warning
South to southeast or cyclonic winds will occasionally reach gale force this evening and tonight on Irish coastal waters from Roches Point to Slyne Head to Malin Head.
Atlantic Swell
On Atlantic coasts.
Meteorological Situation at 09:00 UTC
A depression of 975hPa, centred to the northwest of Ireland, generates a fresh to strong southwest airflow over the country. A secondary wave depression will approach from the southwest later today, tracking up along west coast tonight, with its associated front crossing the country.
Gale Warning: In effect
Small Craft Warning: In effect
Heavy Swell (>4m) : yes
Forecast for Irish coastal waters from Hook Head to Loop Head to Malin Head
Wind: Southwesterly force 5 or 6 and gusty. Soon increasing southerly or cyclonic force 6 or 7, occasionally reaching gale force 8. Later decreasing southwesterly force 5 or 6.
Weather: Fair to cloudy with scattered showers. Heavy or thundery rain developing soon, followed by scattered showers later.
Visibility: Moderate or poor in rain or showers. Otherwise good.
Forecast for Irish coastal waters from Malin Head to Howth Head to Hook Head and for the Irish Sea
Wind: South to southwest force 4 or 5 and occasionally force 6. Later increasing south to southeast force 5 to 7. Decreasing southwest force 4 or 5 by the end of the period.
Weather: Fair to cloudy with scattered showers. Heavy or thundery rain later.
Visibility: Moderate or poor in rain or showers. Otherwise good.
Outlook for a further 24 hours until 12:00, Thursday 28 August 2025
Fresh or strong southwest to west winds, increasing strong to near gale force in western sea areas during Thursday. Weather: Fair to cloudy with occasional showers, some heavy and prolonged, especially in the west.
Forecast issued at: 12:00, Tuesday 26 August 2025
All times are local unless specified
