Sea Area Forecast
Forecast valid from: 17:00, Wednesday 25 March 2026 until 18:00, Thursday 26 March 2026
Small Craft Warning
Northwesterly winds will reach force 6 or higher this evening and early tonight (Wednesday) on all Irish coasts, becoming confined to coasts from Howth Head to Carnsore Pt to Roches Pt for a time after midnight.
Gale Warning
Nil
Atlantic Swell
On Atlantic coasts from this evening to early Thursday afternoon.
Meteorological Situation at 15:00 UTC
A depression of 974 hPa centred over southern Sweden, maintains a strong to gale force unstable northwesterly airflow over Ireland, with showery troughs embedded in the flow. The airflow will ease as a ridge of high pressure builds from the west.
Small Craft Warning: In effect
Heavy Swell (>4m) : yes
Forecast for Mizen Head to Erris Head to Fair Head and for the Irish Sea
Wind: Northwesterly force 6 or 7 and gusty, decreasing force 4 or 5 imminent, soon backing west to southwest force 3 or 4, later backing south to southwest and increasing force 5 to 7
Weather: Showers this evening, mostly dying out early tonight. Rain and drizzle developing by dawn on Thursday and continuing through the day
Visibility: Good, decreasing moderate or poor in showers and in rain on Thursday
Forecast for Fair Head to Wicklow Head to Mizen Head
Wind: Northwesterly force 6 or 7 and gusty, decreasing force 5 to 7 imminent, soon decreasing force 4 or 5, later backing westerly force 3 or 4, becoming south to south-west by the end of the period.
Weather: Showers this evening. Becoming mainly fair tonight and early Thursday. Rain and drizzle spreading eastwards on Friday morning.
Visibility: Good, decreasing moderate or poor in showers and in rain on Thursday
Outlook for a further 24 hours until 18:00, Friday 27 March 2026
Fresh to strong south to southwest winds veering moderate to fresh north-westerly through Thursday night and Friday morning. Westerly winds increasing strong on west and north-west coasts on Friday afternoon. Rain on Thursday night clearing to the south-east on Friday morning with showers following.
Forecast issued at: 17:00, Wednesday 25 March 2026
All times are local unless specified
