Réamhaisnéis limistear na farraige
Forecast valid from: 10:00, Thursday 16 April 2026 until 12:00, Friday 17 April 2026
Small Craft Warning
Southerly winds will reach force 6 or higher today (Thursday), tonight and Friday on all Irish coasts.
Gale Warning
South to southwest winds will occasionally reach gale force 8 on Friday morning on Irish coastal waters from Valentia to Slyne Head to Erris Head.
Atlantic Swell
On west and southwest coasts.
Meteorological Situation at 09:00 UTC
A weak transient ridge of high pressure covers the country,ahead of a developing low of 995hPa centred around 560 nautical miles southwest of Valentia. Its associated fronts will gradually feed up from the southwest today and overnight with a strong to gale force southwest flow into Friday.
Gale Warning: In effect
Small Craft Warning: In effect
Heavy Swell (>4m) : yes
Forecast for Valentia to Erris Head to Malin Head
Wind: Southerly force 5 or 6. Force 5 to 7 imminent. Soon increasing force 6 or 7. Later further increasing southwest force 6 to gale force 8.
Weather: Cloudy with rain and drizzle. Some mist too. Fair spells and scattered showers later, some heavy for west and northwest areas.
Visibility: Reducing moderate or poor precipitation or mist. Later improving good outside of showers.
Forecast for Malin Head to Wicklow Head to Valentia and for the Irish Sea
Wind: Southerly force 4 or 5. Force 4 or 6 imminent. Sooon gradually increasing southwest force 5 to 7.
Weather: Cloudy with rain and drizzle. Some mist too. Fair spells and scattered showers later, some heavy for west and northwest areas.
Visibility: Reducing moderate or poor precipitation or mist. Later improving good outside of showers.
Outlook for a further 24 hours until 12:00, Saturday 18 April 2026
Ireland will lie in a mostly fresh west to southwest flow with low pressure in situ for a time to the north-west of the country. Embedded trough lines will feed down from the northwest. High pressure will begin to push up from the southwest later. Some heavy and locally thundery showers for the north and northwest, otherwise becoming mostly fair.
Forecast issued at: 10:00, Thursday 16 April 2026
All times are local unless specified
