Sea Area Forecast
Forecast valid from: 17:00, Wednesday 23 September 2026 until 18:00, Thursday 24 September 2026
Small Craft Warning
Southerly winds will reach force 6 at times tonight (Wednesday night) on Irish coasts from Valentia to Erris Head to Fair Head, extending tomorrow morning and afternoon (Thursday) to Irish coasts from Valentia to Malin Head to Carnsore Point.
Gale Warning
nil
Meteorological Situation at 15:00 UTC
Ireland lies in a light to moderate variable airflow with an anticyclone of 1028hPa centred just southwest of Valentia extending a ridge of high pressure over the country. Weather fronts associated with a depression of 977hPa centred in the mid-Atlantic approach the west of the country.
Small Craft Warning: In effect
Heavy Swell (>4m) : No
Forecast for Mizen Head to Erris Head to Fair Head
Wind: Imminent increasing southerly force 4 to 6. Soon increasing force 5 to 7, possibly touching gale force 8 at times. Later veering southwesterly and decreasing force 4 to 6 by the end of the period.
Weather: Imminent becoming cloudy with outbreaks of rain and drizzle soon. Some mist patches too.
Visibility: Reducing moderate or poor in precipitation or mist, otherwise good.
Forecast for Fair Head to Howth Head to Carnsore Point and for the Irish Sea
Wind: Imminent decreasing variable force 3 or less. Soon increasing southeasterly force 4 or 5. Later veering southerly force 4 to 6.
Weather: Cloudy to fair with isolated showers. Later becoming cloudy.
Visibility: Mostly good.
Forecast for Carnsore Point to Roches Point to Mizen Head
Wind: Imminent increasing southerly force 3 or 4. Soon increasing force 4 or 5. Later veering southwesterly.
Weather: Cloudy to fair with isolated showers. Soon becoming cloudy.
Visibility: Mostly good.
Outlook for a further 24 hours until 18:00, Friday 25 September 2026
Moderate to strong southwesterly winds in the west and northwest. Moderate to strong south to southwest winds in the east will become light to moderate variable through Friday. Light to moderate southwesterly winds in the south will veer northwesterly on Friday night, before backing southwesterly again on Friday afternoon. Weather: Outbreaks of rain and drizzle clearing southeastwards with scattered showers following.
Forecast issued at: 17:00, Wednesday 23 September 2026
All times are local unless specified
