Sea Area Forecast
Forecast valid from: 00:00, Saturday 19 July 2025 until 00:00, Sunday 20 July 2025
Small Craft Warning
Southeasterly or cyclonic variable winds will occasionally reach force 6 or higher on Saturday on Irish coasts from Carnsore Pt to Mizen Head to Loop Head and will extend to coasts from Loop Head to Slyne Head in the early evening.
Gale Warning
Nil
Meteorological Situation at 21:00 UTC
A complex area of low pressure of 1001 hPa lies to northwest of Ireland and maintains a mostly moderate southerly airflow over the country. A developing depression will become slow moving near the southwest coast on Saturday. Associated fronts will move slowly northwards.
Small Craft Warning: In effect
Heavy Swell (>4m) : Nil
Forecast for Irish coastal waters from Carnsore Pt to Mizen Head to Slyne Head
Wind: South to southwest force 2 to 4, backing south to southeast imminent, soon backing east to southeast and increasing force 4 to 6, later becoming cyclonic variable force 4 to 6.
Weather: Fair at first. Rain developing in the southwest early on Saturday and extending to all areas, heavy at times with isolated thunderstorms possible.
Visibility: Mostly good, decreasing moderate or poor in rain.
Forecast for Irish coastal waters from Slyne Head to Rossan Pt to Fair Head
Wind: Southerly force 3 or less, backing east to southeast imminent, soon becoming easterly force 3 or 4, later backing northeasterly.
Weather: Fair apart from a few showers
Visibility: Good, decreasing moderate or poor in any showers.
Forecast for Irish coastal waters from Fair Head to Howth Head to Carnsore Pt and for the Irish Sea
Wind: Southerly force 2 to 4, backing south to southeast imminent, later becoming southeasterly, and further becoming easterly.
Weather: Fair apart from a few showers. Rain in the south later on Saturday.
Visibility: Good, decreasing moderate or poor in showers or rain.
Outlook for a further 24 hours until 00:00, Monday 21 July 2025
Fresh to strong easterly winds on Munster and Connacht coasts, becoming cyclonic variable and decreasing moderate to fresh on Sunday. Moderate to fresh east to northeast winds on Leinster and Ulster coasts, becoming fresh northerly on Ulster coasts on Sunday. Rain spreading slowly northwards with showers following, heavy at times with isolated thunderstorms possible.
Forecast issued at: 00:00, Saturday 19 July 2025
All times are local unless specified
