Sea Area Forecast
Forecast valid from: 00:00, Thursday 27 November 2025 until 00:00, Thursday 27 November 2025
Small Craft Warning
1. South to southwest winds will increase to force 6 or higher tonight ( Tuesday night) on all Irish coasts, becoming confined by tomorrow (Wednesday) morning to Irish coasts from Erris Head to Howth Head to Mizen Head. 2. Southerly winds will increase to force 6 on Wednesday evening and early Wednesday night on Irish coasts from Mizen Head to Erris Head to Carlingford Lough.
Gale Warning
Nil
Meteorological Situation at 21:00 UTC
Ireland lies in a moderate to strong southwesterly airflow, with high pressure of 1029hPa to the west of Iberia, low pressure of 997hPa centred over Iceland and another area of low pressure of 999hPa in the mid-Atlantic. An associated warm front approaches the west coast and will move eastwards over Ireland tonight and tomorrow morning.
Small Craft Warning: In effect
Heavy Swell (>4m) : Nil
Forecast for Irish coastal waters from Roches Point to Slyne Head to Malin Head
Wind: Southerly force 5 to 7 and occasionally gusty. Veering southwest imminent between Mizen Head and Erris Head and decreasing force 4 or 5. Soon decreasing southwest to west force 4 or 5. Later backing southerly and increasing force 5 or 6 and gusty.
Weather: Cloudy with outbreaks of rain and drizzle. Occasional mist and fog, becoming more widespread soon.
Visibility: Moderate to poor in rain, drizzle, mist and fog.
Forecast for Irish coastal waters from Malin Head to Howth Head to Roches Point and for the Irish Sea.
Wind: Increasing southerly force 5 or 6 and occasionally gusty imminent. Soon increasing force 7 at times in the east and on the Irish Sea. Veering southwest and decreasing force 4 or 5 on Wednesday afternoon. Backing south to southwest and increasing force 5 or 6 by the end of the period.
Weather: Becoming cloudy imminent, with outbreaks of rain and drizzle spreading eastwards imminent and soon. Occasional mist and fog soon in southern parts, becoming more widespread later.
Visibility: Mostly good at first. Decreasing moderate to poor in rain, drizzle, mist and fog.
Outlook for a further 24 hours until 00:00, Friday 28 November 2025
Wind: Southerly winds increasing fresh to near gale force and gusty on Wednesday night. Veering southwest on Thursday and increasing strong to gale force and gusty, strongest in the west and north, where winds will reach strong gale force at times. Weather: Cloudy with rain, drizzle, mist and fog. Becoming cloudy to fair from the west through Thursday morning and afternoon, with scattered showers following, especially into the west and north, some heavy and of hail.
Forecast issued at: 00:00, Thursday 27 November 2025
All times are local unless specified
