Sea Area Forecast
Forecast valid from: 17:00, Thursday 27 August 2026 until 18:00, Friday 28 August 2026
Small Craft Warning
nil
Gale Warning
nil
Meteorological Situation at 15:00 UTC
Ireland lies in a light to moderate mostly easterly or northerly airflow generated by a complex area of low pressure with a centre of 1002hPa located northwest of Biscay. Associated frontal troughs lie over the south and east of the country.
Heavy Swell (>4m) : No
Forecast for Slyne Head to Rossan Point to Malin Head
Wind: Northeasterly force 3 or 4. Soon backing northerly. Decreasing force 2 to 4 by the end of the period.
Weather: Isolated showers, including some heavy with thunderstorms possible. Some mist and fog patches too.
Visibility: Reducing moderate or poor in precipitation or mist and fog.
Forecast for Malin Head to Belfast Lough to Howth Head and for the North Irish Sea
Wind: Northeasterly or variable force 2 to 4. Soon backing northerly or variable. Later backing westerly or northwesterly force 3 or 4, but force 4 to 6 in the North Channel.
Weather: Rain, heavy and persistent at times with thunderstorms possible. Later isolated showers. Some mist and fog patches too.
Visibility: Reducing moderate or poor in precipitation or mist and fog.
Forecast for Howth Head to Carnsore Point to Mizen Head and for the South Irish Sea
Wind: Imminent becoming southwest to west or variable force 2 to 4. Soon veering northwesterly or variable force 3 or 4. Later backing southwesterly force 3 to 5.
Weather: Rain, heavy and persistent at times with thunderstorms possible. Later isolated showers. Some mist and fog patches too.
Visibility: Reducing moderate or poor in precipitation or mist and fog.
Forecast for Mizen Head to Loop Head to Slyne Head
Wind: Imminent becoming northwesterly force 3 or 4. Later backing southwesterly force 2 to 4.
Weather: Rain, heavy and persistent at times with thunderstorms possible. Soon isolated showers. Some mist and fog patches too.
Visibility: Reducing moderate or poor in precipitation or mist and fog.
Outlook for a further 24 hours until 18:00, Saturday 29 August 2026
Mostly moderate to fresh westerly winds in the south, reaching strong at times on Saturday. Light variable winds in the west will increase light to moderate north to northwest on Saturday. Mostly light to moderate northerly or variable winds in the north. Light to fresh westerly winds in the east will become cyclonic variable through the period. Weather: Scattered showers or more persistent spells of rain spreading from the west through the period.
Forecast issued at: 17:00, Thursday 27 August 2026
All times are local unless specified
