Sea Area Forecast
Forecast valid from: 00:00, Monday 17 November 2025 until 00:00, Tuesday 18 November 2025
Small Craft Warning
Southwesterly winds, veering westerly, will increase to force 6 at times on Monday evening and Monday night, on Irish coasts from Erris Head to Bloody Foreland to Belfast Lough.
Gale Warning
Nil
Meteorological Situation at 21:00 UTC
Ireland lies in a moderate to fresh north to northeast airflow between an anticyclone of 1034hPa centred in the North Atlantic and a depression of 1008hPa centred over the northwest of the Iberian Peninsula.
Small Craft Warning: In effect
Heavy Swell (>4m) : Nil
Forecast for Irish coastal waters from Belfast Lough to Carnsore Point to Mizen Head and for the Irish Sea
Wind: Northeasterly force 4 or 5. Soon decreasing mostly force 4. Later decreasing variable force 3 or 4. Becoming mainly westerly force 4 towards the end of the period in the east.
Weather: Cloudy to fair with isolated showers.
Visibility: Mostly good, decreasing moderate in any showers.
Forecast for Irish coastal waters from Mizen Head to Loop Head to Slyne Head
Wind: Northeasterly force 4 or 5. Soon decreasing easterly force 4. Later decreasing variable force 3 or less. Becoming southwest force 4 or 5 by the end of the period, between Valentia and Slyne Head.
Weather: Cloudy to fair with isolated showers. Rain and drizzle towards the end of the period.
Visibility: Mostly good. Decreasing moderate to poor in precipitation.
Forecast for Irish coastal waters from Slyne Head to Malin Head to Belfast Lough
Wind: Northeasterly force 4 or 5, decreasing east to northeast mainly force 4 imminent. Soon variable force 3 or less. Later winds becoming southwest and increasing force 4 or 5, occasionally force 6, veering westerly west of Malin Head.
Weather: Cloudy to fair with isolated showers. Rain and drizzle later.
Visibility: Mostly good. Decreasing moderate to poor in precipitation.
Outlook for a further 24 hours until 00:00, Wednesday 19 November 2025
West or northwest winds will increase mostly moderate to strong on Monday night, strongest in the north, further increasing strong to near gale force on Tuesday afternoon, before veering northerly and increasing strong to gale force and gusty. Weather: Cloud and outbreaks of rain and drizzle spreading southeastwards on Monday night and Tuesday morning, followed by cloudy to fair weather on Tuesday with scattered showers.
Forecast issued at: 00:00, Monday 17 November 2025
All times are local unless specified
