Sea Area Forecast
Forecast valid from: 06:00, Sunday 14 December 2025 until 06:00, Monday 15 December 2025
Small Craft Warning
South or southwest winds will reach force 6 or higher at times on all Irish coasts this morning (Sunday) and for a time this afternoon before becoming confined to Irish coasts from Fair Head to Carnsore Point to Mizen Head later.
Gale Warning
South to southwest winds will reach gale force 8 at times this morning and afternoon (Sunday) on Irish coastal waters from Belfast Lough to Wicklow Head to Roches Point and on the Irish Sea becoming confined to Irish coastal waters from Belfast Lough to Carlingford Lough to Howth Head and the Irish Sea later.
Atlantic Swell
On Atlantic coasts.
Meteorological Situation at 03:00 UTC
A depression of 965hPa centred just off the southeast coast of Iceland generates a strong to gale force southwesterly airflow over Ireland. Associated frontal troughs are embedded in the flow.
Gale Warning: In effect
Small Craft Warning: In effect
Heavy Swell (>4m) : yes
Forecast for Irish coastal waters from Fair Head to Carnsore Point to Mizen Head and for the Irish Sea
Wind: South to southwest force 6 to gale force 8, imminent increasing force 7 to gale force 8. Soon decresing force 6 to gale force 8. Later veering north to northwest or variable force 2 to 4, but maintaining southwest force 5 or 6 in the east Irish Sea.
Weather: Outbreaks of rain and drizzle clearing southeastwards later. Areas of mist and fog.
Visibility: Reducing moderate or poor in precipitation, mist and fog.
Forecast for Irish coastal waters from Mizen Head to Erris Head to Fair Head
Wind: South to southwest force 6 or 7 and gusty imminent. Soon decreasing westerly or variable force 3 to 5. Later increasing southwest to west force 4 or 5, occasionally force 6 by the end of the period.
Weather: Outbreaks of rain and drizzle clearing southeastwards later. Areas of mist and fog.
Visibility: Reducing moderate or poor in precipitation, mist and fog.
Outlook for a further 24 hours until 06:00, Tuesday 16 December 2025
Mainly light to moderate northwest winds on eastern and southern coastal waters. Moderate to fresh west to southwest winds on western and northern coastal waters, increasing fresh to strong by Tuesday morning. Weather: Any remaining rain in the southeast will clear eastwards by Monday afternoon leaving a mix of clear spells and showers.
Forecast issued at: 06:00, Sunday 14 December 2025
All times are local unless specified
