Sea Area Forecast
Forecast valid from: 00:00, Tuesday 20 January 2026 until 00:00, Wednesday 21 January 2026
Small Craft Warning
Cyclonic variable winds will reach force 6 or higher at times on all Irish coasts on Tuesday.
Gale Warning
East to southeast winds will reach gale force 8 at times on Irish coastal waters from Malin Head to Carnsore Point to Erris Head and on the Irish Sea on Tuesday.
Atlantic Swell
On Atlantic coasts on Tuesday morning and afternoon.
Meteorological Situation at 21:00 UTC
A depression of 991hPa centred approximately 140 nautical miles west of Valentia generates a mainly moderate to strong southeasterly airflow over Ireland. The depression will track across the country on Tuesday.
Gale Warning: In effect
Small Craft Warning: In effect
Heavy Swell (>4m) : yes
Forecast for Irish coastal waters from Wicklow Head to Roches Point to Slyne Head
Wind: Southeasterly or cyclonic variable force 6 to gale force 8 imminent, but decreasing force 5 or 6 between Roches Point and Loop Head. Soon becoming southeasterly force 5 to 7. Later becoming cyclonic variable force 6 or 7, occasionally reaching gale force 8. Decreasing force 5 or 6 by the end of the period.
Weather: Rain, drizzle and mist.
Visibility: Decreasing moderate or poor in precipitation and mist.
Forecast for Irish coastal waters from Slyne Head to Fair Head to Wicklow Head and for the Irish Sea
Wind: Southeasterly force 5 or 6 imminent. Soon increasing east to southeast force 6 or 7, occasionally reaching gale force 8. Later becoming variable force 3 or 4 between Slyne Head and Erris Head.
Weather: Fair with isolated showers imminent. Rain, drizzle and mist soon.
Visibility: Decreasing moderate or poor in precipitation, and mist.
Outlook for a further 24 hours until 00:00, Thursday 22 January 2026
Fresh to near gale force southerly winds becoming southeasterly or cyclonic variable on Wednesday and occasionally reaching gale force. Weather: Rain and drizzle.
Forecast issued at: 00:00, Tuesday 20 January 2026
All times are local unless specified
