Sea Area Forecast
Forecast valid from: 06:00, Sunday 22 March 2026 until 06:00, Monday 23 March 2026
Small Craft Warning
nil
Gale Warning
nil
Atlantic Swell
On western and northwestern coasts.
Meteorological Situation at 03:00 UTC
Ireland lies in a mostly light to moderate west to south-west airflow with high pressure over the mid-Atlantic and a depression of 975hPa centred south of Iceland. A weak frontal trough associated with the depression will move southeastwards over the country through the period.
Heavy Swell (>4m) : yes
Forecast for Mizen Head to Erris Head to Fair Head
Wind: Imminent veering northwest to north force 3 or 4, occasionally reaching force 5. Later becoming variable force 2 or 3. Increasing southerly force 3 to 5 by the end of the period.
Weather: A mix of cloud and clear spells with isolated patches of rain and drizzle. Some mist and fog patches too.
Visibility: Decreasing moderate or poor in precipitation or mist and fog, otherwise good.
Forecast for Fair Head to Carnsore Point to Mizen Head and for the Irish Sea
Wind: Imminent becoming west to northwest force 2 to 4. Soon becoming northerly force 3 to 5. Decreasing variable force 2 or 3 by the end of the period.
Weather: A mix of cloud and clear spells with isolated patches of rain and drizzle. Some mist and fog patches too.
Visibility: Decreasing moderate or poor in precipitation or mist and fog, otherwise good.
Outlook for a further 24 hours until 06:00, Tuesday 24 March 2026
Light to moderate variable winds will become southwesterly and gradually increase mostly fresh to strong through Monday, reaching near gale force and possibly gale force in the northwest. Weather: Variable cloud with isolated patches of rain and drizzle at first. Becoming cloudy on Monday evening with outbreaks of rain and drizzle spreading southeastwards on Monday night.
Forecast issued at: 06:00, Sunday 22 March 2026
All times are local unless specified
