Réamhaisnéis limistear na farraige

Forecast valid from: 00:00, Monday 03 August 2026 until 00:00, Tuesday 04 August 2026

Small Craft Warning

1. Southeast to east winds will reach force 6 or higher on Irish coasts from Mizen Head to Loop Head to Erris Head overnight and Monday morning.

2. Northeast winds will reach force 6 for a time overnight on Irish coasts from Carlingford Lough to Howth Head to Wicklow Head.

3. East to northeast winds will reach force 6 or higher on Irish coasts from Slyne Head to Bloody Foreland to Belfast Lough Monday afternoon and evening.

Gale Warning

nil

Meteorological Situation at 21:00 UTC

A complex and slow-moving depression of 1004hPa centred approximately 200 nautical miles southwest of Valentia generates a mostly moderate to fresh easterly airflow over Ireland. Associated fronts are embedded in the flow.

Small Craft Warning: In effect

Heavy Swell (>4m) : No

Wave Height Forecast

Forecast for Belfast Lough to Carnsore Point to Mizen Head and for the Irish Sea

Wind: Easterly force 4 or 5, occasionally force 6. Soon becoming mainly southeast. Decreasing variable force 3 or less north or Carnsore Point for a time later. Becoming mainly southerly or variable force 4 or 5, occasionally force 6 by the end of the period.

Weather: Cloudy with rain and drizzle. Rain or showers moving up from the south later, with thunderstorms possible. Mist patches also.

Visibility: Reducing moderate or poor in precipitation and mist, otherwise good.

Forecast for Mizen Head to Loop Head to Erris Head

Wind: Southeast to east force 4 to 6. Soon becoming easterly. Later decreasing southerly or cyclonic variable force 3 or 4.

Weather: Cloudy with rain and drizzle. Rain or showers moving up from the south later, with thunderstorms possible. Mist patches also.

Visibility: Reducing moderate or poor in precipitation and mist, otherwise good.

Forecast for Erris Head to Malin Head to Belfast Lough

Wind: Easterly force 3 or 4, occasionally force 5. Soon increasing east to northeast force 4 or 5. Later increasing force 4 to 6. Decreasing easterly force 4 or 5, occasionally force 6 by the end of the period.

Weather: Cloudy with rain and drizzle. Rain or showers moving up from the south later, with thunderstorms possible. Mist patches also.

Visibility: Reducing moderate or poor in precipitation and mist, otherwise good.

Outlook for a further 24 hours until 00:00, Wednesday 05 August 2026

Mostly moderate to fresh, occasionally strong cyclonic variable winds decreasing light to fresh Tuesday morning. Later increasing fresh to strong west to northwest on western and southern coasts. Weather: Rain or showers with thunderstorms possible.

Forecast issued at: 00:00, Monday 03 August 2026

All times are local unless specified