Réamhaisnéis limistear na farraige

Forecast valid from: 18:00, Wednesday 29 July 2026 until 18:00, Thursday 30 July 2026

Small Craft Warning

West to northwest winds will reach force 6 or higher overnight and Thursday morning on Irish coasts from Rossan Point to Malin Head to Belfast Lough.

Gale Warning

nil

Meteorological Situation at 15:00 UTC

A depression of 994 hPa centred to the northeast of Iceland extends a mostly moderate to fresh mainly southwest to west airflow over Ireland. Associated fronts are tracking southeastwards over the country.

Small Craft Warning: In effect

Heavy Swell (>4m) : No

Wave Height Forecast

Forecast for Valentia to Rossan Point to Belfast Lough

Wind: Increasing westerly force 4 or 5 imminent. Soon becoming northwest and increasing force 5 or 6 west of Rossan Point. Later decreasing westerly force 3 to 5.

Weather: Mainly fair with isolated showers. Scattered showers developing later, mainly in the north.

Visibility: Moderate or poor in showers, otherwise good.

Forecast for Belfast Lough to Carnsore Point to Valentia and for the Irish Sea

Wind: Southwest or variable force 2 to 4 and occasionally touching force 5. Veering west to northwest imminent. Later becoming southwest or variable.

Weather: Cloudy with occasional rain and drizzle and patchy mist, clearing eastwards soon. Soon becoming fair with showers spreading from the west later.

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

Outlook for a further 24 hours until 18:00, Friday 31 July 2026

Mostly moderate to fresh westerly winds. Weather: Scattered showers, mainly on west and north coasts. Some possibly heavy.

Forecast issued at: 18:00, Wednesday 29 July 2026

All times are local unless specified