Réamhaisnéis limistear na farraige

Forecast valid from: 12:00, Thursday 18 June 2026 until 12:00, Friday 19 June 2026

Small Craft Warning

1. Southerly winds will reach force 6 today (Thursday) on Irish coasts from Carlingford Lough to Howth Head to Carnsore Point.

2. Southerly winds will reach force 6 or higher (Thursday night) and for a time on Friday morning on coasts from Belfast Lough to Howth Head to Roches Point.

Gale Warning

Nil

Meteorological Situation at 09:00 UTC

A slow-moving depression of 992 hPa about 400 NM to the northwest of Belmullet, maintains a moderate to fresh south to southwest airflow over Ireland. Associated waving frontal troughs will move up from southwest.

Small Craft Warning: In effect

Heavy Swell (>4m) : No

Wave Height Forecast

Forecast for Fair Head to Howth Head to Roches Point and for the Irish Sea

Wind: Southerly force 4 to 6. Soon increasing force 5 to 7, strongest for eastern areas. Decreasing force 3 to 5 towards the end of the period.

Weather: Cloudy with occasional rain,heavy at times, especially tonight and early Friday. Mist too.

Visibility: Decreasing moderate or poor at times.

Forecast for Roches Point to Slyne Head to Fair Head

Wind: Southwesterly or variable mainly force 2 or 3.

Weather: Cloudy with rain,heavy at times, especially this evening and overnight. Mist and fog too.

Visibility: Decreasing moderate or poor at times.

Outlook for a further 24 hours until 12:00, Saturday 20 June 2026

Waving weather fronts will gradually push off into the Irish Sea on Friday afternoon with high pressure building from the south. Lingering rain for eastern areas will give way to fair spells and just well scattered showers with mostly moderate west to southwest winds.

Forecast issued at: 12:00, Thursday 18 June 2026

All times are local unless specified