Réamhaisnéis Náisiúnta

Issued at: 21 May 2026 23:30

TONIGHT

Tonight will be cloudy and humid with patches of mist and drizzle, but overall a lot of dry weather away from southern and western fringes. Another mild night, with lowest temperatures of 11 to 14 degrees, in moderate southerly breezes.

TOMORROW - Friday 22nd May

Friday will begin mild and cloudy with patches of mist and drizzle across the country. While some hazy sunny spells will gradually develop, some showery rain will spread eastwards in the afternoon and evening, heavy in parts of Ulster but light and patchy elsewhere. Fairly warm with highest temperatures of 17 to 20 degrees generally in moderate southerly breezes. However, it will be somewhat cooler for southern coastal areas, where sea-fog may encroach.

National Outlook

Overview: Temperatures will continue to trend upwards with warm or very warm conditions. High pressure will bring mostly dry and settled weather too. Sea fog may impinge in some areas however.

Friday night: Any lingering showers will die out early on Friday night with a dry and cloudy night following. Mist and fog may set in though, especially for southeast counties. Lowest temperatures 9 to 12 degrees, in just light southwest or variable breezes.

Saturday: Dry with warm sunny spells developing, and no more than moderate southwest breezes. Highest temperatures of 17 to 21 degrees generally, though it will be a little cooler in some coastal fringes.

Sunday: Similarly, it will be another warm day with spells of sunshine. However, cloudier skies will build in parts too. Highest temperatures of 18 to 22 degrees, in just light southerly or variable breezes.

Early Next Week: High pressure looks set to dominate into early next week, bringing a continuation of the mostly settled spell with warm or very warm feeding up across the country, on a southeast continental airflow.