Réamhaisnéis Náisiúnta

Issued at: 16 September 2025 04:51

TODAY - Tuesday 16th September

A dry and bright morning for most with just well scattered showers, more frequent in Ulster early on. Cloud and outbreaks of rain and drizzle will develop in the southwest later in the morning, gradually extending northeastwards through the day, turning heavy in the west and southwest later. However, the rain will not reach Ulster until night-time. Highest temperatures of 14 to 17 degrees in light to moderate westerly winds, backing southerly winds later in the afternoon and strengthening in the evening.

TONIGHT

Widespread outbreaks of rain tonight, heavy in places with spot flooding likely, especially in the west and southwest. The rain will mostly clear eastwards by morning with some patches of fog developing in southern areas. Lowest temperatures of 9 to 14 degrees with fresh and gusty southeasterly winds, veering southwesterly, strong near coasts.

TOMORROW - Wednesday 17th September

Largely dry but cloudy tomorrow morning with isolated showers and just limited sunny spells. Better sunny spells will develop from the south during the afternoon but cloud and showers may push in to southern areas during the evening. Highest temperatures of 15 to 19 degrees with fresh and gusty southwesterly winds, strong or near gale force near western and northern coasts. The winds will begin to ease from the south later in the day.

National Outlook

Wednesday night: Showery outbreaks of rain will push up from the south, mainly affecting Munster and Leinster with some heavy falls possible. Staying largely dry in Ulster and Connacht with the longest clear spells in the northwest. Lowest temperatures of 8 to 13 degrees in mostly light to moderate southwesterly winds, fresh at first in the north and west and strengthening near southern coasts by morning.

Thursday: Further showery outbreaks of rain likely in the south and east though with dry intervals at times. Drier and sunnier in the north and west with a few showers. Highest temperatures of 16 to 19 degrees generally with light to moderate southwesterly winds, fresher near southern and northwestern coasts.

Thursday night: Dry for most with isolated showers. However, showery outbreaks of rain may continue to affect southern and southeastern coastal areas. Lowest temperatures of 9 to 13 degrees in light to moderate southwesterly winds.

Friday: A mix of cloud and some sunny spells along with isolated showers for most. The best of the sunny spells will be in the north. Mostly cloudy though in southeastern areas with a continued chance of showery outbreaks of rain. Highest temperatures of 15 to 17 degrees in mostly light breezes.

Saturday: A good deal of uncertainty in the details at present. Most likely there will be a fair amount of dry weather with just some showers. However, there is a chance of a low pressure system moving northwards over the country bringing some heavy falls of rain.