National Forecast

Issued at: 31 August 2025 05:09

TODAY - Sunday 31st August

Breezy today and while there'll be a good deal of dry weather across the eastern half of the country at first this morning, showers further west will continue to extend eastwards, some of them heavy at times. A more organised spell of rain in the northwest and west will gradually spread eastwards through the day too. There's the chance of a few isolated thunderstorms, especially further to the northwest and west, while some localised flooding is possible, mainly in the northwest, where the rainfall will be most persistent. Highest temperatures of 14 to 18 degrees in mostly fresh and gusty south to southwesterly winds, strong at times in Atlantic coastal parts, with the winds tending to moderate inland later on.

TONIGHT

Further showers will continue to feed in from the west overnight, merging into longer spells of rain at times in the northwest, turning heavy in places. Good dry spells will develop though in eastern parts. Lowest temperatures of 11 to 14 degrees with mostly moderate, occasionally fresh, southwest to west winds, strong along western coasts.

TOMORROW - Monday 1st September

Tomorrow, Monday, will bring some sunny spells and fairly widespread showers, some of those heavy. The showers will ease in the evening and become mostly confined to the west. Highest temperatures of 14 to 18 degrees with moderate to fresh westerly winds, decreasing light to moderate southwesterly through the evening.

National Outlook

OVERVIEW: Remaining unsettled with spells of rain and showers. Feeling cooler than recent days with temperatures reaching the mid to high teens.

Sunday night: Showers continue to feed in from the west on Sunday night, merging into longer spells of rain at times in the northwest and west, turning heavy in places. Clear spells and scattered showers elsewhere. Lowest temperatures of 10 to 13 degrees with moderate to fresh west to southwest winds, strong along Atlantic coasts.

Monday: Sunny spells and widespread showers on Monday. Showers will turn heavy and possibly thundery at times before easing in the evening and becoming mostly confined to the west. Highest temperatures of 14 to 18 degrees with moderate to fresh westerly winds, easing light to moderate through the evening.

Monday night: Showers will continue to feed in from the Atlantic but will stay mostly confined to the west and northwest. Largely dry with clear spells elsewhere, though it may become cloudier in the south towards morning with a chance of rain clipping southern coastal areas. Lowest temperatures of 9 to 12 degrees with mostly light southerly winds.

Tuesday: Showers continuing to feed in from the west on Tuesday, though not as heavy and widespread as preceding days. Spells of sunshine too, though more persistent cloud and a longer spell of rain may continue to affect southern and southeastern coastal areas. Highest temperatures of 15 to 18 degrees with light to moderate southerly winds veering northwesterly through the day.

Wednesday: Current indications show another unsettled day on Wednesday with further showers and the chance of a more persistent spell of rain moving across the south. Highest temperatures of 15 to 17 degrees with mostly light westerly or variable winds.

Further outlook: A good deal of uncertainty in the details looking further ahead, but there is a signal for unsettled weather to continue with further spells of rain and showers.