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19 Sept 2025

Cracker of a day! Hottest county in Ireland revealed following Tuesday's sun blast

Temperatures are set to soar this week

Cracker of a day! Hottest county in Ireland revealed following Tuesday's sun blast

This week has seen the return of the glorious sunshine and temperatures that are steadily rising in what may become a heatwave, according to experts.

Tuesday saw the hottest temperatures that are to be expected this week and Carlow has come out the winner of Ireland's hottest county with Oak Park hitting a swealtering 28.1 degrees celcius.

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Carlow weatherman Alan O'Reilly posted the county ranking on his social media on Tuesday evening with Carlow hitting the top spot and Mount Dillon in Roscommon following closely behind with a sizzling 28 degrees.

In the last spot was Johnstown Castle in Wexford with a very respectable 22.3 degrees.

The good weather is set to continue this week however Met Éireann has issued a thunderstorm warning for Clare, Kerry and Limerick with localised flooding, lightning damage, and difficult travelling conditions possible in some areas. The warning is in place from 3pm today until 9pm tonight.

For the rest of Ireland, the week looks set to be warm and humid with plenty of dry weather, though some showery interludes at times.

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Today

Today will be warm or very warm and humid today with sunny spells. Showers will push up from the southwest through the afternoon and evening, mainly over Munster and Connacht. Some will be heavy with thunderstorms possible. Highest temperatures of 21 to 27 degrees with light to moderate southerly or variable winds.

Showers will continue to move up over the country tonight, heavy and possibly thundery in places. Turning mainly dry in the southwest later. Very mild with temperatures not falling below 14 to 17 degrees, in light southwesterly or variable breezes. Some mist and fog patches too.

Thursday

A good deal of cloud to start tomorrow with scattered showers, especially in the midlands, north and east with some possibly heavy. Better sunshine breaking through in the afternoon and evening as any showers ease. Highest temperatures of 19 to 25 degrees in light to moderate westerly breezes.

Mostly dry overnight as winds fall light and variable, allowing areas of mist and fog to form. Lowest temperatures of 11 to 15 degrees.

Friday

Sunny spells and dry, apart from a few isolated showers. Highest temperatures of 19 to 26 degrees with light to moderate northeasterly or variable breezes.

Saturday

Saturday will start mainly dry with sunny spells. During the afternoon, some showers are likely to develop in the southwest, which could turn heavy or possibly thundery, with the showers edging further northwards over the country in the evening and overnight. Highest temperatures of 20 to 26 degrees in moderate easterly breezes, and very mild and muggy overnight.

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Sunday

Sunday will bring sunny spells and scattered showers which could turn heavy or thundery during the afternoon and evening, and will continue in parts overnight. High's on Sunday 19 to 26 , warmest in the midlands and west, in moderate east to southeast breezes.

Monday

Monday will also bring sunny spells and some showers to parts which could be heavy or thundery. Temperatures in the low to mid 20's, a little cooler along the east and south coast, with onshore breezes.

 

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