Northern Ireland is to benefit from the continental heatwave for a few more days, after temperatures rose as high as 25.1C at Magilligan on Tuesday.
A spokesman for the Met Office said average temperatures across the north-west were around 23C; the south-east coast enjoying a somewhat cooler 18-19C.
Castlederg basked in 24.1C, while Derrylin saw 23.7C.
Today is set to be the second day of the mini-heatwave in the Province but tomorrow and Friday are also set to reach 20-21C, he added.
“It will be a few degrees cooler overnight from Friday, with some thundery showers and patchy rain on Saturday, and temperatures of 18-20C – Sunday reaching only 18C by comparison.
“Next week will be more unsettled with showers and temperatures in the high teens or perhaps reaching 20, which are overall more normal for this time of year.”
Typical temperatures for this time of year are 17-18C but a breeze coming up from the continent is bringing hot and humid air north, he added.
While Northern Ireland’s highest temperature yesterday was 25.1C, the rest of Great Britain was even hotter, with the south-east of England seeing 30C, Wales reaching 28.9C and the Scottish borders hitting 26.9C.
Public Health England yesterday warned the heat could be dangerous for older people, young children and the infirm.