We sent along our photographer to find some people enjoying fun in the sun.
7.
In England on Sunday, 31.6C (88.88F) was recorded in Heathrow, overtaking Saturday’s record-breaking 30.3C (86.54F) recorded in Coton in the Elms, Derbyshire.
8.
The Danila family, Camilia, Caro (6) and Len
9.
Annabelle Steele (6) on Skippy the donkey
10.
Wales recorded 30.2C (86.36F) in Cardiff, compared with 29.6C (85.28F) reached in Usk, Monmouthshire, on Saturday.
11.
The long range forecast for next weekend suggests spells of rain or showers are likely for many areas, with temperatures easing back closer to normal.
12.
Forecasters also warn that some heavy rain or thunderstorms are possible.