The UK recorded the hottest day of the year after the temperature Southeast on Tuesday afternoon reached a maximum temperature of 27.5 degrees Celsius (81.5 degrees).
The highest temperature is recorded at Heathrow, Meteorological Bureau said.
The figure means it was warmer in the UK than in some popular holiday destinations such as Santorini 26 degrees heat only on Tuesday.
But clouds and heavy rains in the west are expected to spread to central Britain on Tuesday night, the Bureau of Meteorology said.
The Meteorological Bureau said the hot weather is due to air mass from the south, which brings soft air, especially affecting areas in the southeast.
However, he predicts that temperatures will slowly decrease over the course of the week and air mass movement, bringing fresh air and temperatures closer to the average for this time of year.
The previous highest temperature recorded so far this year was 23.6C (73.48F). FavershamKent, May 6th.