UK has warmest start to May on record - but it's not expected to last

The UK has seen its warmest start to May on record as temperatures soared to over 29C in the spring sunshine.

The Met Office said 29.3C (84.7F) had been recorded at Kew Gardens in southwest London, passing the previous 1 May record of 27.4C (81.3F) set in Lossiemouth in 1990. Thursday was also the warmest day of the year so far, beating the previous high of 26.7C (80F) reached in Wisley, Surrey, on Wednesday.

Follow latest updates: May record broken But the heat is not expected to last for the bank holiday weekend, with cooler weather starting to drift in from the north on Friday. Temperatures are expected to ease by Friday and Saturday, meaning cooler conditions of 14C to 18C across the UK.

Stephen Dixon, a Met Office spokesman, said: "Temperatures tomorrow will be slightly reduced from what we've seen today, possibly 26 or 27 degrees in the far southeast of England through the day tomorrow." What has led to the hot spell? Forecasters said the hot spell has been due to the jet stream remaining stuck north of the country, allowing high pressure to settle. Last month was also the sunniest April in the UK since records began in 1910, with 47% more sunshine hours than the long-term meteorological average, and the third warmest April on record, according to provisional Met Office figures.

Rainfall was well below average for most of the UK last month, with just 56% of expected totals recorded. And Tyne and Wear had its second driest April on record, with only 7% of its usual rainfall.

Boy's body recovered from lake Meanwhile, the recovery of a 16-year-old boy's body from a lake in Nottingham prompted emergency services to warn about swimming in lakes and rivers. Chief Inspector David Mather, of Nottinghamshire Police, said: "I would like to take this opportunity to highlight this case as a reminder of the devastating consequences of entering open water - regardless of whether people do so deliberately or inadvertently." The London Fire Brigade said its crews responded to 565 water-related incidents last year and have already attended around 160 in the first quarter of this year, with incidents ranging from rescuing people to animals stranded on lakes and ponds.

'Water temperatures can be dangerously cold' Assistant commissioner for prevention and protection Craig Carter said. "Even when the sun is shining, water temperatures can be dangerously cold.

Cold water shock can affect anyone, no matter how fit or experienced they are. It can lead to water inhalation, and, in the worst cases, drowning." The Royal National Lifeboat Institution (RNLI) offered similar warnings, advising those planning to swim at a lifeguarded beach to swim between the red and yellow flags.

Fire services warned that the warm weather means there is a "heightened" risk of grass and wildfires which can spread more easily during the dry spell, as firefighters have been battling what they described as a large wildfire in the Peak District. The RAC also cautioned drivers on the roads, with spokesman Rod Dennis saying breakdowns are expected to "soar.