The UK has seen the warmest start to May on record as temperatures continue to soar, prompting warnings of wildfires and the "hidden dangers" of open water swimming.Kew Gardens, in south-west London, registered 28C on Thursday, the Met Office said, taking it past the previous May 1 record high temperature of 27.4C at Lossiemouth in Moray in 1990.

The UK has seen the warmest start to May on record as temperatures continue to soar, prompting warnings of wildfires and the "hidden dangers" of open water swimming.Kew Gardens, in south-west London, registered 28C on Thursday, the Met Office said, taking it past the previous May 1 record high temperature of 27.4C at Lossiemouth in Moray in 1990.