Photographs from the day when high temperatures are forecast across the UK, with London set to be one of the hottest places in the world.
Tom Nicholson / Reuters
The Sun rises in Mevagissey Harbour, in Cornwall, on the day UK temperatures could hit 41C.
Tom Nicholson / Reuters
Nearby, fishermen are out to land an early catch.
Ben Birchall/PA
In Penzance, Cornwall, swimmers took to the water just after sunrise.
Geoffrey Swaine/REX/Shutterstock
A homeowner covers the front windows to try to keep out the sunshine.
Geoffrey Swaine/REX/Shutterstock
A country path in Dunsden, Oxfordshire, is dry and cracked because of the lack of rain in the recent hot spell.
Ben Stevens/PinPen
A newborn Bolivian squirrel monkey keeps cool at Chessington Zoo, in Surrey.
Dominic Lipinski / PA
At the Royal Botanic Gardens, Kew, in south-west London, horticulture student Muhammed Ismail Moosa waters the plants in the Palm House.
Tom Wren / SWNS
Paddleboarders make the most of the cooler morning, in Bristol.
John Sibley / Reuters
Police horse Zorro drinks water from a bucket on Whitehall, in central London.
Katielee Arrowsmith / SWNS
Joanne Dunwell and her eight-month-old daughter stay cool in the ponds in Holyrood Park, Edinburgh.
John Sibley / Reuters
A soldier of the Queen's Guard is given drinking water outside Buckingham Palace, in central London.
Steve Parsons / PA
A woman keeps cool by dipping her feet in the River Thames near Chertsey, in Surrey.
Martin Dalton/REX/Shutterstock
Visitors to Cambridge take to the River Cam.
Liam McBurney/PA Wire
Jasmine Bowers with her daughter, who is eating a lollipop outside their home in north Belfast.
Leon Neal / Getty Images
Assistant horticulturist Katie Martyr checks the readings for the previous 24 hours on Monday morning at the Cambridge University Botanic Garden, which previously recorded the UK's highest temperature of 38.7C (101F ) in July 2019.
Leon Neal / Getty Images
Elsewhere at the Cambridge University Botanic Garden, beekeepers check on the beehives. They add extra water pots and place cardboard on top of the hives to help mitigate the impact of extreme heat.
Tom Nicholson / Reuters
People swim in the tidal pool at Perranporth Beach in Cornwall.
Aaron Chown / PA
A woman keeps cool beside a water sprinkler outside Queen Elizabeth II Centre in central London.
ANDY RAIN/EPA-EFE
People sit in a children's paddling pool which was filled by a council parks vehicle in central London.
Dominic Lipinski/PA
A man walks in the sun in Greenwich Park on what is already the hottest day of the year across the UK.
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Tom Nicholson / Reuters
Tom Nicholson / Reuters
Ben Birchall/PA
Geoffrey Swaine/REX/Shutterstock
Geoffrey Swaine/REX/Shutterstock
Ben Stevens/PinPen
Dominic Lipinski / PA
Tom Wren / SWNS
John Sibley / Reuters
Katielee Arrowsmith / SWNS
John Sibley / Reuters
Steve Parsons / PA
Martin Dalton/REX/Shutterstock
Liam McBurney/PA Wire
Leon Neal / Getty Images
Leon Neal / Getty Images
Tom Nicholson / Reuters
Aaron Chown / PA
ANDY RAIN/EPA-EFE
Dominic Lipinski/PA
