The rise in temperature has forced the UK Health Security Agency to issue a Level 4 heat health alert – described as an “emergency” – while the Met Office has issued the UK’s first red extreme heat warning, both running Monday to Wednesday .
The capital’s scorching temperatures mean it will be warmer than Nassau in the Bahamas (32°C), Kingston in Jamaica (33°C), Malaga in Spain (28°C), Athens in Greece (35°C), Albufeira in Portugal (28C) and Dakhla in the US Western Sahara (24C).
Other areas of England will also experience hotter weather than holiday destinations, with highs of 37C forecast in the Midlands, 36C in East Anglia and 33C in the North West and North East.
It comes as new records were broken in Wales and Northern Ireland on Sunday.
Hawarden, a village in North Wales, reached 33C while Armagh in Northern Ireland reached 27.7C.
Tuesday, meanwhile, is set to be even hotter, with temperatures possibly reaching 40C – a new record for England.
Met Office scientists have said the 40-degree forecast is a result of climate change, warning that the 40-degree figure “could be up to 10 times more likely in the current climate than in a natural climate not dated.” influenced by human influence”.
Some schools in several counties, including Nottinghamshire and Hampshire, have confirmed they will close, while train companies have urged people not to travel on Monday and Tuesday.
Network Rail will close the East Coast Main Line between 12pm and 8pm on Tuesday for all locations between London King’s Cross and York and Leeds, warning passengers not to travel.
Network Rail Operations Manager Sam MacDougall said: “Closing the route to traffic is always a last resort but it is the right thing to do to keep people safe on Tuesday given the unprecedented heatwave forecast.
“Projected temperatures are well above what our infrastructure is designed to withstand and safety must come first.”
Additional emergency support for emergency services, such as Things like more call attendants and extra working hours have been put in place, while the leader of the NHS association said hospitals will be “really, really pressured” over the next few days.
Brits are being urged to stay indoors and wear sunscreen and a hat, stay in the shade and stay hydrated with water between 11am and 4pm during the hottest parts of the day.
Emergency services have also urged people to be cautious about cooling down after the body of a boy was recovered at Salford Quays in Greater Manchester in the early hours of Sunday morning.
Meanwhile, a search is underway after reports were made of a man spotted in a Northumberland river on Sunday.
A spokesman for the North East Ambulance Service said: “We were called at 4.12pm this afternoon to report concerns about a person in the water off Piper Road, Ovingham.
“We currently have seven resources on site but are unable to provide any further information at this time.”