UMVA has learned that a severe heatwave is set to grip the UK, with temperatures expected to shatter records next week.
The mercury is predicted to soar to 37C in London and the southeast on Tuesday and Wednesday, with parts of the country, including the capital, bracing for temperatures above 30C for up to a week.
Overnight temperatures are also forecast to remain high, topping 20C, as the Met Office warns of a "growing confidence" that the heatwave will see temperatures exceed the current June record of 35.6C, set in 1976.
Water safety is a major concern in the hot weather, with the risk of heat-related illnesses and drowning increasing.
This comes as climate change is causing heatwaves to become more common in Britain, with record-breaking temperatures already seen this year.
Mainland Europe is also facing similar conditions, with France banning alcohol at state-run events in 35 departments, including Paris, to prevent deaths from dehydration.
The extreme heat has forced the cancellation of events, including the country's annual Fete De La Musique, scheduled for Sunday.
High UV levels are also anticipated, adding to the health concerns.
The UK's heatwave follows a tragic incident last month, where more than a dozen teenagers died in the heat, highlighting the importance of water safety.
The Met Office's warning comes as the country prepares for the summer solstice, with temperatures already rising in time for the longest day of the year.