The Met Office has extended an amber warning against “extreme heat” in most of England and Wales to cover next Tuesday.
The unusually high temperature warning was previously issued to cover Sunday, but the Met Office has extended it twice in two days to cover both Monday and Tuesday.
The secretariat said: “Hot spells start on Sunday and can peak early next week, with widespread impact on people and infrastructure.
“It is likely to have a negative impact on the health of the entire population, not just those who are most vulnerable to extreme heat, leading to potential serious illness and life-threatening.”
Heat waves are the result of hot air flowing from the European continent to Great Britain.
Temperatures reached 31.7 degrees Celsius in Wisley, Surrey on Tuesday, dropping to 21 degrees Celsius overnight in some parts of London.
After a slight drop in temperature over the next few days, it rises over the weekend, with temperatures above 20 degrees Celsius on Sundays and reaching 30 degrees Celsius in some areas.
According to the UK Meteorological Agency, temperatures can peak above 35 degrees Celsius in central and southeast England, around 32 degrees Celsius in the areas covered by the warning, and peak temperatures on Mondays and Tuesdays. Is most likely to be seen.
Temperatures in the late twenties can also be seen in Northern Ireland and Scotland.
Meteorologist Annie Shuttleworth said: We could see some tropical nights as we are likely to see some areas, especially more urban areas in the south, above 20 ° C. “
Health officials have issued thermal health alerts to most of the country.
Dr. Agostinho Sousa of the UK Health Security Agency said:And 3 pm
“If you have vulnerable family, friends, or neighbors, make sure they know how to protect themselves from the warm weather.”
Ambulance service is already at the highest level of alert. The London Emergency Service called 999 only in the event of a life-threatening emergency, urging the public to rehydrate, avoid the sun during the hottest months of the day, and support it.
The Met Office also warned people about water safety accidents as “quite many people” are expected to visit beaches, lakes and rivers.
Lily Zhou and PA Media contributed to this report.