New heat alerts are to come into force as the UK braces for its fifth heatwave of the year, bringing scorching highs of 36C.
The yellow heat health alerts run from 9am on Saturday to 9pm on Tuesday and warn that the hot weather is likely to affect the wellbeing of the population.
The Met Office said temperatures will climb through the weekend as heatwave conditions return, with a high of 36C expected in parts of East Anglia and south-east England by Thursday.
There have been two record-breaking heatwaves, in May and June, that led to more than 2,800 excess deaths, and two more heatwaves in July that have fuelled drought and wildfires.
The highest temperature of the year was 38C recorded at Lingwood in Norfolk on June 28.
There have been 33 days so far this year when temperatures have exceeded 30C somewhere in the UK.
The record of 34 days – set in 1995 – is likely to be broken next week.
Forecasters said the weekend will see a north-south split in the weather with Scotland and Northern Ireland likely to see spells of heavy rain, while England and Wales will remain largely dry, sunny and increasingly warm.
Temperatures could reach 30C on Saturday, before climbing into the low 30s in southern and south-east England on Sunday.
Highs of up to 30C are possible across parts of England and Wales on Tuesday, increasing to 32C to 34C on Wednesday, with the highest temperatures currently expected on Thursday.
The UK Health Security Agency (UKHSA) has issued yellow heat health alerts for the East Midlands, West Midlands, South East, South West, East of England, Yorkshire and the Humber and London.
Meanwhile, the National Trust is asking people to sign a petition calling on the Government to make tackling climate change a national mission.
It comes after several wildfires have broken out in the UK over recent weeks, with large blazes at Dunwich Heath in Suffolk, Headon Warren on the Isle of Wight, Llanwonno in the Rhondda Valleys, South Wales, and the Cairngorms National Park in Scotland.
Fires are likely to become exceptionally severe on Sunday for almost all of the east and south-east of England, according to the Fire Severity Index. “Exceptional” severity is its highest ranking.
Temperatures expected to reach 36C as heatwave conditions return to UK