UK heatwave: Saturday likely to be hottest day of 2023, according to Met Office - when will temperatures drop?

September’s delayed heatwave is likely to peak this weekend with temperatures set to soar as high as 33C in London, according to the Met Office. Forecasters say Saturday (September 9) it is likely to be the hottest day of the year - beating the previous 2023 record at 32.2C.

An amber heat warning issued by the UK Health Security Agency (UKHSA) for most parts of England is set to remain in place until Sunday evening (September 10) at 9pm. It means that impacts are likely to be felt across the health service, with those aged above 65 or those with pre-existing respiratory or cardiovascular disease at greater risk, - potentially putting more stress under the NHS.