Another heatwave is expected to hit London next week, with temperatures soaring above 28°C for five consecutive days, according to the BBC's 14-day weather forecast. The capital has already experienced consistently high temperatures above 29°C in recent weeks, and the hot weather is set to return from Wednesday, July 29.
What defines a heatwave?
To be classified as a heatwave, an area must meet a local threshold temperature for three or more consecutive days. For London, the threshold is 28°C, while in Scotland and Wales it is 25°C. The upcoming period will see London well above this mark, with temperatures ranging from 28°C to 30°C.
Exact dates and temperatures
The heatwave will officially begin on Wednesday, July 29, with temperatures reaching 28°C. The forecast for the following days is:
- Wednesday, July 29: 28°C, sunny intervals and a gentle breeze
- Thursday, July 30: 28°C, sunny and gentle breeze
- Friday, July 31: sunny and a gentle breeze
- Saturday, August 1: 29°C, sunny and a gentle breeze
- Sunday, August 2: 30°C, sunny and gentle breeze
Impact of previous heatwaves
During the last heatwave at the beginning of July, London was issued multiple weather warnings due to extreme heat. Train services faced significant disruptions, with several cancellations across the entire TfL network as the infrastructure struggled to cope with high temperatures. Even before the official heatwave begins, temperatures in London remain high, with the lowest recorded today at 25°C.
Residents are advised to prepare for the hot weather, stay hydrated, and take precautions against heat-related illnesses. The consistent sunny spells and gentle breezes will make for pleasant but potentially dangerous conditions if proper care is not taken.
