Upcoming Heatwave: Key Dates Revealed in Latest London Weather Forecast

Following a spell of cooler conditions, it appears that a new heatwave is on the horizon. Recent weeks have seen a steady rise in temperatures, consistently exceeding 29°C, and this trend is expected to persist into next week, as outlined by the 14-day weather forecast. Starting from Wednesday, 29th July, temperatures are predicted to reach a minimum of 28°C, which will be the lowest for the subsequent five days.

Defining a Heatwave

To qualify as a heatwave, a region must experience temperatures that surpass a specific local threshold for three consecutive days. These thresholds vary across the UK; for instance, Scotland and Wales consider 25°C as the benchmark, while London’s threshold stands at 28°C. Throughout the upcoming week, temperatures are expected to remain at or above this mark, with London once again facing sweltering conditions accompanied by ample sunshine.

During the previous heatwave at the start of the month, London faced multiple weather warnings due to the extreme heat. Public transport services were severely strained, with numerous cancellations across the network as operators struggled to adapt to the soaring temperatures. Even prior to the official start of this anticipated heatwave, Londoners can expect high temperatures, with today’s minimum projected to be around 25°C.

Forecast for the Upcoming Days

The heatwave is set to officially commence on Wednesday, 28th July, when temperatures are expected to hit 28°C. The forecast for the following days is as follows:

• Wednesday, 29th July: 28°C, featuring sunny intervals and a gentle breeze
• Thursday, 30th July: 28°C, with sunny skies and a gentle breeze
• Friday, 31st July: predominantly sunny with a gentle breeze
• Saturday, 1st August: 29°C, sunny and breezy
• Sunday, 2nd August: reaching 30°C, sunny and pleasantly breezy

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