Upcoming London Heatwave: What to Expect and How Long It Will Last

As London prepares for yet another heatwave, it is advisable to secure a fan or air conditioning unit if you haven’t already. Following a month of elevated temperatures in both May and June, the forecast for July indicates that residents can expect similar conditions. The latest predictions suggest that the capital will endure six consecutive days of high temperatures.

Upcoming Heatwave Details

To be classified as a heatwave, temperatures must reach a local threshold of 28 degrees Celsius for three or more days. This threshold is anticipated to be met from Wednesday, July 29, continuing through to Monday, August 3. The forecast indicates that Wednesday will kick off the heatwave with a temperature of 28 degrees, which will be the lowest recorded in the following days, which promise prolonged periods of sunshine.

Fortunately, forecasters do not expect temperatures to soar into the high 30s, which has been the case during previous heatwaves that prompted extreme weather warnings across the capital. The Met Office has noted that as August approaches, there are indications that high pressure may return, potentially leading to dry conditions, especially in southern regions. Temperatures are expected to remain at or above the seasonal norm, with a likelihood of very warm conditions prevailing by early August.

Detailed Weather Outlook

Here is a breakdown of the expected weather throughout the upcoming heatwave:

• Wednesday, July 29: 28°C, sunny intervals with a gentle breeze.
• Thursday, July 30: 29°C, sunny and a gentle breeze.
• Friday, July 31: 28°C, sunny with light rain showers and a gentle breeze.
• Saturday, August 1: 28°C, sunny and a gentle breeze.
• Sunday, August 2: 28°C, drizzle with a gentle breeze.
• Monday, August 3: 29°C, light cloud and a gentle breeze.

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