London Weather: Met Office predicts 30C Indian summer heatwave will dissolve into thundery end

The welcome but unexpected September heatwave will continue today with London set to swelter in 30C temperatures.

As the mercury shoots up today (September 7), London’s pubs and beer gardens are expected to be heaving with people catching the last rays of summer before Autumn gets underway, with the Met Office already predicting the sudden end of the heatwave.

Describing the day, Met Office meteorologist Alex Deakin said: “There will be a hint or two of autumn for some on Tuesday morning, but for most plenty of strong summer sunshine by the afternoon.”

READ MORE: London weather: Sunshine and soaring temperatures to turn to grey skies later in week

A thunderstorm strikes London
A thunderstorm in London
(Image: Dan Kitwood/Getty Images)

But Alex also warned that the mini-heatwave will live up to its name, with some parts of the country seeing showers as early as tomorrow reports the Daily Star.

Heading into Wednesday, cloud build-up in the southwest could bring hit-and-miss showers to seaside areas there, with parts of South Wales also at risk.

“Again the odd spot of drizzle but for most, it stays dry throughout the night. Another pretty warm night leading into a by and large pretty warm day for many on Wednesday,” said Alex.

London will remain a roasting 28C.

An area of low pressure at fault for the gradual cloud build-up should manoeuvre its way across swathes of the UK on Thursday.

As per usual after a heatwave, thundery showers are likely towards the end of the week, although by Saturday these may well have dried up, allowing for outside fun once more.

Bookmaker Coral have now slashed the odds for this September being the hottest on record in the UK, from 1-2 to 4-5.

Looking at the week ahead in London, a Met Office spokesperson said: “It is becoming increasingly warm through to Wednesday. Cooler, unsettled thereafter.

“[Tuesday will be] another fine and dry day with light winds and large amounts of almost uninterrupted sunshine,” the spokesperson added.

“Feeling very warm or even hot. Becoming breezy along the south coast during the afternoon.”

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And then looking ahead to Wednesday through to Friday the spokesperson said it is forecast to be “dry, sunny and hot” on Wednesday, with rain showers spreading erratically northeastwards overnight to become rather cloudy and less warm on Thursday, with further showers into Friday.

“The conditions for the middle towards the end of September are for that autumnal trend to continue with some unsettled spells of weather and some showery rain although there is a trend towards the end of September for some more settled weather, particularly in the south.

“Temperatures throughout that period are likely to be around average.”

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