Exact dates of 11-day heatwave with temperatures to rocket to scorching 34C

UK weather: Met Office forecasts 'humid and unstable' conditions

A Spanish plume is set to hit Britain in mere days, sending thermometers raging to 34C and the country into its first extremely hot period of the year. That’s according to a meteorologist who predicts peaks of nearly 35C will mark the nearest point to last July’s unprecedented and record-breaking 40C heatwave. 

Jim Dale, a senior meteorologist at British Weather Services, told Express.co.uk: “There’s a big move on the weather models, indicating the middle to end of next week to be hitting 35C here and potentially 45C in Spain, following the hottest start to June globally ever.

“This is all written very large on the can of climate change.”

Netweather’s GFS models indicate the surge will begin from this Saturday, June 24 with highs of 29C engulfing London and surrounding boroughs. 

Much of the south east will follow suit with top temperatures of 25C being achieved. Nothern England and parts of Scotland will see highs of 21C.

This sweltering theme will continue all weekend for the nation before ramping up on Monday, June 26 where 30C could be reached in central England, including the Midlands. 

On Tuesday the mercury slowly begins to push upwards again as blistering heat moves to 31C and above, and by Wednesday parts of the south east may be basking in 33C highs. 

This is where thermometers begin to plateau, at least for the first weekend of July, before a near-10C drop during the first week of the new month. 

But this is not as dramatic as it sounds, with top temperatures of 26C still taking hold, maps indicate. 

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The first real surge of summer comes as the Met Office notes the emergence of El Niño, which sees the continued warming of the eastern tropical Pacific. This, it says, will likely see surface temperatures “challenge more records this year,” it says. 

From June 23 to July 2, the Met Office long-range forecast reads: “The start of this period is likely to see a northwest-southeast split established, with more unsettled conditions towards the northwest bringing some rainfall here, while the southeast is more likely to remain drier overall.

“Winds are likely to be stronger at times towards the northwest and lighter towards the southeast. Temperatures will be warm or very warm for many, perhaps hot in the southeast.

“Further into this period, the northwest is likely to continue to see the most unsettled conditions, with rain at times, while the southeast is most likely to see the driest conditions, although the chance of heavy showers or thunderstorms cannot be ruled out here. Temperatures are most likely to remain above, or even well above average.”

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What about next month? 

Looking ahead to July 3 to 17, the Met Office is unable to offer any specifics, but has endeavoured to pinpoint the hottest and sunniest parts of the UK.

It adds: “There are no particularly strong signals for anything other than a mix of typical summer conditions over the UK in this period, although temperatures are likely to remain above, or well-above average.

“This means that overall, the driest, warmest and sunniest conditions will often be in southern parts, whereas further north, it is more likely to be cloudy with occasional rain and stronger winds at times.

“Any rainfall across southern areas will more likely arise as a result of showers and thunderstorms.”

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