UK set for ‘official’ heatwave early in September - here’s the forecast for Liverpool

Parts of the UK could see an “official” heatwave in the coming days, with temperatures hitting almost 30C, but what about here in Merseyside?
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This summer may not have been up to the usual standards of previous seasons - weather wise - but according to forecasts, things are starting to look up this week.

Just as the kids have gone back to school. Typical.

Parts of the UK could see an “official” heatwave in the coming days, with temperatures hitting almost 30C, forecasters have said.

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The Met Office said people in some areas will bask in sweltering heat and sunshine from Monday to Wednesday.

The mercury is expected to exceed the average for September, which is 18C in the UK.

Here is everything you need to know about it.

What is an ‘official’ heatwave?

A location meets the UK heatwave threshold when it records a period of at least three consecutive days with daily maximum temperature levels, which vary across the country.

These include 25C for the North West of England and Wales – where it has been forecast the threshold could be exceeded – and 28C for London and the South East.

What have the Met Office said?

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Annie Shuttleworth, a Met Office forecaster said: “We are expecting temperatures to rise at the beginning of the new week.

“Sunday will be a cloudy and wetter day for much of Scotland and Northern Ireland while those further south will see bright and sunny conditions with temperatures in the mid-twenties.

Despite a cloudy start to Monday, conditions will be clear and bright with hot temperatures for large parts of England and eastern Wales as the result of continental air moving in from the south.

This air will start to push through the country on Tuesday and Wednesday, dragging temperatures as high as 29C for parts of the south-east while Scotland and Northern Ireland will also move into the mid-twenties.

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It’s going to be very warm for the time of year and could even be rather uncomfortable for people trying to sleep at night, with temperatures remaining at around 18C during the evening.

An aerial view of Liverpool in the sun. Image: ShutterstockAn aerial view of Liverpool in the sun. Image: Shutterstock
An aerial view of Liverpool in the sun. Image: Shutterstock

How likely is an ‘official’ heatwave?

Shuttleworth said this meant a “decent chance” of an official heatwave for parts of central England and eastern Wales, where the temperature threshold needed over three days is 25C.

However, she warned of an area of low pressure moving in from the west on Wednesday afternoon, bringing with it grey and wet conditions for much of the UK on Thursday.

Thunderstorms are also expected in the second half of the week to conclude the hot spell.

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It comes as bookmaker Coral cut odds on a record hot September in the UK from 2/1 to 4/5.

A spokesman said: “Summer may not be over just yet and with a mini heatwave on its way, the chances of this month ending as a record hot September have increased significantly.”

Five-day forecast for Liverpool

Liverpool’s burst of hot weather will begin on Tuesday when temperatures are set to hit 27C with clear skies from dawn until dusk.

Wednesday is set to be another hot one at 25C but it will cloud over in the afternoon, with a 30% chance of rain around 19.00 in the evening.

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By Thursday lunchtime heavy showers will have rolled into Merseyside with thunderstorms a possibility by late afternoon. It will still be warm at 21C, but that drops below the three-day 25C threshold set by the MetOffice so we won’t be having an official heatwave.

Temperatures continue to drop on Friday when it will be cloudy with light showers at lunchtime. Saturday will also be around 19C with sunny intervals, but clouding over in the evening.

A version of this article originally appeared on our sister title, NationalWorld