When will the UK’s summer weather improve?

The UK is finally set to enjoy some June sunshine with temperatures expected to rise this week.

London, UK.  17 June 2024.  UK Weather – People cross the Millennium Bridge under blue skies and warm temperatures, with St Paul's Cathedral in the distance.  The capital has experienced cooler conditions and heavy rain recently, but the Met Office forecast is for more warmer, settled and drier weather for the next week.  Credit: Stephen Chung / Alamy Live News
People cross the Millennium Bridge in London on Monday under blue skies. (Alamy)

The UK is finally expected to enjoy some warmer weather later this week, forecasters have said.

According to the Met Office, temperatures will rise to as much as 25C by Thursday and Friday as the wet and cool conditions experienced for most of June start to disappear.

Last week, the Met Office said temperatures across the UK for June were between three and four degrees below average.

It has left Britons asking when the cold weather will finally be replaced by some sunshine.

In a press release issued on Monday, the Met Office said: "There's a shift in the UK's weather this week."

It said the change will be caused by a strengthening of the jet stream, generated by temperature contrasts in North America, with a ridge of high pressure moving across the UK.

The westerly wind will bring temperatures back up to their June average and will even get above that later in the week.

The Met Office said temperatures will "likely peak" at around 24°C or 25°C on Thursday and Friday in the south.

People enjoy punt tours along the River Cam in Cambridge. Picture date: Sunday June 17, 2024. (Photo by Joe Giddens/PA Images via Getty Images)
People enjoy punt tours along the River Cam in Cambridge on Sunday. (PA Images)

Met Office deputy chief meteorologist Dan Harris said: “In stark contrast to the first half of June, where temperatures have widely been below average, we are expecting to see a steady uptick through the second half of this week, rising to around or above average, and it will likely feel very warm for those in the sunshine."

However, he warned: “This initial spell of warm conditions isn’t expected to last too long however, as it turns more changeable through Friday and into the weekend with areas of cloud and rain spilling east across the UK.”

Despite the seemingly endless rain, June hasn't been any wetter than average, although the Met Office warned this could change.

Last month, the Met Office dismissed reports there would be up to 50 days of rain this summer, which would be close to the record of 55 days set more than 100 years ago in 1912.

London, UK. 15th June, 2024. Met Police Officers and members of the armed forces secure the route as spectators shelter from a very heavy rain shower. The annual Trooping the Colour ceremonial procession for the King's Birthday makes its way from Buckingham Palace to Horse Guards Parade for proceedings there, and back to the Palace for a balcony appearance. Credit: Imageplotter/Alamy Live News
There was a wet morning for the Trooping of the Colour in London on Saturday. (Alamy)
Donington, United Kingdom. 16th June 2024. Revellers sitting in sinking chairs at a muddy Download Festival.  Credit: Cristina Massei/Alamy live news
Revellers sitting in sinking chairs at a muddy Download Festival in Donington, Leicestershire, on Sunday. (Alamy)

The Met Office has consistently ruled out predictions of a heatwave from independent forecasters this summer and has been proven correct on each occasion. For example, earlier this month some weather services were predicting highs of 28C on Thursday 13 June, when the temperature that day did not get above 16C.

The Met Office says the UK heatwave threshold is met when a location records a period of "at least three consecutive days" with daily maximum temperatures meeting or exceeding the heatwave temperature threshold.

The threshold ranges from 25C in Scotland, Wales and Northern Ireland to 28C in London and parts of the south and south east of England.

The cool June temperatures have been caused by a change in the jet stream, the strong winds blowing from west to east, which have been located further south than usual this summer, bringing cooler winds from the Arctic that has lowered UK temperatures.

Whether things change much through June and into July and the UK finally enjoys a proper summer remains to be seen, but the signs for the next few days are finally positive.