Temperatures across the UK will rise to 30Cs this week amid warnings of an impending ‘big heat wave’.
Sparkling golden rays will make the mercury boil until mid-July, powered by a large area of high-pressure construction across the UK.
It will be driven by an oceanographic event taking place 7,000 miles away in the eastern Pacific.
Falling sea temperatures along the South American coast are driving a La Nina ocean cooling event, a phenomenon known to have an effect on global weather patterns.
John Hammond, Meteorologist for Weather Trending, said: “The key to this warmer and drier trend across the UK lies in the distant tropics, and an interaction between the ongoing ‘La Niña’ with a pulse of atmospheric convective energy that the tropics of crossing the west.
“Through a chain reaction, it will affect printing patterns more around the world and will ultimately help build high pressure from the Azores across the UK.
“The result will be several days of dry and often hot weather.
“Just how hot it gets will depend on whether the high pressure migrates far enough eastwards to introduce air from a ‘beacon’ near continent.”
La Nina is the counterpart of El Nino – a phenomenon that raises sea temperatures in the eastern Pacific and is the ‘hot phase’ of the El Nino Southern Oscillation.
Both La Nina and El Nino are affecting weather around the world again, including warmer British summers and colder winters.
The immediate impact will be to force the Azore High – a semi-permanent high pressure system across the Atlantic Azores – to the UK.
The peak will start reaching the UK at the beginning of next week before thermometers go up before the weekend.
It will then extend into Britain in the run-up to mid-month, allowing temperatures to rise even higher, forecasters say.
Jim Dale, meteorologist for British Weather Services, said: “The Azore High will start pushing towards the UK at the beginning of the week.
“Temperatures will start to rise as we are on our way next weekend, and initially we are looking at highs of 28C or 29C.
“As we go into next week and start towards the middle of the month, we can look at 30C.”
Warm weather will grip almost the whole country with only the north of Scotland, closer to the jet stream, staying cooler.
Mr Dale said: “The hot weather will affect England, Wales and southern Scotland.
“Northern Scotland will be closer to the jet stream, so here it will stay cooler, although it will still be pleasant.
“After the middle of the month, there are signs that this region of high pressure will move away from the UK, which will allow a cooler, more pleasant weather condition to establish.”
Britain could face a major heat wave in the next two weeks with sustained temperatures in the 30Cs.
Exacta Weather forecaster James Madden said: “From the middle of the week, high pressure will start to prevail and temperatures will rise which will bring a time of hot weather that can last for the next seven to ten days.
“Temperatures will initially rise to the 20Cs before rising even higher in the run-up to mid-July.
“There’s a chance we could see highs in the 30Cs over the next few weeks as the country prepares for the next big heat wave to take hold.”