Warm continental air is set to blow across the UK next week, banishing winter and making parts of Britain feel like the Mediterranean.
Although the south is expected to experience the warmest weather, sunny skies are forecast across the whole of England and Wales, pushing temperatures 10 degrees above the norm for mid-April.
The Met Office said the weather would grow warmer throughout the week, but warned fronts from the Atlantic, battling to move in from the west, would mean some areas of western Scotland and Northern Ireland could see showers.
Met Office meteorologist Sarah Kent said it will rain in most places on Sunday, but continental weather will takeover on Monday, with temperatures in the south-east reaching 15C or 16C.
“By Tuesday across London we could see 18C, maybe 19C,” she continued. “By Wednesday, there’s still going to be some patchy rain in parts of the north-west but England and Wales will have this continental air coming in.
“So, dry weather for them, plenty of sunshine again.
“Temperatures on Wednesday will again be highest in the south-east. London could see between 20C and 23C. And in fact, going further north, places like York could see 18C to 20c. And, even for Glasgow, it could be 17C or 18C on Wednesday.”
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Ms Kent said: “The trend into the end of the week is to continue this feed of warmer continental air across England and Wales. Those frontal systems are always trying to battle into the north-west, so it could be cloudier there with some more mixed weather at times.
“But, by the end of the week, in that far south-eastern corner we could see temperatures into the low to mid-20s,” she said, adding the predicted temperatures were above the average for mid-April.
London normally expects to see temperatures of 13C to 14C at this time of year with an average of 12-13C normal for southern England, she added.
The Met Office said Saturday is likely to be the best day of the coming weekend, with temperatures reaching the mid to high teens in some places.
European forecasters are predicting temperatures in the low 20s for Malaga, Rome and Athens next week.
Press Association contributed to this report