Brits are set for the hottest day of the year on Friday where temperatures will be warmer than Ibiza.
After a warm weekend where the warmest day so far was recorded in Porthmadog, North Wales, with 23C, there is expected to be plenty of more sunshine to come.
And by the end of the week the mercury could reach 25C that would make the UK hotter than the Spanish island of Ibiza or Malaga on the Costa del Sol.
A high pressure moving in from the Atlantic is also likely to mean there will be settled weather for the remainder of May ahead of the predicted African plume heatwave in June.
The Met Office has said that today and Thursday could see the mercury rise to 24C before Friday which is likely to be a fraction hotter at 25C.
Eastern areas of Wales and the West Midlands are set to be the warmest while an onshore breeze will keep temperatures in the southeast cooler, but dry, bright weather is still expected across the area and most of the country.
Met office forecaster Aidan McGivern said: “High pressure is here and it is here to stay for some time. That means a lot of settled weather, plenty of warm sunshine as well across the UK but not for everyone all the time.
“The position of the high pressure to the west of the UK means that some weak weather fronts will occasionally affect the far north and we’ll continue to see a bit of a cool breeze coming in from the North Sea at times.”
It will be cool overnight going into Tuesday, getting as low as 2C in some “sheltered spots” but it will soon warm up with the strength of the sun.
Mr McGivern continued: "There will still be some cloud in parts of northern and southern England and it is not likely to be as warm as Monday with high teens for many areas and a high of 20C or 21C. Also in Scotland it will be cloudy in many areas with some light rain keeping it cooler.
"For most it remains settled and it continues to be that way into Tuesday night, into Wednesday, Thursday, Friday, in fact probably for the rest of May there’s a strong signal of high pressure to be close to the UK to keep things on the quiet side although not always on the sunny side. Spring has finally sprung. Plenty of warm sunshine out there."
But the scorching 35C temperatures with the African plume are not expected this month.
For warm weather to be classed as a heatwave, it has to persist for at least three days and be much hotter than expected for the time of year.
A Met Office spokesperson said that while temperatures are heating up, they are not outside of what is expected for early summer.