Liverpool will be hotter than Ibiza on Tuesday with temperatures of 36C forecast.
Across the country, temperatures will soar as a heatwave grips early next week. The Met Office has extended its amber warning for extreme heat for much of England and Wales, so it is now in place from Sunday until the end of Tuesday, with the hot spell expected to peak on Monday or Tuesday.
It warns that it could cause health problems across the population, not just among people vulnerable to extreme heat, leading to potential serious illness or danger to life. Widespread disruption, including road closures and cancellations and delays to rail and air travel are also possible, as temperatures look set to soar into the mid-30s or above.
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The public is being warned of the dangers of swimming in unsupervised areas of open water to cool off, and told not to leave pets or children in parked cars even for short periods.
And there are concerns about the risks of wildfire, with visitors to the countryside and green spaces warned not to use barbecues; make sure cigarettes are properly put out and disposed of; and not leave litter such as glass bottles which could cause a fire to start in the tinder-dry conditions.
The heatwave is a result of high pressure and hot air flowing to the UK from the Continent. Heatwaves have been made hotter, longer and more frequent by climate change, and experts have warned of the need to adapt homes, cities and infrastructure in the UK for a future of more intense - and deadly - summer heat.
Temperatures could peak in excess of 36C in Liverpool, according to BBC Weather. This would be hotter than Ibiza (32C) and marginally less than Dubai (39C).
However, the warm weather will soon be replaced by thundery showers on Wednesday, July 20 and temperatures will drop to 23C.
Met Office meteorologist Annie Shuttleworth said: "We're looking at a prolonged spell of hot weather and very hot nights. It's likely we will see some areas, particularly more urban areas in the south staying above 20C, so we could see some tropical nights.
"Where we've got the extreme heat warning, as well as the hot daytime temperatures it will likely be warm at night, which brings trouble sleeping. It doesn't look like it will just be one night, it's the cumulative effect of some uncomfortable nights in a row, which no-one will enjoy."
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