Map shows how hot it has to get before it is officially a heatwave in the UK

Soaking up the sun in Green Park, London. (Picture: Amer Ghazzal/Shutterstock)

It’s time to dig out the sun umbrellas and stay hydrated as UK temperatures look set to soar for the rest of the week.

A plume of warm air is being dragged in from Europe, meaning parts of the country could be hotter than Istanbul this weekend.

Forecasters predict it will be London and the south of England that will be baking in the hottest of this week’s rising temperatures.

Is there officially going to be a heatwave this week?