Horrified UK tourists in Spain and Greece warned to stay indoors 'in middle of day'

Worrying weather maps in Spain and Greece show the two holiday hotspots roasting dark red as the European Union is hit by a "horror" heatwave. People heading abroad to Spain and Greece from the UK for a summer holiday have been warned over the rise in temperatures.

WX Charts maps and charts, which are used using Met Desk data and are projected daily, see Spain possibly seeing the mercury rise to as high as 42C degrees in several areas on Thursday, with the hottest temperatures in the south. The area around Seville could be in for 41C, as could an area between the Andalucian cities of Cordoba and Jaen.

Badajoz on the country's border with Portgual is among a number of others set for temperatures exceeding 40C. In Greece, maps and charts show the mercury in the European Union holiday hotspot rise to a sweltering 42C in the next couple of days.

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William Spencer, climate and first aid product manager at the British Red Cross, said: "Heatwaves are becoming more frequent and getting worse because of climate change. Sadly, we have seen cases already this year of the tragic impact high temperatures can have on human life.

"High temperatures make it harder for the body to cool itself and we all need to take care to manage the health risks of heat. If you are travelling to a country experiencing extreme heat, there are several steps you can take to keep yourself and others safe.

"We would advise people to plan ahead for the effects of heat on their trip, making sure they know how to recognise the symptoms of heat exhaustion and heat stroke. They should also avoid activities in the middle of the day when temperatures are highest.

"Other safety tips include wearing sunscreen, drinking plenty of water and drinking less alcohol. You can also help keep wherever you’re staying cool by keeping blinds and windows closed during the hottest parts of the day."