The UK, which is accustomed to gentler weather, had temperatures exceeding 40C (104F) for the first time.
Portugal increased its death toll following days of extreme weather while Germany experienced its hottest day of the year thus far.
Across the continent, deadly flames have spread. The World Meteorological Organization (WMO) of the UN forewarned that things will get worse.
Due to climate change brought on by human activity, heatwaves are now more frequent, more powerful, and stay longer.
In addition to the UK experiencing record temperatures, a number of fire agencies declared significant incidents as a result of an increase in fires.
Homes in Wennington, east London, caught fire due to a significant fire. Eight homes and maybe a nearby church were burned in the fire, according to evacuees who spoke to the BBC; a firefighter on the site called it “total carnage.”
On Monday, temperatures reached record highs in 64 different regions of France.
Although mainland France has not yet reached its record high, the south-west of the nation has seen its worst wildfire season in more than 30 years. More than 20,300 hectares (49,400 acres) of the wine-growing Gironde area have been destroyed by fires since July 12.
Around 37,000 people had to be evacuated as a result of the wave,however, cooler weather has now returned to UK and France.