Amid record heat, Barcelona logged its highest temperature in 112 years, reaching 40.7C on Tuesday.
The extreme heat forced brief shutdowns at French energy reactors.
Spain’s most extensive wildfire near Madrid continued to burn, covering nearly 20,000 hectares.
In France, wildfires also raged out of control.
Hail battered the Balkans, striking homes.
Meanwhile, Scotland and Canada faced separate wildfires under Europe’s volatile weather patterns, sparking concerns.
Authorities warned of deteriorating conditions as high temperatures persisted across the continent, intensifying worries.