Amid record heat, Barcelona noted its highest temperature in 112 years, reaching 40.7C on Tuesday.
The scorching heat forced brief shutdowns at French nuclear reactors.
Spain’s biggest wildfire near Madrid continued to flame, covering nearly 20,000 hectares.
In France, wildfires also raged out of control.
Hail pounded the Balkans, affecting homes.
Meanwhile, Scotland and Canada faced individual wildfires under Europe’s volatile weather patterns, raising concerns.
Authorities alerted of worsening conditions as high temperatures persisted across the continent, intensifying worries.