Western Europe has experienced its hottest June on record, with a severe heatwave affecting the region. The heatwave has driven harsher conditions, with two thirds of the EU facing harmful ozone levels and a significant number of heat-related deaths reported in some areas. The extent of the heatwave's impact varies, with some reports indicating it is the worst ever recorded in Europe, while others note that some countries, such as Spain, experienced their second-hottest June.