A punishing new wave of extreme heat has swept across Western and Southern Europe this Thursday, pushing temperatures into dangerous territory for hundreds of millions of residents and compounding ongoing risks of wildfires, heat-related illness, and systemic strain. The major affected regions span France, Italy, Spain and the United Kingdom, where official weather data has already confirmed record-matching heat that has drawn urgent warnings from frontline healthcare workers and climate scientists alike.
According to an analysis from Agence France-Presse (AFP), built on forecasting data from Germany’s national meteorological service Deutscher Wetterdienst (DWD) and 2025 population projections from the European Commission’s Joint Research Centre, nearly 340 million people across Europe (excluding Turkey) are expected to see temperatures climb above 30°C. Of that group, more than 135 million will face sweltering conditions exceeding 35°C, with peak temperatures in some areas pushing past 42°C. These findings align with data from Austrian non-profit climate monitoring group Klimadashboard, which maintains a public tracking tool for heat events across the continent. Experts from both organizations note that the official counts likely underestimate the true scale of impact, as the forecasting model’s 6.5-kilometer resolution does not capture the full intensity of urban heat island effects that make dense cities significantly hotter than surrounding rural areas.
In the United Kingdom, the Met Office confirmed temperatures reached 38.1°C at London’s Kew Gardens, marking the fifth-hottest day recorded in the nation’s history. With 40 separate locations across central and southern England hitting 36°C or higher, the country is on track to log its hottest summer ever recorded, according to Met Office projections released earlier this week. Bailey Williamson, a 20-year-old pharmacist working for the UK’s National Health Service (NHS), described unbearable conditions that are putting vulnerable hospital patients at acute risk. “People in beds are really, really sick, and they can’t even breathe because of the heat problem — so it’s really bad,” he told reporters. Williamson added that hospitals have already seen a sharp spike in heat stroke cases, and the overstretched NHS is struggling to meet the increased demand for care. Echoing the concern of many climate scientists, he called the recurring heatwaves a clear warning sign of how severe human-caused climate change has become. Visiting tourist Tim Wallace, who traveled to the UK from Australia, called the unprecedented heat worrying, noting that recurring hot summers would permanently alter local landscapes as climate change continues to drive global temperature rises.
Across the English Channel, France recorded even more extreme highs on Thursday. National weather service Meteo-France logged a peak temperature of 42.5°C in the central French town of Chateaumeillant, the highest reading in the country that day. The capital Paris hit 38°C, and most of the nation remains under active heatwave alerts. In Italy, forecasters project similar dangerous conditions will impact 29 million people, with the worst heat concentrated along the west coast, in the Po Valley, across southern Italy, and on the country’s major islands. Neighboring Spain on the Iberian Peninsula is also facing widespread sweltering conditions, with roughly 25 million residents affected. Spanish national weather agency Aemet recorded temperatures hitting 37°C across central regions of the country on Thursday.
Beyond heat-related illness and systemic strain, the record-breaking heat has exacerbated wildfire risk across the continent, which is already facing a summer of historically severe blazes fueled by overlapping heatwaves and persistent drought. In northern Greece, hundreds of tourists were evacuated by boat this week after an out-of-control forest fire advanced on two popular coastal resorts. In the UK’s West Midlands region, firefighting crews worked around the clock to contain blazes that damaged residential properties amid ongoing dry, drought conditions.
Climate scientists have long warned that Europe is the fastest-warming continent on Earth, and many regions remain critically underprepared to handle the increasing frequency and intensity of extreme heat events. Multiple studies have linked the growing severity of heatwaves to anthropogenic climate change, driven by greenhouse gas emissions from fossil fuel use and deforestation. This summer’s recurring heat and drought have already contributed to thousands of heat-related deaths across the continent, alongside hundreds of thousands of hectares of land burned by wildfires.