Paris, June 25: A powerful and rare heat dome has engulfed much of Europe, pushing temperatures to record-breaking levels, disrupting daily life, and causing dozens of deaths across the continent. Authorities in several countries have issued emergency alerts as the extreme heat continues to strain public health systems, energy infrastructure, agriculture, and transportation networks.
France, Britain, Spain, Italy, Belgium, the Netherlands, and Switzerland have all been affected by the intense heatwave, with temperatures in some regions soaring up to 18°C above normal seasonal averages. Parts of southwestern France recorded temperatures as high as 44.3°C, marking the country’s hottest day since modern weather records began nearly 80 years ago.
French authorities placed more than 50 departments under the highest weather alert level as hospitals, emergency services, and utility providers faced mounting pressure. The extreme conditions have already turned deadly. France reported at least 48 drowning deaths in recent days as people sought relief from the heat in rivers, canals, and lakes. Two young children also died after being left inside a parked vehicle during the scorching weather. In Spain, at least two elderly people reportedly died from heatstroke as temperatures exceeded 40°C.
Meteorologists attribute the crisis to an atmospheric phenomenon known as an “Omega block” or heat dome. The system traps hot air beneath a high pressure zone, preventing cooler air from entering and allowing temperatures to rise continuously over several days. Experts have compared the event to the devastating 2003 European heatwave, which was linked to an estimated 80,000 excess deaths across the continent.
Climate scientists warn that such extreme weather events are becoming increasingly common as global temperatures rise. Europe is currently warming at more than twice the global average rate, making prolonged and intense heatwaves more likely.
The heat has significantly disrupted everyday life. In the United Kingdom, authorities issued only the second extreme heat warning in the country’s history. Schools closed in some areas, train operators imposed speed restrictions to prevent rail tracks from buckling, and several Eurostar services between London and Paris were cancelled.
Major tourist attractions have also been affected. The Eiffel Tower shortened visiting hours, while museums and public venues across France adjusted operations to protect visitors and staff. In the Netherlands and Belgium, outdoor sporting events were cancelled and schools reduced class hours. Some institutions even relocated examinations to cooler buildings.
The economic impact is also becoming evident. Hundreds of thousands of poultry birds reportedly died on farms in western France as temperatures overwhelmed livestock facilities. Farmers have shifted harvesting activities to nighttime hours to protect workers and reduce wildfire risks. Construction companies across several countries have altered work schedules, with outdoor labour restricted during the hottest parts of the day.
Retailers have experienced surging demand for cooling products. Sales of fans, portable air conditioners, sunscreen, and frozen foods have increased sharply, with some stores reporting shortages. Rising electricity demand for cooling has also pushed wholesale power prices in France and Germany to their highest levels since January.
The heatwave has additionally affected Europe’s energy sector. France, which relies heavily on nuclear power, was forced to reduce output at several reactors because river water used for cooling became too warm. Environmental regulations limit the temperature of water discharged back into rivers, forcing some facilities to cut production or temporarily suspend operations.
The impact has extended to cultural and sporting events as well. Paris Fashion Week organisers adjusted schedules to avoid peak afternoon heat, while visitors attending events in Milan and Rome relied on cooling stations, fans, and shade to cope with the temperatures. At the Vatican, tourists queued under intense sunshine while seeking refuge near fountains and shaded areas.
Weather agencies expect some relief in parts of western Europe in the coming days. However, forecasters warn that dangerously high temperatures are likely to persist across southern and central Europe, keeping millions at risk from heat related illnesses and further disruptions.
The ongoing heatwave has once again highlighted the growing challenges posed by climate change, as Europe faces increasingly frequent, longer lasting, and more intense periods of extreme heat.