Exceptionally Early Heatwave Shatters Records, Leaves Deaths Across Western Europe

An exceptionally early spring heatwave has swept across parts of Western Europe , breaking temperature records, triggering health warnings and contributing to multiple heat-related fatalities, authorities said.

In London , temperatures rose to 34.8°C at Kew Gardens , marking the hottest May day on record in the United Kingdom and surpassing previous highs set in 1922 and 1944. The Met Office warned that temperatures in southern England could reach up to 35°C, while several regions also experienced a rare “tropical night” , where temperatures do not fall below 20°C.

The UK Health Security Agency issued an amber health alert , cautioning that the heat posed a significant risk to vulnerable groups, including the elderly, people with medical conditions, and those without adequate cooling facilities.

Authorities reported multiple fatalities linked to the extreme conditions. In France, government spokesperson Maud Bregeon said there had been at least seven deaths potentially associated with high temperatures , including drownings and incidents during outdoor sports. In the UK, a 13-year-old boy died after getting into difficulty in a reservoir in Halifax, while other heat-related incidents were also reported across the country.

Firefighters battled a grass fire near Arthur’s Seat in Edinburgh , with smoke spreading across parts of the city. In London, transport services were disrupted after reports of smoke near railway tracks, adding to commuter strain during the intense heat.

France also recorded unusually high temperatures for May, with several regions exceeding 30°C and setting new monthly records. Officials reported a rise in emergency incidents along Atlantic coastal areas, where strong currents contributed to additional drowning deaths.

Experts noted that the danger of such heatwaves is amplified in regions that are not acclimatised to sudden temperature spikes. Unlike countries where high heat is common, much of Western Europe has limited widespread air conditioning, and many homes and public transport systems are not designed for extreme temperatures. The situation is further worsened by warm nights , which prevent the body from recovering from daytime heat stress.

Authorities have urged people to avoid outdoor activity during peak hours, stay hydrated, and take precautions, especially as scientists warn that unseasonal extreme weather events are becoming more frequent with global warming.

Officials across affected countries continue to monitor conditions as the early-season heatwave shows signs of easing in some regions while remaining severe in others.