London: The United Kingdom has endured its warmest summer since records began in 1884, with human-induced climate change making similar extreme heat events more likely, according to the Met Office.
The country experienced four separate heatwaves this summer, with the highest temperature reaching 35.8°C (96.4°F) in Faversham, southeast England, though still below the UK’s all-time high of 40.3°C (104.5°F) recorded in 2022.
Across June, July, and August, the mean average temperature reached 16.1°C (60.9°F), surpassing the 2018 record of 15.8°C (60.4°F) and standing 1.5°C above the long-term meteorological average.
🌡️ The UK has had its warmest summer on record, according to provisional Met Office statistics.
The UK’s mean temp of 16.10°C surpasses the previous record of 15.76°C and pushes the summer of 1976 out of the top 5 warmest summers.
Details below or read this short thread👇🧵
— Met Office (@metoffice) September 1, 2025
Mark McCarthy, head of climate attribution at the Met Office, emphasized that the extreme summer was made far more likely by greenhouse gas emissions since the Industrial Revolution. “What were previously seen as extreme events are becoming more common, much hotter summers could plausibly occur in the current and near future,” McCarthy added.
The Met Office announcement came as Conservative Party leader Kemi Badenoch pledged to extract every last drop of oil and gas from the North Sea if her party is re-elected, a move warned against by climate activists and health experts due to its potential to worsen climate change.
The summer heat has put significant strain on UK infrastructure and health systems. In June, soaring temperatures in London’s underground network prompted Transport for London to advise passengers to carry water and “look out for each other while travelling.”
Meanwhile, an alliance of 53 UK health organisations, representing approximately one million health professionals, warned that heatwaves are linked to sharp increases in deaths, disrupt sleep, increase stress, and can aggravate mental health conditions such as depression and anxiety.
The 2025 heatwave follows a global pattern of record-breaking temperatures. Japan and South Korea have recently experienced their hottest summers on record. Across Europe, sweltering heatwaves this summer contributed to deadly wildfires in Greece, Spain, and Portugal. At the same time, Pakistan’s eastern Punjab province is facing its largest flood on record, affecting two million people.
In a related development, the International Court of Justice (ICJ) ruled in July that countries must meet their climate obligations. Failure to act, the court stated, could violate international law, potentially allowing nations affected by climate impacts to seek reparations in future legal cases.
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