Britain is experiencing an intense heatwave this week, with temperatures approaching record highs and prompting widespread school closures, travel disruptions, and public health warnings. The Met Office has issued a rare red extreme heat warning covering parts of southern England, the Midlands, and southern Wales, with temperatures expected to reach up to 40C in some areas. This would surpass the previous June record of 35.6C set in 1957 and 1976, edging close to the UK’s overall record of 40.3C set in July 2022.
On June 23, the hottest temperature recorded was 34.6C in Wisley, Surrey. Forecasts indicate temperatures could climb to 36C today and 39C tomorrow, with a 30 percent chance of reaching the 40C mark, particularly in London and the southeast. Overnight tropical temperatures—above 20C at multiple locations—have contributed to difficult conditions, including disrupted sleep for many residents.
The heatwave’s impact has been felt widely across the country’s education system. Over 740 schools have announced at least partial closures this week, with large numbers either sending pupils home early or cancelling end-of-year events such as sports days and trips. Many schools have relaxed uniform rules, allowing pupils to wear lighter clothing such as PE kits. Some headteachers have implemented creative cooling measures, including the use of paddling pools to help younger children cope with the heat.
The Department for Education stated it does not typically recommend school closures during hot weather, emphasizing that attendance remains the best way for pupils to learn. However, it has advised school leaders to take necessary steps to ensure safety and comfort. Teachers’ unions have called for legally enforceable limits on classroom temperatures, while some education figures argue that coping with some discomfort is part of the learning experience.
Transport networks have also been significantly affected. Rail operators have cancelled or reduced services, particularly on lines vulnerable to heat-related damage such as buckled tracks or sagging overhead wires. Greater Thameslink Railway, Avanti West Coast, and Chiltern Railways have advised passengers to avoid travel unless absolutely necessary. Train disruptions have been compounded by recent heavy storms that caused flooding on London's Elizabeth Line.
Public health authorities have issued a second-ever heat-health red alert, signaling increased risk of harm even to healthy individuals. The UK Health Security Agency’s warning covers six regions, including the West Midlands, East Midlands, and London, remaining active through this evening. Officials have stressed the risk to vulnerable groups and urged people to take precautions such as staying hydrated and avoiding strenuous activities.
Experts note that this heatwave marks another milestone in a warming climate. Scientists highlight that the average UK summer temperature has increased by approximately 1.4C since the heatwave of 1976, and that extreme weather events of similar or greater severity are likely to become more frequent as global temperatures rise. The current episode, arriving on the 50th anniversary of the notable 1976 heatwave, underscores concerns about adapting to a changing climate and its impact on public health, agriculture, and infrastructure.