NHS reports busiest ever summer as heatwaves drive up hospital admissions

The NHS experienced its most intense strain ever during the summer of 2024 as five record‑breaking heatwaves drove unprecedented demand across emergency and urgent‑care services in England. In June, July and August, A&E departments recorded a total of 7,268,445 attendances – 240,000 more than the same period in 2025 and nearly one million higher than in 2022 – making it the highest summer figure on record. Ambulance callouts also hit a new peak of 2.46 million, up from 2.32 million the previous year, while the NHS 111 telephone advice line answered just over three million calls, exceeding the prior year by more than 100,000. Health Secretary Yvette Cooper highlighted that extreme demand is no longer confined to winter, and announced a £1.5 billion funding package to expand hospital capacity, including new operating theatres, children’s wards and maternity units, with £32 million earmarked for “heat‑proofing” the NHS. National Medical Director Prof Frankie Swords praised staff for rising to the challenge despite the unprecedented pressure.

The surge in demand is being linked directly to the health impacts of extreme heat, which climate experts say is creating a “twin crisis” for the NHS. Sarah Woolnough, chief executive of the King’s Fund, warned that climate change is making heat a permanent pressure point, leaving little time for staff and the system to recover between peak periods. Respiratory conditions have been a major driver, according to Andrew McCracken of Asthma + Lung UK, who noted that breathing problems are already the leading cause of emergency admissions and that higher temperatures, combined with wildfire smoke, trapped pollution and a longer pollen season, exacerbate asthma and chronic obstructive pulmonary disease. The Department of Health and Social Care has responded by establishing a heat taskforce to devise strategies for coping with extreme temperatures, underscoring the growing recognition that climate‑related health risks are reshaping service demand.

The record summer demand has compounded existing pressures on the NHS, with the waiting list for hospital treatment rising to 7.3 million in July – the highest level since October of the previous year. This increase casts doubt on the government’s target of treating 92 percent of patients on the waiting list within 18 weeks by 2029. Hospitals across the country reported difficulty maintaining normal care standards throughout the heatwaves, and the new funding aims to bolster capacity and resilience. The situation highlights how climate‑driven health emergencies are intersecting with longstanding systemic challenges, prompting policymakers to consider both immediate infrastructure upgrades and longer‑term adaptations to protect the NHS from future extreme‑weather events.

⚡ Effects Interpreter