‘Dangerously hostile’: heatwaves leave hospital wards unsafe, data reveals

by | Aug 26, 2026 | Health

‘Dangerously hostile’: heatwaves leave hospital wards unsafe, data reveals

Hospitals across England experienced dangerously elevated temperatures during heatwaves last month, according to data released through freedom of information requests by 33 NHS trusts. The Northern Care Alliance NHS foundation trust, which operates four hospitals in Greater Manchester, documented a peak temperature of 41.8C – significantly exceeding the 28C safety threshold recommended by NHS England. Average ward temperatures across reporting trusts reached 31.9C in July, further surpassing acceptable limits designed to protect both patients and healthcare workers.

The intense heat has created operational disruptions at multiple facilities. Operating theatres have become too warm for safe surgical procedures due to failures in rooftop cooling units exposed to extreme temperatures. Several hospitals have been compelled to reschedule planned surgeries as a result. Beyond surgical cancellations, some patients have elected to postpone their own procedures due to the difficulty of traveling in excessive heat. Additionally, ambulance services have faced challenges maintaining proper temperatures for certain medications stored in vehicle compartments.

Healthcare facilities have implemented various adaptations to manage the crisis. Some hospitals have rented portable air conditioning units, with one trust acquiring at least 600 units. Ambulance services have modified uniform policies to allow crews to wear shorts instead of trousers. Hospitals and GP surgeries have adjusted appointment scheduling for vulnerable elderly patients, offering early morning and late afternoon time slots when temperatures are lower to facilitate easier attendance.

Staff wellbeing concerns have also emerged, with reports that nurses have fainted due to overheating. NHS organizations attribute much of the problem to aging infrastructure that cannot adequately withstand extreme temperature events. The Liberal Democrats, who obtained the data, have called for the establishment of a new “NHS rapid adaptation unit” to implement long-term cooling solutions, including mandatory air conditioning installation in care homes and comprehensive upgrades to NHS buildings’ heat resilience.

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