UK heatwave: What is the maximum working temperature?

EnvironmentHealth & Fitness
17 Jun 2026 • 11:27 PM MYT
The Independent
The Independent

The world’s most free-thinking newspaper

UK heatwave: What is the maximum working temperature?

  • Parts of England are expected to experience a fresh heatwave this weekend, with temperatures set to reach 32C.
  • The UK Health Security Agency (UKHSA) has issued yellow heat health alerts for the South East, the East of England, London and the East Midlands, remaining in place until Monday.
  • While there is no legal maximum working temperature in the UK, employers are legally required to ensure “reasonable” temperatures for staff, according to the Advisory, Conciliation and Arbitration Service (Acas).
  • The service notes that employers should conduct “health and safety risk assessments” for extreme temperatures and reduce any identified risks.
  • The advisory Climate Change Committee (CCC) has previously recommended mandatory maximum temperature regulations for workers to safeguard against heatwaves.

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