The latest HSE guidance on working in hot weather

 

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Health and Safety Executive

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Issued: 18 June 2025

For daily updates on health and safety issues visit HSE's website.

Working in hot temperatures

With temperatures increasing across much of the country, employers must ensure workers are protected during hot weather.

There's no law for maximum working temperature, or when it's too hot to work, because every workplace is different.

HSE's website has a practical step guide on temperature in the workplace.

This includes guidance on:

  • what the law says
  • managing workplace temperature
  • preventing heat stress
  • protecting those working outdoors

We also provide a workplace temperature checklist to help you carry out a basic risk assessment. 

View the full range of guidance by visiting HSE's temperature webpages.

Safety alerts and notices

HSE's safety alerts and notices keep employers and workers up to date with failures in equipment, process, procedures and substances used in the workplace.

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