A petition calling for a legally binding maximum working temperature of 25°C has gained thousands of signatures as the UK endures its third major heatwave of the year. Created by Andrew Haddock on the official UK Parliament website, the petition had collected 5,914 signatures by Thursday, July 9, 2026, and will remain open until December 19, 2026.
Petition Thresholds for Government Action
Under UK petition rules, if the petition reaches 10,000 signatures, the government will issue a formal response. Should it attain 100,000 signatures, it will be considered for debate in Parliament. The petition argues that current statutory guidance only covers minimum temperatures, leaving workers "vulnerable to extreme heat" in both indoor and outdoor jobs.
Current UK Law on Workplace Temperatures
Currently, UK law requires employers to maintain "reasonable" indoor temperatures but sets no legal maximum limit. The Health and Safety Executive (HSE) suggests practical measures such as providing fresh air, free drinking water, and flexible shifts when heat causes discomfort. However, the petition contends that "reasonable comfort" under the Health and Safety at Work Act is insufficiently clear and that enforceable limits are needed to protect all workers.
Third Heatwave of 2026
The petition's launch coincides with the UK's third heatwave this year, following a record-breaking "heat dome" in June. The Met Office is tracking a prolonged period of hot, settled weather driving temperatures into the mid-30s Celsius across many areas. Amber and yellow heat health alerts have been issued by the UK Health Security Agency, with forecasts predicting highs of 35°C or 36°C.
Deputy Chief Forecaster Tom Crabtree commented: "Many people will understandably want to know how long the current heatwave is likely to last. While temperatures are expected to ease across southeast England through the weekend and into next week, it won't be a straightforward end to the warm weather."
Impact on Workers and Employers
The petition highlights the vulnerability of workers during extreme heat, particularly those in physically demanding jobs or without access to air conditioning. Proponents argue that a clear legal maximum would compel employers to implement measures such as adjusted working hours, rest breaks, and cooling facilities. Opponents may raise concerns about the feasibility of enforcing a universal limit across diverse work environments.
As the heatwave continues, the petition is expected to gain further momentum, with supporters urging the government to take action to protect workers from heat-related health risks.
