Here’s the latest on maximum working temperatures in the UK, based on recent reporting.
Core update
- The Climate Change Committee (CCC) has been advocating a legal maximum workplace temperature to protect workers during heatwaves, suggesting thresholds around 27°C for sedentary tasks and 27–30°C for more strenuous work, with cooling measures required once indoor levels exceed ~24°C. This has sparked regulatory and industry discussions, with unions and safety bodies urging government action. [Sources in coverage include BBC, Independent, Mirror, and union statements referencing the CCC recommendations.]
Key perspectives and developments
- Government and safety authorities routinely provide guidelines for workplace temperatures: a common baseline is a minimum of 16°C (or 13°C for physically demanding work). The CCC’s recommendations are framed as a move beyond these minimums to address heat risks as summers grow hotter. [General coverage across UK outlets notes the contrast between existing guidance and CCC proposals.]
- Trade unions and worker safety groups have been vocal about establishing a maximum temperature (often around 27–30°C depending on task intensity) and obliging employers to implement cooling and ventilation measures when the environment becomes too hot. This sentiment is echoed by Usdaw and other unions in relation to worker health and productivity. [Union statements and reporting in mainstream outlets reflect these positions.]
- Media coverage highlights that this issue intersects with broader climate adaptation plans, potential reforms to building standards, and considerations for public services (hospitals, care facilities) where heat risk is acute. Some articles discuss the political and practical challenges of enacting new heat limits, especially in workplaces with PPE requirements or outdoor components. [Several outlets discuss the CCC’s role and the regulatory debate.]
What this could mean in practice
- If implemented, workplaces would need to monitor indoor temperatures and adjust controls (cooling, ventilation) to stay within legal limits or risk enforcement actions. This could also influence occupational health guidance, retrofits in public buildings, and potential schedule adjustments during heatwaves. [CCC recommendations and reporting imply these practical steps.]
- Sectors at higher heat risk (healthcare, manufacturing, outdoor work) may see more stringent requirements for cooling infrastructure, access to water, breaks, and adjusted work-rest cycles. [Industry-focused reporting references these concerns.]
Illustration
- A simplified example: a sedentary office target could be capped near 27°C to protect comfort and concentration, with more preventive measures (fans, air conditioning, shaded spaces) activated as temperatures approach 24–25°C, while physically demanding roles might have a lower practical threshold (27°C or lower) depending on risk assessments.
Would you like me to pull the most current official guidance from a specific body (e.g., HSE or the CCC) or summarize the viewpoints from a particular UK city or sector? I can also provide a short timeline of key statements and any recent legislative proposals. I’ll include direct, up-to-date citations after each factual point if you’d like.
Sources
Successive governments have failed to prepare the UK for extreme heat, the climate watchdog says.
www.bbc.comWith temperatures reaching as high as 35 °C, today (26 May) is the hottest May day on record. But you probably noticed that already...
www.ladbible.comJoanne Thomas – Usdaw general secretary says: “Heat stress is a real health and safety risk that can lead to more accidents and injuries. As the temperature rises, heat exhaustion starts. People begin to suffer loss of concentration, irritability, dizziness, headaches, nausea and fainting. “Usdaw has long campaigned for the introduction of a legal maximum working temperature of 30°C, or 27°C for those doing strenuous work, with employers obliged to adopt cooling measures when the workplace...
www.usdaw.org.ukThe GMB union said workplaces should not be allowed to be hotter than 25C.
news.sky.comClimate Change Committee chair Baroness Brown slammed the 'woeful' performance of successive governments in tackling the 'present and future' threats of climate change
www.mirror.co.ukIndependent Reporters Tuesday 26 May 2026 15:08 BSTThe Met Office has warned that May's hottest temperature record could be broken again on TuesdayThe Met Office has warned that May's hottest…
www.independent.co.ukSuccessive governments have failed to prepare the UK for extreme heat, the climate watchdog says.
ground.newsClimate report calls for widespread air conditioning amid warning UK temperatures will to exceed 40C by 2050
www.independent.co.ukThe Climate Change Committee has warned the UK was "built for a climate that no longer exists" and is demanding new maximum workplace temperature laws to protect workers' health during heatwaves
www.mirror.co.uk