How UK Employers Can Support Employees During Extreme Heatwaves

🔥 What’s the Legal position?

The Workplace (Health, Safety and Welfare) Regulations 1992 state that the temperature in all indoor workplaces must be “reasonable.” While there’s no set upper limit, the Health and Safety Executive (HSE) advises employers to take action when workplace temperatures become uncomfortable.

✅ 7 Practical Steps to Take During Hot Weather

Conduct a Heat Risk Assessment

Identify at-risk groups (e.g. pregnant employees, those with health conditions) and assess areas that are poorly ventilated.

Adjust Working Hours Where Possible

Consider allowing employees to start earlier and finish earlier, or stagger shifts to avoid midday heat.

Enable Remote Working

If roles allow, give employees the option to work from home in cooler surroundings.

Relax Dress Codes

Allow employees to wear lighter, looser clothing that’s still professional. Avoid synthetic fabrics that trap heat.

Improve Workplace Ventilation

Install fans or portable air conditioners, and make sure windows can open safely. Avoid using equipment that generates excessive heat during peak hours.

Provide Hydration and Breaks

Make sure cold water is readily available. Encourage employees to take regular short breaks.

Train Managers to Spot Heat-Related Illnesses

Signs of heat exhaustion and heatstroke (NHS) include dizziness, headaches, excessive sweating, and nausea. Make sure managers know when to act.

👥 Outdoor Workers: Extra Precautions

For employees working outdoors, employers should:

• Provide shaded areas for breaks.
• Supply hats, UV-protective clothing, and sunscreen.
• Rotate tasks to avoid long sun exposure.
• Consider adjusting working patterns to start prior to the highest temperatures

📣 Communication is Key

Inform your teams of any changes due to hot weather and encourage feedback. Employees will appreciate that their health is being considered — it builds trust and loyalty.

Conclusion: Don't Wait for the Heatwave

Preparing your workplace for extreme temperatures is not just a wellbeing issue — it’s a business continuity one. The better prepared you are, the less disruption and the happier your team.