Staying Safe When The Heat Is On

If you’re reading this in the U.K., you could be forgiven for thinking that the risks that come with warmer weather aren’t so relevant to you, but it’s becoming increasingly common to see high temperatures during British summers which means employers must prioritse the health and safety of workers exposed to heat especially those working outdoors or in poorly ventilated areas.

Why is heat such a serious workplace hazard?

Extreme heat can lead to dehydration, heat exhaustion, and even heatstroke — a life-threatening condition. It also increases the likelihood of accidents due to fatigue, reduced concentration, and slippery palms or surfaces.

High-risk sectors include:

• Construction and infrastructure
• Utilities and rail maintenance
• Landscaping and groundskeeping
• Agriculture and logistics

What are the legal responsibilities for Employers?

Here’s where it gets tricky, there’s currently no maximum legal working temperature under UK Law but the Health and Safety At Work Act 1974 requires employers to ensure the health, safety, and welfare of their employees, which includes protecting them from environmental hazards like excessive heat – so ignore it at your peril.

The Management of Health and Safety At Work Regulations 1999 also require remployre to assess and manage risks, including those arising from hot weather.

What steps can employers take?

1. Adjust Work Schedules

• Avoid strenuous tasks during peak sun hours (11 am–3 pm).
• Consider early starts or split shifts to work around the worst heat.

2. Provide Shade & Rest Areas

• Set up shaded rest zones on-site where workers can cool down.
• Encourage frequent breaks, especially for new or vulnerable workers.

3. Hydration is Critical

• Supply cool drinking water near work areas.
• Remind workers to drink regularly, not just when they feel thirsty.

4. Issue Appropriate PPE

• Lightweight, breathable, UV-protective clothing and hats.
• Cooling gear such as neck wraps or vests where appropriate.

5. Train Workers & Supervisors

• Teach early signs of heat-related illness (dizziness, headache, nausea).
• Make sure everyone knows how to respond to symptoms.

Need some support? Get in touch for an informal chat!