Working Safely in the Summer

As temperatures rise in July, so does the risk of heat-related illness in the workplace-especially for outdoor workers, those in poorly ventilated indoor environments, or anyone required to wear heavy or non-breathable PPE. Summer heat doesn’t just make us uncomfortable- it can seriously affect concentration, decision-making, and physical safety. That’s why it’s essential we all understand the risks and take steps to manage them.

The Dangers

Heat is a silent hazard. Unlike a trip hazard or exposed wire, it doesn’t always look dangerous-but it can cause harm. Common risks include:

· Dehydration- Causes fatigue, confusion, and headaches.

· Heat exhaustion- Symptoms include dizziness, heavy sweating, nausea, rapid pulse, and weakness.

· Heat Stroke- A medical emergency; includes confusion, loss of consciousness, and high body temperature.

· Sunburn- Increases the risk of skin cancer and can make PPE painful to wear. Fogged-up PPE or sweaty hands- Can increase the risk of drops, trips, or misjudged movements. Even moderate heat (as low as 24*C) can become dangerous when combined with physical work of PPE. It’s not just an outdoor issue- attics, kitchens, workshops, and plant rooms can trap heat fast.

The Law

Employers have a legal duty to protect workers from harm- and that includes managing the risks of working in heat. Key legislation includes:

· Health and Safety at Work etc. Act 1974- Employers must ensure, as far as reasonably practicable, the health, safety and welfare of employees.

· Management of Health and Safety at Work Regulations 1999-Requiresemployers to carry out risk assessments- including for heat stress- and implement appropriate controls.

· Personal Protective Equipment at Work Regulations 2022- PPE must be suitable for the conditions; if PPE causes heat stress, adjustments must be made. Where there’s no specific maximum temperature in the UK law, employers are expected to act reasonably to reduce risk and discomfort- especially in heat-sensitive tasks.

What can you do?

Stay Hydrated:
– Drink water regularly
– Avoid fizzy drinks, caffeine and alcohol
– Supervisors should ensure water is available and accessible on site.
Take Regular Breaks
– Encourage frequent rest in shaded or cool areas.
– Rotate tasks or slow the pace during peak temps.
– Consider early starts or later shifts to avoid midday heat.
Dress for the heat
– Use light coloured, breathable PPE where approved.
– Wear a hat and use SPF sunscreen on exposed skin.
– Ensure PPE is not contributing to heat stress.

Ventilation Indoors
– Open windows or use fans in hot rooms
– Avoid storing or running heat-generating equipment in small, enclosed spaces.
Know the signs
– Be alert for symptoms of heat stress in yourself and colleagues: Clammy skin, Dizziness, Weakness, Nausea, Confusion, Rapid heartbeat.
– If in doubt, stop work immediately, cool down and report it.
Look out for One Another
– Use a buddy system to keep an eye on each other.
– If someone shows signs of heat illness, act quickly, move them to a cooler area, provide water and call for help.

Heat is a serious workplace hazard, even if it doesn’t always look like one. It can creep up slowly, affecting your energy, focus and judgement before you even realise somethings wrong. That’s why staying hydrated, taking regular breaks, dressing appropriately, and looking out for signs of heat stress are not just good habits- they’re essential for your health and safety.

If you feel like you would like any advice or help with any of the above, please feel free to contact us on equries@wedohealthandsafety.co.uk

HR Software

Paperwork, timekeeping, and holiday schedule management isn’t on your plate
(or your desk) anymore with customisable HR software and support from WE DO HR.

Learn More