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Stay safe and productive working outdoors in hot weather

July 08, 2024

As global temperatures rise, outdoor work is becoming more challenging and dangerous. Whether you're in construction, landscaping, agriculture, or logistics, the blazing sun and high temperatures can pose serious risks to your employees’ health. From dehydration and heat exhaustion, to potentially deadly heat stroke - the hazards of working in extreme heat are very real.

But don't sweat it—we've got you covered. Adapting to extreme heat doesn't have to be daunting. With the right strategies, you can ensure your people stay safe, healthy, and productive even on the hottest days.

In this article, NFP’s Director of Health and Safety Jonathan Williams dives into his essential tips and tricks, from staying hydrated while dressing smart to how to stay protected.

Understanding the risks

Firstly, it’s important to define the adverse effects that the sun and extreme heat pose to those working outdoors. Illnesses such as heat stroke, heat exhaustion and heat syncope (fainting) can be particularly dangerous and can affect anyone if they are unable to cool down or become dehydrated. Dehydration also affects physical performance and cognitive function, increasing the risk of accidents.

Exposure to the sun’s ultraviolet (UV) rays can also cause sunburn, leading to pain, swelling, and blistering. Severe sunburns can increase the risk of skin infections and long-term skin damage, with repeated sun exposure being a major risk factor for skin cancer including melanoma, which can be fatal.

Additionally, high temperatures can worsen air quality by increasing ground-level ozone and other pollutants, which can exacerbate respiratory conditions and reduce lung function.

Who is at risk?

Certain groups of outdoor workers are more at risk of the harmful effects of the sun due to the nature of their jobs and the amount of time they spend exposed to high temperatures and direct sunlight, such as those in construction, landscaping, agriculture, roofing, couriers and road maintenance.

If you have darker skin, your risk of skin cancer is lower, but it still exists. When the sun is intense, it's wise to follow protective measures. Be especially cautious if you have:

  • Fair or freckled skin that burns easily
  • Red or fair hair and light-coloured eyes
  • Numerous moles

Heat-related illness particularly affects elderly people, children and babies, pregnant women and those with chronic health conditions.

The laws on working in heat

Currently, there is no maximum temperature limit for workplaces in the UK1. Since each workplace varies, setting a universal upper limit is impractical. In many indoor workplaces, high temperatures are not seasonal but are a result of specific work activities, such as in bakeries or foundries.

However, employers must stick to health and safety at work laws, including:

  • keeping the temperature at a comfortable level
  • providing clean and fresh air2

5 essential tips for businesses operating in warmer weather

In my latest video, I revealed my top 5 tips for businesses to support their teams working outdoors in extreme heat this summer. Don't miss these essential insights to keep your workforce safe and productive.


You can ensure your employees are protected from sun exposure whilst working outdoors by ensuring they take the following measures:
  • Keeping their top on.
  • Wearing a hat with a brim or a flap that covers the ears and the back of the neck.
  • Staying in the shade whenever possible, during breaks and especially at lunch time.
  • Using a high factor sunscreen of at least SPF15 on any exposed skin.
  • Drinking plenty of water to avoid dehydration.
  • Checking their skin regularly for any unusual moles or spots.
  • Encouraging them to see a doctor promptly if they find anything that is changing in shape, size or colour, itching or bleeding.

To thrive outdoors in hot weather, proactive planning and execution are key. By understanding risks and implementing strategies like hydration, proper clothing, and scheduled breaks, both workers and employers ensure safety and productivity. Prioritise heat safety for a healthy, efficient workforce. Stay cool, stay safe, and keep thriving under the sun!


Author

Jonathan Williams CMIOSH, Managing Director - Health and Safety

With many years of experience in the health and safety field, NFP’s health and safety division is on hand to provide a holistic service that helps safeguard your people’s safety at work, as well as their long-term physical and mental health.

Read more about our health and safety services, and how we can support your business to stay safe and compliant.



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