The Hidden Cost of Heat

Jul 3, 2026 | Insights | 0 comments

THE HIDDEN COST OF HEAT

Why hot weather can affect more than employee comfort.

The Met Office is forecasting another spell of hot weather across much of the UK.

For manufacturers, higher temperatures can bring more than uncomfortable working conditions. They can influence concentration, decision making, communication and productivity.

When people are working in hot environments, particularly where machinery, PPE or physical work are involved, it can take more effort to maintain the same level of performance throughout the day.

That doesn’t mean standards should slip. It means good leaders recognise when conditions have changed and respond accordingly.

A few practical adjustments, regular conversations and visible support can make a real difference to both employee wellbeing and business performance.

Investing in your people is about recognising the day-to-day factors that help them perform at their best.

FROM THE FACTORY FLOOR

Manufacturing environments can become significantly warmer than the outside temperature because of machinery, production processes and protective equipment.

The Health and Safety Executive advises employers to assess workplace risks and take reasonable steps where heat could affect employees. While there is no maximum legal workplace temperature in the UK (yet), employers still have a duty to provide a safe working environment.

For many businesses, the answer isn’t expensive investment. It starts with good planning, sensible conversations and managers who pay attention to how their teams are coping.

Ignoring changing conditions doesn’t make them disappear. Recognising them early helps prevent unnecessary problems.

LOOK BEYOND THE HEADLINES

When temperatures rise, think about the impact on your business.

Ask yourself:

  • Has concentration started to dip?
  • Are small mistakes becoming more frequent?
  • Are managers checking in with their teams?
  • Have workloads been adjusted where practical?
  • Have we recognised the extra effort people are making?

Sometimes the biggest improvements come from noticing the smallest changes.

FROM MY EXPERIENCE

One thing I’ve seen over the years is how much people appreciate a small gesture during hot weather.

Whether it’s an ice cream or a Calippo, it shows that the business recognises the extra effort people are putting in.

It doesn’t have to cost a lot. Sometimes it’s the small things that make people feel valued.

PEOPLE STRATEGY IN ACTION

Five practical actions for business leaders

✓ Speak to your managers before temperatures rise.

✓ Encourage regular check-ins with teams throughout the day.

✓ Review workloads and priorities where practical.

✓ Keep drinking water readily available and encourage regular breaks.

✓ Recognise the extra effort people are making.

EMPLOYMENT LAW WATCH

There is no maximum legal workplace temperature in the UK yet.

However, employers have a legal duty to provide a working environment that is safe and suitable. That includes assessing risks associated with high temperatures and taking reasonable steps to reduce those risks where necessary.

Reviewing working conditions during periods of hot weather demonstrates good leadership and supports employee wellbeing.

FINAL THOUGHT

Hot weather doesn’t last forever.

The impression you leave on your people does.

The businesses that people remember those where employees feel supported, appreciated and valued when conditions become more challenging.

People may forget how hot it was. They won’t forget how they were treated.

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