Your body needs time to adapt to working in hot weather. This process can take 4 to 7 working days, but can vary with every individual. You should slowly increase the time you spend working outdoors over this time period to make sure you can work safely.
Working in the Heat Infographic (PDF, 261 KB)
Heat stress
Be aware of the signs of heat stress in yourself and your co-workers, so it can be treated right away.
Early warning signs
- headache
- confusion
- dizziness and fatigue
- dehydration
- heavy sweating
- muscle cramps
- changes to breathing and pulse rate
Heat stroke
Heat stress can progress to heat stroke. Heat stroke occurs when your internal body temperature is raised. It’s a life-threatening condition that requires immediate medical attention.
How to avoid overheating
- drink lots of water
- take breaks
- wear protective equipment designed to reduce heat stress
- minimize physical activity in hot environments
- know the signs of heat stress
What employers can do
Hot weather is a workplace hazard. Like all hazards, employers must have a plan to control or eliminate dangers associated with working in the heat.
Some things employers can do include:
- changing the work location to a cooler shaded area
- creating a cooling station where workers can rest
- allowing workers to adapt to the temperature
- scheduling more physically demanding jobs for the cooler times of the day
- providing plenty of cool drinking water
Working in the heat