Every summer, rising temperatures create challenges for Australian workplaces. For workers exposed to outdoor heat, physically demanding tasks, hot machinery or poorly ventilated environments, heat can become more than a matter of comfort — it can become a workplace health and safety risk.
For employers, preparing for heat means understanding where exposure occurs, recognising how it can affect workers and putting appropriate controls in place before temperatures become extreme.
Heat management should therefore be part of workplace planning — not something addressed only after a heatwave arrives.
The Growing Workplace Heat Risk in Australia
Heat exposure can occur across a wide range of Australian workplaces.
Outdoor workers in industries such as construction, mining, agriculture, logistics and emergency services may face direct sunlight, high temperatures and physically demanding work. Indoor workers can also experience heat from machinery, radiant heat sources, poor ventilation or enclosed environments.
Heat risk is influenced by more than air temperature alone. Humidity, radiant heat, airflow, workload, clothing and personal protective equipment can all affect how much heat a worker experiences.
This means a temperature that may be manageable in one workplace could create significantly greater heat strain in another.
Safe Work Australia identifies working in heat as a workplace hazard that needs to be managed as part of an organisation’s broader responsibility to protect worker health and safety.
How Heat Can Affect Workers and Businesses
Health and Safety Risks
When the body gains heat faster than it can release it, workers can experience increasing thermal strain.
Possible signs and effects can include:
- Excessive sweating
- Fatigue and weakness
- Headache
- Dizziness
- Nausea
- Reduced concentration
- Heat exhaustion
- Heat stroke in severe cases
Heat can also contribute to fatigue during physically demanding work.
When workers become increasingly tired or uncomfortable, maintaining concentration and physical performance can become more difficult.
Understanding heat fatigue as a workplace safety risk can help employers recognise why managing heat is about more than preventing severe heat illness.
Productivity and Workplace Performance
Heat can also affect how effectively people perform physically demanding or concentration-intensive tasks.
As thermal strain increases, workers may need additional rest periods, work at a slower pace or find it more difficult to maintain physical and cognitive performance.
Over time, this can affect productivity, absenteeism and overall workplace performance.
For a deeper look at the business impact, read our guide on how heat impacts productivity and absenteeism in industrial settings.
Employer Responsibilities for Working in Heat
Australian employers have responsibilities under work health and safety laws to manage risks to worker health and safety.
For heat-related risks, this means identifying where heat exposure occurs, assessing the level of risk and implementing appropriate controls so far as reasonably practicable.
There is no single temperature that determines whether every workplace is safe or unsafe.
Instead, heat risk should be considered in the context of factors such as:
- Air temperature
- Humidity
- Air movement
- Radiant heat
- Physical workload
- Duration of exposure
- Clothing and personal protective equipment
- Access to shade or cooler recovery areas
- Individual worker circumstances
Employers should also ensure workers and supervisors understand the signs of heat-related illness and know what to do when someone shows symptoms.
Heat management should be incorporated into normal workplace risk management rather than treated solely as an emergency response during extreme weather.
Practical Steps Employers Can Take
Preparing before temperatures rise gives businesses more time to identify risks and put appropriate controls in place.
| Area | Action |
|---|---|
| Risk Assessment | Review indoor and outdoor work areas for heat hazards, including radiant heat, machinery, ventilation, protective clothing and physically demanding tasks. |
| Scheduling | Where practical, schedule strenuous work during cooler periods, rotate demanding tasks and consider additional rest periods during hot conditions. |
| Environmental Controls | Improve ventilation and airflow, provide shade, use air conditioning or appropriate cooling where available, and reduce exposure to radiant heat sources. |
| Hydration | Make cool drinking water readily accessible and provide workers with regular opportunities to hydrate. |
| Training & Awareness | Educate workers and supervisors about heat-related symptoms, appropriate responses and the importance of reporting symptoms early. |
| Monitoring | Monitor weather forecasts and workplace conditions rather than relying only on air temperature. |
| Emergency Preparedness | Ensure appropriate first aid and emergency procedures are available for workers experiencing heat-related illness. |
| Personal Cooling | Consider appropriate personal cooling equipment as one component of a broader workplace heat management strategy. |
The most effective approach will depend on the workplace, the tasks being performed and the level of heat exposure.
Cooling as Part of Workplace Heat Management
No single measure can eliminate every risk associated with working in hot conditions.
Effective heat management typically involves a combination of controls, including appropriate scheduling, hydration, rest breaks, shade, ventilation, worker training and monitoring conditions.
Personal cooling can complement these measures, particularly for workers exposed to physically demanding or persistently hot environments.
The Arctic Heat Cooling Vest provides wearable cooling using polymer gel technology without requiring batteries or continuous electrical power.
Soak. Dry. Freeze. Wear.
Because the vest is portable and wearable, it can be incorporated into scheduled cooling and recovery periods alongside other workplace heat controls.
Cooling equipment should not replace appropriate workplace risk assessment or other necessary controls. Instead, it can form one part of a broader strategy for managing worker heat exposure.
Why Preparing Before Summer Matters
Heat management is much easier to plan before extreme temperatures arrive.
Waiting until a heatwave begins can leave businesses trying to organise equipment, change schedules or introduce procedures while workers are already dealing with challenging conditions.
Preparing early gives employers time to:
- Review existing heat management procedures
- Identify higher-risk jobs and work areas
- Check hydration and rest facilities
- Train workers and supervisors
- Review emergency procedures
- Organise personal cooling equipment where appropriate
- Test procedures before they are urgently needed
This approach moves heat management from reactive to proactive.
Understanding common misconceptions about working in hot conditions can also help employers prepare more effectively. Read our guide to heat stress myths that put workers at risk.
Prepare Before the Heat Arrives
Workplace heat should not be treated as a problem only when a heatwave arrives.
Preparing early gives employers time to assess workplace risks, review procedures, train workers and supervisors, organise appropriate controls and ensure cooling equipment is available before conditions become more demanding.
For Australian employers, managing heat is ultimately about creating a safer and better-prepared workplace while supporting workers who may be exposed to challenging conditions.
Don’t wait for extreme heat to put your workplace heat plan to the test.
Explore Arctic Heat workplace cooling solutions or contact admin@arcticheat.com.au to discuss cooling options for your workforce.
