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Working in Extreme Temperatures and Hazardous Weather Risk Assessment

Working in Extreme Temperatures and Hazardous Weather Risk Assessment

  • • 100% Compliant with Australian WHS Acts & Regulations
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Working in Extreme Temperatures and Hazardous Weather Risk Assessment

Product Overview

Identify and control organisational risks associated with Working in Extreme Temperatures and Hazardous Weather through a structured, management-level Risk Assessment that supports planning, policy, training and systems development. This document helps demonstrate Due Diligence under the WHS Act, minimises operational liability, and strengthens your organisation’s WHS Risk Management framework.

Risk Categories & Hazards Covered

This document assesses risks and outlines management controls for:

  • WHS Governance, Policies and Legal Compliance: Assessment of organisational policies, duty of care, consultation arrangements and legal compliance for work in extreme temperatures and hazardous weather.
  • Extreme Weather and Temperature Risk Management Framework: Development of a structured framework to identify, assess and control heat, cold, storm, high wind and other weather-related risks across operations.
  • Weather Monitoring, Forecasting and Early Warning Systems: Management of weather data sources, alerts, thresholds and escalation triggers for suspending, modifying or rescheduling work.
  • Work Planning, Scheduling and Exposure Management: Protocols for job planning, task rotation, rest breaks, acclimatisation and work-rest regimes to limit harmful exposure.
  • Engineering Controls – Shelter, Plant and Environmental Modifications: Assessment of shade, shelters, cooling/heating systems, plant selection, guarding, and site layout to reduce environmental stressors.
  • Administrative Controls – Procedures and Safe Systems of Work: Development of documented procedures, work instructions, heat and cold stress guidelines, and stop-work criteria for hazardous weather.
  • Worker Competency, Training and Awareness: Requirements for induction, refresher training, recognition of heat and cold stress symptoms, and understanding of weather-related protocols.
  • PPE and Clothing Management Systems: Selection, issue, maintenance and replacement of weather-appropriate PPE and clothing, including sun protection, thermal wear and hydration systems.
  • Health Monitoring, Fitness for Work and Vulnerable Workers: Systems for medical screening, health surveillance, fatigue management and protection of high-risk groups (e.g. new workers, pre-existing conditions).
  • Communication, Supervision and Escalation Processes: Management of supervisory oversight, communication tools, briefing/debriefing, and escalation pathways during deteriorating weather conditions.
  • Emergency Preparedness, Response and Recovery for Weather Events: Planning for severe weather emergencies, first aid for heat and cold injuries, evacuation, rescue and post-incident recovery arrangements.
  • Contractor and Supplier Management: Integration of contractors and suppliers into organisational weather risk controls, including pre-qualification, contract clauses and performance monitoring.
  • Remote, Isolated and After-Hours Work: Assessment of additional risks and control measures for staff working alone or in remote locations during extreme temperature or hazardous weather events.
  • Environmental, Site Condition and Infrastructure Management: Management of ground conditions, access/egress, utilities, temporary structures and site infrastructure under adverse weather.
  • Performance Monitoring, Reporting and Continuous Improvement: Systems for audits, inspections, incident reporting, KPIs and review of controls to continually improve weather-related risk management.

Who is this for?

This Risk Assessment is designed for Business Owners, General Managers, Safety Managers and Project Leaders responsible for planning, approving and overseeing work in extreme temperatures and hazardous weather conditions across their organisation.

Hazards & Risks Covered

Hazard Risk Description
1. WHS Governance, Policies and Legal Compliance
  • • Absence of a formal extreme weather and temperature exposure policy aligned to WHS Act 2011 and WHS Regulations
  • • Failure to define duty holder responsibilities (PCBU, officers, workers, contractors) for managing extreme temperature and hazardous weather risks
  • • Inadequate integration of temperature and weather-related risks into the organisation’s WHS management system and risk registers
  • • Lack of documented risk criteria and decision-making thresholds for ceasing or modifying work during harsh weather conditions
  • • Poor consultation with workers and Health and Safety Representatives (HSRs) regarding heat, cold and weather-related risks
  • • No system for regular review of policies following incidents, legislative changes, or extreme weather events
2. Extreme Weather and Temperature Risk Management Framework
  • • Lack of a systematic risk assessment process for hot, cold and unpredictable weather conditions across different sites and tasks
  • • Inconsistent consideration of weather and temperature risks across projects, shifts and locations
  • • Failure to identify combined or compounding risks (e.g. heat plus high humidity, cold plus wind chill, UV plus reflective surfaces)
  • • No standardised triggers for escalating risk controls or stopping work in severe conditions
  • • Inadequate documentation of risk assessment outcomes, leading to ad-hoc decisions by supervisors
  • • Over-reliance on worker self-assessment without structured organisational controls
3. Weather Monitoring, Forecasting and Early Warning Systems
  • • Failure to review weather forecasts prior to work commencing or for the full duration of the shift
  • • Reliance on informal or outdated weather information rather than authoritative sources
  • • No process to continuously monitor real-time weather changes (heat spikes, storms, high winds, lightning, sudden cold fronts)
  • • Lack of automated alerts for severe weather warnings from the Bureau of Meteorology (BoM)
  • • Inadequate communication of changing weather risk levels to dispersed or remote work crews
  • • Failure to consider site-specific microclimates (valleys, coastal areas, urban heat islands) in weather planning
4. Work Planning, Scheduling and Exposure Management
  • • Scheduling high-exertion outdoor work during peak heat or cold periods without considering environmental conditions
  • • Inflexible work schedules that do not allow for adjustments during heatwaves, cold snaps or storms
  • • Extended exposure durations without structured rest or warm-up/cool-down breaks
  • • Insufficient planning for shade, shelter and temperature-controlled environments near work areas
  • • Lack of planning for alternative tasks when weather conditions deteriorate
  • • Failure to account for acclimatisation requirements for new or returning workers in extreme temperatures
5. Engineering Controls: Shelter, Plant and Environmental Modifications
  • • Inadequate physical protection from sun, wind, rain, lightning or cold at outdoor workplaces
  • • Lack of fixed or temporary shade structures in high UV and heat environments
  • • Insufficient wind breaks or barriers for cold and windy locations
  • • Use of plant and equipment with enclosed cabins lacking effective heating, cooling or filtration
  • • Failure to control radiant heat from plant, equipment or surfaces (e.g. metal structures, asphalt)
  • • Poor drainage and site layout increasing slip and structural risks during heavy rainfall or storms
6. Administrative Controls: Procedures, Work Instructions and Safe Systems of Work
  • • Lack of documented procedures for working in extreme temperatures and hazardous weather
  • • Inconsistent application of safe work methods across crews and contractors
  • • Procedures that do not address rapid weather changes during work, including escalation and stand-down criteria
  • • No formalised process for adjusting work pace, task rotation or staffing levels under harsh conditions
  • • Overly complex or inaccessible procedures resulting in poor field uptake
  • • Failure to incorporate learnings from incidents, near misses and weather events into procedures
7. Worker Competency, Training and Awareness
  • • Inadequate training on recognising early signs and symptoms of heat stress, heat stroke, dehydration, hypothermia and frostbite
  • • Lack of understanding of organisational weather policies, thresholds and escalation processes
  • • Supervisors not competent to conduct weather-related risk assessments and make cease-work decisions
  • • Insufficient induction for new workers and contractors regarding site-specific weather and temperature risks
  • • Cultural and language barriers reducing understanding of weather-related risks and controls
  • • Reliance on informal ‘working tough’ attitudes and under-reporting of early symptoms
8. PPE and Clothing Management Systems
  • • Lack of a structured system for issuing, replacing and maintaining weather-appropriate PPE and clothing
  • • Inadequate standards for thermal, waterproof, windproof or sun-protective garments used in outdoor work
  • • Workers purchasing their own non-compliant clothing that is unsuitable for extreme heat or cold
  • • PPE unsuited to environmental conditions leading to reduced wear compliance (e.g. heavy gear in high heat)
  • • Insufficient supply of seasonal PPE leading to sharing or improvisation
  • • No process for evaluating PPE performance after severe weather events or incidents
9. Health Monitoring, Fitness for Work and Vulnerable Workers
  • • Lack of systems to identify workers at elevated risk from extreme heat or cold (e.g. pre-existing medical conditions, some medications, pregnancy)
  • • No process for health monitoring in prolonged or severe environmental conditions
  • • Inadequate hydration and nutrition strategies for workers in hot conditions
  • • Failure to manage fatigue, sleep disruption and cumulative strain associated with harsh weather work
  • • Insufficient consideration of acclimatisation, age, fitness level and cultural factors in allocating tasks
  • • Workers feeling pressure to continue working despite symptoms due to productivity or financial concerns
10. Communication, Supervision and Escalation Processes
  • • Poor communication of weather risks and control expectations to all workers, particularly in dispersed outdoor locations
  • • Supervisors not actively monitoring workers for signs of heat or cold stress and environmental change
  • • No clear escalation pathway when conditions deteriorate unexpectedly during the workday
  • • Ineffective communication systems (e.g. radio dead zones, mobile blackspots) during storms or in remote areas
  • • Mixed messages from different managers regarding productivity expectations versus safety stand-down decisions
  • • Contractors not integrated into organisational communication and escalation processes
11. Emergency Preparedness, Response and Recovery for Weather Events
  • • Lack of emergency response plans for heat illness, hypothermia, lightning strikes, storm damage or rapid weather changes
  • • Inadequate first aid resources and equipment suited to hot and cold exposure incidents
  • • Workers and supervisors unfamiliar with emergency procedures specific to extreme weather events
  • • Delayed medical response due to remote locations, access issues or communication failures during storms or floods
  • • No process for temporary site shutdown, evacuation and controlled re-entry after severe weather
  • • Failure to capture debriefs and lessons learned following weather-related emergencies
12. Contractor and Supplier Management for Weather-Exposed Work
  • • Contractors operating under different or less stringent standards for extreme temperatures and hazardous weather
  • • Poor verification of contractor competency and systems to manage harsh environmental conditions
  • • Subcontractor work scopes not clearly defining responsibilities for weather risk management
  • • Suppliers not providing equipment suitable for high heat, cold, wind or wet conditions
  • • Limited oversight of contractor work practices during rapidly changing weather conditions
  • • Inconsistent incident reporting and data sharing between principal and contractors following weather-related events
13. Remote, Isolated and After-Hours Work in Extreme Conditions
  • • Workers exposed to extreme temperatures or sudden weather changes while working alone or in isolated locations
  • • Delayed emergency response due to distance, poor access or damaged infrastructure during storms or floods
  • • No reliable means of communication for lone workers during harsh weather conditions
  • • Inadequate journey management for travel to and from remote outdoor sites in changing weather
  • • Insufficient oversight of after-hours or weekend work where normal supervision is reduced
  • • Failure to provide location-specific weather triggers for ceasing remote or isolated work
14. Environmental, Site Condition and Infrastructure Management
  • • Site layouts that amplify heat exposure (e.g. unshaded reflective hardstand, lack of natural vegetation)
  • • Unstable ground conditions, erosion or flooding risks during intense rain events
  • • Falling objects or structural failures during high wind or storm events due to poor design or maintenance
  • • Accumulation of ice, snow or water on access ways causing slips, trips and falls where applicable
  • • Inadequate inspection regimes for weather-affected structures, scaffolds, temporary works and utilities
  • • No process for temporarily isolating or barricading unsafe areas following severe weather
15. Performance Monitoring, Reporting and Continuous Improvement
  • • Lack of key performance indicators (KPIs) related to extreme temperature and hazardous weather management
  • • Under-reporting of near misses, early symptoms and minor incidents associated with harsh weather exposure
  • • Inadequate analysis of incident and exposure data to identify trends and systemic weaknesses
  • • Failure to benchmark against industry good practice or regulatory guidance on managing extreme environmental conditions
  • • Inconsistent management review of the effectiveness of weather and temperature controls
  • • No structured process to incorporate worker feedback into system improvements

Need to add specific hazards for your workplace?

Don't worry if a specific hazard isn't listed above. Once you purchase, simply log in to your Client Portal and add your own custom hazards at no extra cost. We take care of the hard work—creating the risk ratings and control measures for free—to ensure your document is compliant within minutes.

Legislation & References

This document was researched and developed to align with:

  • Work Health and Safety Act 2011
  • Work Health and Safety Regulations 2017
  • AS/NZS ISO 31000:2018: Risk management — Guidelines
  • Safe Work Australia – Managing the Work Environment and Facilities Code of Practice: Guidance on environmental conditions, thermal comfort and safe workplaces.
  • Safe Work Australia – Managing the Risk of Working in Heat (Guidance Material): Practical guidance for preventing heat-related illness and injury.
  • Safe Work Australia – First Aid in the Workplace Code of Practice: Requirements for first aid arrangements, including treatment of heat and cold exposure.
  • AS/NZS 45001:2018: Occupational health and safety management systems — Requirements with guidance for use.
  • AS 3745-2010 (Incorporating Amendments): Planning for emergencies in facilities, including severe weather and environmental events.
  • AS/NZS 2210 series: Safety, protective and occupational footwear for weather-exposed work.
  • AS/NZS 4399:2017: Sun protective clothing — Evaluation and classification for UV protection.
Standard Risk Assessment Features (Click to Expand)
  • Comprehensive hazard identification for all activities
  • Risk rating matrix with likelihood and consequence analysis
  • Existing control measures evaluation
  • Residual risk assessment after controls
  • Hierarchy of controls recommendations
  • Action priority rankings
  • Review and monitoring requirements
  • Consultation and communication records
  • Legal compliance references
  • Sign-off and approval sections

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