Heat Risk in Stirling, WA: 2026 Assessment
Heat Risk Score
7.0/10Stirling is experiencing more frequent and intense heatwaves. Rising temperatures pose a risk to vulnerable populations and infrastructure.
Key Facts
- Heat Risk
- Stirling is experiencing more frequent and intense heatwaves. Rising temperatures pose a risk to vulnerable populations and infrastructure.
- Trend
- increasing
- Suburb
- Stirling, WA
- Overall Risk
- Medium
- Postcode
- 6021
- Highest high-risk exposure
- 10% of land (bushfire)
Heat Risk Analysis
Stirling in Western Australia faces elevated extreme heat risk. The Bureau of Meteorology (BOM) reports that Australia's average temperature has increased by approximately 1.5 °C since 1910, with the frequency of extreme heat days rising across most regions.
The urban heat island (UHI) effect can make built-up areas of Stirling warmer than surrounding rural areas, particularly on summer nights. Dark roof materials, limited tree canopy cover, and heat-absorbing surfaces contribute to localised heat stress that varies by property.
The number of days exceeding 35°C is projected to increase in the coming decades, exacerbating heat stress risks.
Get an address-level heat risk assessment from ClimateNest for Stirling including cooling cost estimates, heatwave vulnerability scoring, and adaptation recommendations tailored to your property.
Stirling (postcode 6021) is tracked in ClimateNest's suburb hazard model, which maps the share of the suburb's land exposed to each hazard at high and moderate levels. The suburb's highest high-risk exposures are bushfire (10% of land in high-risk zones), riverine flood (9% of land in high-risk zones), surface flood (8.7% of land in high-risk zones). Exposure is not uniform across Stirling — individual properties can sit well above or below these averages, so an address-level check is recommended before buying, selling or insuring.
Local Hazard Evidence
Historical Events
A prolonged heatwave resulted in increased hospital admissions and strain on infrastructure.
Adaptation & Mitigation Actions
Improve stormwater drainage
Near-termUpgrade stormwater drainage systems to handle increased rainfall intensity and reduce flood risk.
Est. cost: Medium
Implement bushfire management strategies
ImmediateReduce fuel loads near properties and implement community education programs on bushfire preparedness.
Est. cost: Low
Develop a heatwave response plan
Near-termEstablish cooling centers and provide support for vulnerable populations during heatwaves.
Est. cost: Low
Protect coastal areas
Long-termImplement coastal protection measures to mitigate the impacts of sea level rise and erosion.
Est. cost: High
Promote water conservation
Near-termEncourage water conservation practices to reduce strain on water resources during prolonged dry periods.
Est. cost: Low
Council & Emergency Services
Explore Stirling Risk Reports
View other climate risk assessments for Stirling:
Frequently Asked Questions
How hot does Stirling get in summer?
Stirling in Western Australia experiences summer temperatures consistent with the regional climate. BOM publishes historical temperature data for weather stations near Stirling. Get a property-specific heat exposure assessment with projected cooling costs from ClimateNest.
Is extreme heat increasing in Stirling?
Australia-wide, extreme heat events have become more frequent since the mid-20th century, and this trend is consistent with CSIRO climate projections for Western Australia. Continued warming is likely through 2050 under all emissions scenarios.
How does heat affect energy costs for Stirling properties?
Higher temperatures increase cooling demand, which raises electricity costs. ClimateNest provides energy cost projections based on your property's specific exposure to extreme heat days in Stirling and the performance of your building envelope.
What heat mitigation measures work best in Stirling?
Effective heat mitigation includes light-coloured roofing (cool roofs), ceiling and wall insulation, double-glazed windows, external shading, cross-ventilation design, and increasing tree canopy around the property. These measures reduce indoor temperatures and cooling costs.
What share of Stirling is exposed to high bushfire risk?
ClimateNest's hazard overlay maps 10% of Stirling in high-risk zones for bushfire, with a further 61.8% in moderate-risk zones. Suburb-level exposure is not uniform — individual properties can differ from these averages, so an address-level check is recommended.
Is Stirling Safe from Climate Risk?
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