Heat Risk in Donnybrook, WA: 2026 Assessment
Heat Risk Score
5.0/10Donnybrook is likely to experience more frequent and intense heatwaves. This will increase the risk of heat stress, particularly for vulnerable populations.
Key Facts
- Heat Risk
- Donnybrook is likely to experience more frequent and intense heatwaves. This will increase the risk of heat stress, particularly for vulnerable populations.
- Trend
- increasing
- Suburb
- Donnybrook, WA
- Overall Risk
- Medium
- Postcode
- 6239
- Highest high-risk exposure
- 11.1% of land (bushfire)
Heat Risk Analysis
Donnybrook 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 Donnybrook 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.
Heatwaves are becoming more frequent in the region.
Get an address-level heat risk assessment from ClimateNest for Donnybrook including cooling cost estimates, heatwave vulnerability scoring, and adaptation recommendations tailored to your property.
Donnybrook (postcode 6239) 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 (11.1% of land in high-risk zones), riverine flood (7% of land in high-risk zones), extreme wind (6.1% of land in high-risk zones). Exposure is not uniform across Donnybrook — 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 heat stress and health concerns for vulnerable populations.
Adaptation & Mitigation Actions
Improve Flood Defenses
Near-termInvest in infrastructure to mitigate flood risk, such as levees and improved drainage systems.
Est. cost: High
Bushfire Preparedness
ImmediateImplement community education programs and support residents in preparing their properties for bushfires.
Est. cost: Medium
Heatwave Action Plan
Near-termDevelop a heatwave action plan to protect vulnerable populations during extreme heat events.
Est. cost: Low
Water Resource Management
Long-termImplement strategies to conserve water and ensure a sustainable water supply in the face of climate change.
Est. cost: Medium
Council & Emergency Services
Explore Donnybrook Risk Reports
View other climate risk assessments for Donnybrook:
Frequently Asked Questions
How hot does Donnybrook get in summer?
Donnybrook in Western Australia experiences summer temperatures consistent with the regional climate. BOM publishes historical temperature data for weather stations near Donnybrook. Get a property-specific heat exposure assessment with projected cooling costs from ClimateNest.
Is extreme heat increasing in Donnybrook?
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 Donnybrook 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 Donnybrook and the performance of your building envelope.
What heat mitigation measures work best in Donnybrook?
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 Donnybrook is exposed to high bushfire risk?
ClimateNest's hazard overlay maps 11.1% of Donnybrook in high-risk zones for bushfire, with a further 73.5% 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 Donnybrook Safe from Climate Risk?
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