Heat Risk in Kewdale, WA: 2026 Assessment
Heat Risk Score
7.0/10Kewdale is subject to a high risk of heatwaves, with increasing average temperatures and more frequent extreme heat events projected. This poses a significant risk to vulnerable populations.
Key Facts
- Heat Risk
- Kewdale is subject to a high risk of heatwaves, with increasing average temperatures and more frequent extreme heat events projected. This poses a significant risk to vulnerable populations.
- Trend
- increasing
- Suburb
- Kewdale, WA
- Overall Risk
- Medium
- Postcode
- 6105
- Highest high-risk exposure
- 15.9% of land (bushfire)
Heat Risk Analysis
Kewdale 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 Kewdale 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 and intense in Kewdale.
Get an address-level heat risk assessment from ClimateNest for Kewdale including cooling cost estimates, heatwave vulnerability scoring, and adaptation recommendations tailored to your property.
Kewdale (postcode 6105) 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 (15.9% of land in high-risk zones), surface flood (12.5% of land in high-risk zones), riverine flood (7% of land in high-risk zones). Exposure is not uniform across Kewdale — 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 the energy grid.
Adaptation & Mitigation Actions
Improve Drainage Infrastructure
Near-termUpgrade and expand drainage systems to better manage increased rainfall and reduce the risk of flooding.
Est. cost: Medium
Implement Heat Action Plan
ImmediateDevelop and implement a heat action plan to protect vulnerable populations during heatwaves, including establishing cooling centers and providing public awareness campaigns.
Est. cost: Low
Promote Water Conservation
Long-termEncourage water conservation measures to reduce demand on water resources and mitigate the impacts of drought.
Est. cost: Low
Increase Green Spaces
Near-termIncrease the amount of green space in Kewdale to reduce the urban heat island effect and provide shade and cooling.
Est. cost: Medium
Council & Emergency Services
Explore Kewdale Risk Reports
View other climate risk assessments for Kewdale:
Frequently Asked Questions
How hot does Kewdale get in summer?
Kewdale in Western Australia experiences summer temperatures consistent with the regional climate. BOM publishes historical temperature data for weather stations near Kewdale. Get a property-specific heat exposure assessment with projected cooling costs from ClimateNest.
Is extreme heat increasing in Kewdale?
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 Kewdale 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 Kewdale and the performance of your building envelope.
What heat mitigation measures work best in Kewdale?
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 Kewdale is exposed to high bushfire risk?
ClimateNest's hazard overlay maps 15.9% of Kewdale in high-risk zones for bushfire, with a further 64.8% 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 Kewdale Safe from Climate Risk?
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