Heat Risk in Dundas, WA: 2026 Assessment
Heat Risk Score
6.0/10Dundas experiences moderate heat risk, with increasing average temperatures and more frequent heatwaves projected. Vulnerable populations are at higher risk during these events.
Key Facts
- Heat Risk
- Dundas experiences moderate heat risk, with increasing average temperatures and more frequent heatwaves projected. Vulnerable populations are at higher risk during these events.
- Trend
- increasing
- Suburb
- Dundas, WA
- Overall Risk
- Medium
- Postcode
- 6443
- Highest high-risk exposure
- 18.3% of land (bushfire)
Heat Risk Analysis
Dundas 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 Dundas 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.
Urban heat island effect may exacerbate heat in densely built areas.
Get an address-level heat risk assessment from ClimateNest for Dundas including cooling cost estimates, heatwave vulnerability scoring, and adaptation recommendations tailored to your property.
Dundas (postcode 6443) 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 (18.3% of land in high-risk zones), riverine flood (5.9% of land in high-risk zones), tropical cyclone (5.9% of land in high-risk zones). Exposure is not uniform across Dundas — 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 in January led to increased demand for emergency services and placed stress on vulnerable populations.
Adaptation & Mitigation Actions
Improve stormwater drainage
Near-termUpgrade stormwater infrastructure to handle increased rainfall intensity and reduce flood risk.
Est. cost: Medium
Implement heatwave early warning system
ImmediateDevelop a system to alert residents of impending heatwaves and provide guidance on staying safe.
Est. cost: Low
Promote energy efficiency
Long-termEncourage residents to adopt energy-efficient practices to reduce greenhouse gas emissions and lower energy bills.
Est. cost: Low
Plant more trees
Near-termIncrease tree canopy cover to provide shade and reduce the urban heat island effect.
Est. cost: Medium
Community education programs
Near-termRun workshops and distribute information to educate residents about climate risks and adaptation strategies.
Est. cost: Low
Council & Emergency Services
Explore Dundas Risk Reports
View other climate risk assessments for Dundas:
Frequently Asked Questions
How hot does Dundas get in summer?
Dundas in Western Australia experiences summer temperatures consistent with the regional climate. BOM publishes historical temperature data for weather stations near Dundas. Get a property-specific heat exposure assessment with projected cooling costs from ClimateNest.
Is extreme heat increasing in Dundas?
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 Dundas 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 Dundas and the performance of your building envelope.
What heat mitigation measures work best in Dundas?
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 Dundas is exposed to high bushfire risk?
ClimateNest's hazard overlay maps 18.3% of Dundas in high-risk zones for bushfire, with a further 59.9% 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 Dundas Safe from Climate Risk?
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