Heat Risk in Cardiff Heights, WA: 2026 Assessment
Heat Risk Score
5.0/10Cardiff Heights experiences moderate heat risk, with increasing average temperatures and more frequent heatwave events projected.
Key Facts
- Heat Risk
- Cardiff Heights experiences moderate heat risk, with increasing average temperatures and more frequent heatwave events projected.
- Trend
- increasing
- Suburb
- Cardiff Heights, WA
- Overall Risk
- Medium
- Postcode
- 6225
- Highest high-risk exposure
- 22.1% of land (bushfire)
Heat Risk Analysis
Cardiff Heights 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 Cardiff Heights 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 future.
Get an address-level heat risk assessment from ClimateNest for Cardiff Heights including cooling cost estimates, heatwave vulnerability scoring, and adaptation recommendations tailored to your property.
Cardiff Heights (postcode 6225) 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 (22.1% of land in high-risk zones), surface flood (11.1% of land in high-risk zones), riverine flood (6.5% of land in high-risk zones). Exposure is not uniform across Cardiff Heights — 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
Prolonged heatwave conditions put strain on infrastructure and increased health risks for vulnerable residents.
Adaptation & Mitigation Actions
Improve Flood Defenses
Near-termInvest in improved drainage systems and flood barriers to protect properties from inundation.
Est. cost: Medium
Bushfire Preparedness
ImmediateImplement bushfire mitigation strategies, such as clearing vegetation around homes and developing evacuation plans.
Est. cost: Low
Heatwave Action Plan
Near-termDevelop a community heatwave action plan to protect vulnerable residents during extreme heat events.
Est. cost: Low
Sustainable Urban Planning
Long-termPromote sustainable urban planning practices to reduce the urban heat island effect and improve resilience to climate change.
Est. cost: High
Council & Emergency Services
Explore Cardiff Heights Risk Reports
View other climate risk assessments for Cardiff Heights:
Frequently Asked Questions
How hot does Cardiff Heights get in summer?
Cardiff Heights in Western Australia experiences summer temperatures consistent with the regional climate. BOM publishes historical temperature data for weather stations near Cardiff Heights. Get a property-specific heat exposure assessment with projected cooling costs from ClimateNest.
Is extreme heat increasing in Cardiff Heights?
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 Cardiff Heights 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 Cardiff Heights and the performance of your building envelope.
What heat mitigation measures work best in Cardiff Heights?
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 Cardiff Heights is exposed to high bushfire risk?
ClimateNest's hazard overlay maps 22.1% of Cardiff Heights in high-risk zones for bushfire, with a further 68.2% 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 Cardiff Heights Safe from Climate Risk?
Enter your address below for an instant climate risk assessment for Cardiff Heights, Western Australia, covering flood, bushfire, sea level rise and more.
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