Heat Risk in Melville, WA: 2026 Assessment
Heat Risk Score
7.0/10Melville is expected to experience more frequent and intense heatwaves. This poses a significant risk to vulnerable populations, especially the elderly.
Key Facts
- Heat Risk
- Melville is expected to experience more frequent and intense heatwaves. This poses a significant risk to vulnerable populations, especially the elderly.
- Trend
- increasing
- Suburb
- Melville, WA
- Overall Risk
- Medium
- Postcode
- 6156
- Highest high-risk exposure
- 8% of land (surface flood)
Heat Risk Analysis
Melville 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 Melville 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 Perth metropolitan area.
Get an address-level heat risk assessment from ClimateNest for Melville including cooling cost estimates, heatwave vulnerability scoring, and adaptation recommendations tailored to your property.
Melville (postcode 6156) 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 surface flood (8% of land in high-risk zones), bushfire (7% of land in high-risk zones), tropical cyclone (3.7% of land in high-risk zones). Exposure is not uniform across Melville — 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 record-breaking temperatures in Perth, impacting Melville residents.
Adaptation & Mitigation Actions
Develop a comprehensive flood management plan
Near-termImplement measures to reduce flood risk, such as improving drainage infrastructure and protecting natural floodplains.
Est. cost: Medium
Implement heatwave early warning systems
ImmediateProvide timely alerts to residents about impending heatwaves and offer guidance on how to stay safe.
Est. cost: Low
Strengthen coastal defenses
Long-termInvest in coastal protection measures, such as seawalls and beach nourishment, to mitigate the impacts of sea level rise.
Est. cost: High
Promote water conservation
Near-termEncourage residents and businesses to use water efficiently to reduce pressure on water resources during droughts.
Est. cost: Low
Council & Emergency Services
Explore Melville Risk Reports
View other climate risk assessments for Melville:
Frequently Asked Questions
How hot does Melville get in summer?
Melville in Western Australia experiences summer temperatures consistent with the regional climate. BOM publishes historical temperature data for weather stations near Melville. Get a property-specific heat exposure assessment with projected cooling costs from ClimateNest.
Is extreme heat increasing in Melville?
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 Melville 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 Melville and the performance of your building envelope.
What heat mitigation measures work best in Melville?
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 Melville is exposed to high surface flood risk?
ClimateNest's hazard overlay maps 8% of Melville in high-risk zones for surface flood, with a further 73.1% 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 Melville Safe from Climate Risk?
Enter your address below for an instant climate risk assessment for Melville, Western Australia, covering flood, bushfire, sea level rise and more.
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