Heat Risk in Perth, TAS: 2026 Assessment
Heat Risk Score
5.0/10Perth experiences moderate heat risk, with increasing average temperatures and more frequent heatwaves projected.
Key Facts
- Heat Risk
- Perth experiences moderate heat risk, with increasing average temperatures and more frequent heatwaves projected.
- Trend
- increasing
- Suburb
- Perth, TAS
- Overall Risk
- Medium
- Postcode
- 7300
- Highest high-risk exposure
- 11.9% of land (surface flood)
Heat Risk Analysis
Perth in Tasmania 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 Perth 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 Tasmania.
Get an address-level heat risk assessment from ClimateNest for Perth including cooling cost estimates, heatwave vulnerability scoring, and adaptation recommendations tailored to your property.
Perth (postcode 7300) 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 (11.9% of land in high-risk zones), extreme wind (8.5% of land in high-risk zones), bushfire (4.7% of land in high-risk zones). Exposure is not uniform across Perth — 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 affected Tasmania, with record temperatures recorded in some areas.
Adaptation & Mitigation Actions
Improve Flood Defenses
Near-termInvest in flood mitigation infrastructure, such as levees and improved drainage systems, to protect properties from riverine flooding.
Est. cost: High
Develop a Heat Action Plan
ImmediateImplement a heat action plan to protect vulnerable populations during heatwaves, including cooling centers and public awareness campaigns.
Est. cost: Medium
Enhance Bushfire Preparedness
Near-termImplement bushfire mitigation measures, such as fuel reduction and community education programs, to reduce the risk of bushfires.
Est. cost: Medium
Upgrade Infrastructure
Long-termUpgrade critical infrastructure to withstand the impacts of climate change, including more intense storms and heatwaves.
Est. cost: High
Council & Emergency Services
Explore Perth Risk Reports
Frequently Asked Questions
How hot does Perth get in summer?
Perth in Tasmania experiences summer temperatures consistent with the regional climate. BOM publishes historical temperature data for weather stations near Perth. Get a property-specific heat exposure assessment with projected cooling costs from ClimateNest.
Is extreme heat increasing in Perth?
Australia-wide, extreme heat events have become more frequent since the mid-20th century, and this trend is consistent with CSIRO climate projections for Tasmania. Continued warming is likely through 2050 under all emissions scenarios.
How does heat affect energy costs for Perth 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 Perth and the performance of your building envelope.
What heat mitigation measures work best in Perth?
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 Perth is exposed to high surface flood risk?
ClimateNest's hazard overlay maps 11.9% of Perth in high-risk zones for surface flood, with a further 65.3% 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 Perth Safe from Climate Risk?
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