Heat Risk in Fremantle, SA: 2026 Assessment
Heat Risk Score
6.5/10Fremantle is experiencing an increase in the frequency and intensity of heatwaves. This poses a significant risk to vulnerable populations, particularly the elderly and those with pre-existing health conditions.
Key Facts
- Heat Risk
- Fremantle is experiencing an increase in the frequency and intensity of heatwaves. This poses a significant risk to vulnerable populations, particularly the elderly and those with pre-existing health conditions.
- Trend
- increasing
- Suburb
- Fremantle, SA
- Overall Risk
- Medium
Heat Risk Analysis
Fremantle in South 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 Fremantle 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.
Get an address-level heat risk assessment from ClimateNest for Fremantle including cooling cost estimates, heatwave vulnerability scoring, and adaptation recommendations tailored to your property.
Local Hazard Evidence
Historical Events
Record-breaking heatwave with temperatures exceeding 40°C for several consecutive days.
Adaptation & Mitigation Actions
Improve Drainage Infrastructure
Near-termUpgrade stormwater drainage systems to handle increased rainfall intensity and reduce flood risk.
Est. cost: Medium
Implement Coastal Protection Measures
Long-termConstruct seawalls and other coastal protection structures to mitigate erosion and sea level rise impacts.
Est. cost: High
Develop Heat Action Plan
ImmediateImplement a heat action plan to protect vulnerable populations during heatwaves, including cooling centers and public awareness campaigns.
Est. cost: Low
Promote Water Conservation
Near-termEncourage water conservation measures to reduce water demand and mitigate the impacts of drought.
Est. cost: Low
Council & Emergency Services
Explore Fremantle Risk Reports
View other climate risk assessments for Fremantle:
Frequently Asked Questions
How hot does Fremantle get in summer?
Fremantle in South Australia experiences summer temperatures consistent with the regional climate. BOM publishes historical temperature data for weather stations near Fremantle. Get a property-specific heat exposure assessment with projected cooling costs from ClimateNest.
Is extreme heat increasing in Fremantle?
Australia-wide, extreme heat events have become more frequent since the mid-20th century, and this trend is consistent with CSIRO climate projections for South Australia. Continued warming is likely through 2050 under all emissions scenarios.
How does heat affect energy costs for Fremantle 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 Fremantle and the performance of your building envelope.
What heat mitigation measures work best in Fremantle?
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.
Is Fremantle Safe from Climate Risk?
Enter your address below for an instant climate risk assessment for Fremantle, South Australia, covering flood, bushfire, sea level rise and more.
What A$69 could save you from
*Industry sources: ICA, APRA, RBA
Full report from A$69 · Australian addresses only · 8 hazard scores · Insurance trajectory · 2030 & 2050 projections