Heat Risk in Aldinga, SA: 2026 Assessment

Aldinga, South Australia· UNKNOWN
Aldinga is susceptible to heatwaves, with increasing average temperatures during summer months. This poses a risk to vulnerable populations.Updated 13 Mar 2026

Heat Risk Score

7.0/10

Aldinga is susceptible to heatwaves, with increasing average temperatures during summer months. This poses a risk to vulnerable populations.

Key Facts

Heat Risk
Aldinga is susceptible to heatwaves, with increasing average temperatures during summer months. This poses a risk to vulnerable populations.
Trend
increasing
Suburb
Aldinga, SA
Overall Risk
Medium
Postcode
5173
Region
Regional SA
Median property value
$375,000
Dominant hazard
extreme heat (6/10)
Highest high-risk exposure
19.5% of land (bushfire)

Heat Risk Analysis

Aldinga 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 Aldinga 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 coming decades.

Get an address-level heat risk assessment from ClimateNest for Aldinga including cooling cost estimates, heatwave vulnerability scoring, and adaptation recommendations tailored to your property.

Climate projections show heat risk in Aldinga is tied to the broader Regional SA climate. The suburb scores 6 on the 0–10 heat index, with the number of days above 35°C expected to grow through 2050 — a factor that affects cooling costs, garden viability and property desirability.

Aldinga located in Regional SA (postcode 5173), is a South Australia suburb tracked by ClimateNest. The suburb's median property value is $375,000, and understanding climate exposure is becoming a standard part of due diligence for buyers, lenders and insurers pricing property in Aldinga.

Across the six hazard axes ClimateNest models, the dominant climate risk in Aldinga is extreme heat (score 6/10), with moderate exposure. Insurance signals for the suburb point to premiums rising moderately (+25% by 2030). These suburb-level signals help prioritise which properties need the closest look — the actual risk of any single home can only be confirmed with an address-level report.

Whether you are buying, selling or renovating in Aldinga, extreme heat is the hazard to weigh first. Local council planning controls, state hazard mapping and lender climate policies each reference this kind of suburb-level signal, and property decisions in Aldinga are increasingly made with an address-level climate report in hand.

Local Hazard Evidence

Avg January Max Temp28.5 °C
Heat Stress Events/Year3
Urban Heat ContextThe number of days exceeding 35°C is projected to increase in the coming decades.

Historical Events

2019
Moderate

A prolonged heatwave affected South Australia, including Aldinga, with temperatures exceeding 40°C for several days.

Adaptation & Mitigation Actions

Improve Bushfire Preparedness

Immediate

Create a bushfire survival plan, clear vegetation around your home, and ensure you have adequate insurance coverage.

Est. cost: Low

Enhance Home Cooling

Near-term

Install energy-efficient air conditioning, improve insulation, and plant shade trees to reduce the impact of heatwaves.

Est. cost: Medium

Strengthen Coastal Defenses

Long-term

Support local efforts to protect the coastline from erosion and sea level rise, such as dune restoration and seawall construction.

Est. cost: High

Upgrade Drainage Infrastructure

Near-term

Advocate for improved drainage systems to reduce the risk of flooding from heavy rainfall events.

Est. cost: Medium

Council & Emergency Services

City of Onkaparinga
Emergency Services

Data last updated: 13 March 2026

Explore Aldinga Risk Reports

Frequently Asked Questions

How hot does Aldinga get in summer?

Aldinga in South Australia experiences summer temperatures consistent with the regional climate. BOM publishes historical temperature data for weather stations near Aldinga. Get a property-specific heat exposure assessment with projected cooling costs from ClimateNest.

Is extreme heat increasing in Aldinga?

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 Aldinga 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 Aldinga and the performance of your building envelope.

What heat mitigation measures work best in Aldinga?

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 are the main climate risks in Aldinga?

ClimateNest's suburb model rates Aldinga's dominant climate risk as extreme heat at 6/10 on a 0–10 index, followed by bushfire (5/10) and damaging wind (4/10). These are suburb-level averages — an address-level report is needed to confirm the risk of a specific property in Aldinga.

What share of Aldinga is exposed to high bushfire risk?

ClimateNest's hazard overlay maps 19.5% of Aldinga in high-risk zones for bushfire, with a further 72.2% 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 Aldinga Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Aldinga, South Australia, covering flood, bushfire, sea level rise and more.

Free instant previewCSIRO-powered data

What A$69 could save you from

$7.2B
2022 insured disaster losses*
$300B+
climate risk to property by 2050*
30-120%
insurance premium increases in high-risk areas*

*Industry sources: ICA, APRA, RBA

Full report from A$69 · Australian addresses only · 8 hazard scores · Insurance trajectory · 2030 & 2050 projections