Heat Risk in Glenelg, SA: 2026 Assessment
Heat Risk Score
7.0/10Glenelg experiences a high risk of heatwaves, particularly during summer months. Urban heat island effect and increasing average temperatures contribute to this risk.
Key Facts
- Heat Risk
- Glenelg experiences a high risk of heatwaves, particularly during summer months. Urban heat island effect and increasing average temperatures contribute to this risk.
- Trend
- increasing
- Suburb
- Glenelg, SA
- Overall Risk
- Medium
- Postcode
- 5045
- Highest high-risk exposure
- 12% of land (bushfire)
Heat Risk Analysis
Glenelg 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 Glenelg 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.
Glenelg experiences several heat stress events each summer, impacting vulnerable populations.
Get an address-level heat risk assessment from ClimateNest for Glenelg including cooling cost estimates, heatwave vulnerability scoring, and adaptation recommendations tailored to your property.
Glenelg (postcode 5045) 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 (12% of land in high-risk zones), surface flood (5.7% of land in high-risk zones), coastal inundation (5.4% of land in high-risk zones). Exposure is not uniform across Glenelg — 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 heat stress and health concerns for residents.
Adaptation & Mitigation Actions
Improve drainage infrastructure
Near-termUpgrade drainage systems to handle increased rainfall intensity and reduce the risk of flash flooding.
Est. cost: Medium
Implement coastal protection measures
ImmediateConstruct seawalls and other coastal defenses to protect against erosion and sea level rise.
Est. cost: High
Promote energy efficiency and reduce urban heat island effect
Long-termEncourage the use of cool roofs, green spaces, and energy-efficient buildings to mitigate the urban heat island effect.
Est. cost: Medium
Develop community emergency plans
Near-termCreate community-based emergency plans to prepare for and respond to extreme weather events.
Est. cost: Low
Council & Emergency Services
Explore Glenelg Risk Reports
View other climate risk assessments for Glenelg:
Frequently Asked Questions
How hot does Glenelg get in summer?
Glenelg in South Australia experiences summer temperatures consistent with the regional climate. BOM publishes historical temperature data for weather stations near Glenelg. Get a property-specific heat exposure assessment with projected cooling costs from ClimateNest.
Is extreme heat increasing in Glenelg?
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 Glenelg 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 Glenelg and the performance of your building envelope.
What heat mitigation measures work best in Glenelg?
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 Glenelg is exposed to high bushfire risk?
ClimateNest's hazard overlay maps 12% of Glenelg in high-risk zones for bushfire, with a further 64.6% 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 Glenelg Safe from Climate Risk?
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