Heat Risk in Jennings, NSW: 2026 Assessment
Heat Risk Score
4.5/10Jennings experiences moderate heat risk, with increasing average temperatures and more frequent heatwaves projected. This poses a risk to vulnerable populations.
Key Facts
- Heat Risk
- Jennings experiences moderate heat risk, with increasing average temperatures and more frequent heatwaves projected. This poses a risk to vulnerable populations.
- Trend
- increasing
- Suburb
- Jennings, NSW
- Overall Risk
- Medium
- Postcode
- 4383
- Highest high-risk exposure
- 23.5% of land (bushfire)
Heat Risk Analysis
Jennings in New South Wales 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 Jennings 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, leading to more frequent heat stress events.
Get an address-level heat risk assessment from ClimateNest for Jennings including cooling cost estimates, heatwave vulnerability scoring, and adaptation recommendations tailored to your property.
Jennings (postcode 4383) 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 (23.5% of land in high-risk zones), surface flood (6.3% of land in high-risk zones), extreme wind (5.5% of land in high-risk zones). Exposure is not uniform across Jennings — 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 high temperatures in Jennings, placing stress on vulnerable residents.
Adaptation & Mitigation Actions
Improve Flood Defenses
Near-termUpgrade drainage infrastructure and implement flood control measures to reduce flood risk.
Est. cost: Medium
Bushfire Preparedness
ImmediateImplement community education programs and support residents in preparing their properties for bushfires.
Est. cost: Low
Heatwave Management Plan
Near-termDevelop and implement a heatwave management plan to protect vulnerable populations during extreme heat events.
Est. cost: Low
Water Conservation Strategies
Long-termPromote water conservation measures to address potential water shortages during prolonged droughts.
Est. cost: Low
Council & Emergency Services
Explore Jennings Risk Reports
View other climate risk assessments for Jennings:
Frequently Asked Questions
How hot does Jennings get in summer?
Jennings in New South Wales experiences summer temperatures consistent with the regional climate. BOM publishes historical temperature data for weather stations near Jennings. Get a property-specific heat exposure assessment with projected cooling costs from ClimateNest.
Is extreme heat increasing in Jennings?
Australia-wide, extreme heat events have become more frequent since the mid-20th century, and this trend is consistent with CSIRO climate projections for New South Wales. Continued warming is likely through 2050 under all emissions scenarios.
How does heat affect energy costs for Jennings 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 Jennings and the performance of your building envelope.
What heat mitigation measures work best in Jennings?
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 Jennings is exposed to high bushfire risk?
ClimateNest's hazard overlay maps 23.5% of Jennings in high-risk zones for bushfire, with a further 51.8% 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 Jennings Safe from Climate Risk?
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