Heat Risk in Little Jilliby, NSW: 2026 Assessment
Heat Risk Score
4.0/10Little Jilliby is likely to experience more frequent and intense heatwaves. This poses a risk to vulnerable populations, such as the elderly and those with chronic health conditions.
Key Facts
- Heat Risk
- Little Jilliby is likely to experience more frequent and intense heatwaves. This poses a risk to vulnerable populations, such as the elderly and those with chronic health conditions.
- Trend
- increasing
- Suburb
- Little Jilliby, NSW
- Overall Risk
- Medium
- Postcode
- 2259
- Highest high-risk exposure
- 24.7% of land (bushfire)
Heat Risk Analysis
Little Jilliby 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 Little Jilliby 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 degrees Celsius is projected to increase.
Get an address-level heat risk assessment from ClimateNest for Little Jilliby including cooling cost estimates, heatwave vulnerability scoring, and adaptation recommendations tailored to your property.
Little Jilliby (postcode 2259) 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 (24.7% of land in high-risk zones), riverine flood (4.6% of land in high-risk zones), surface flood (3.7% of land in high-risk zones). Exposure is not uniform across Little Jilliby — 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
Prolonged heatwave conditions affected Little Jilliby, with temperatures exceeding 40 degrees Celsius.
Adaptation & Mitigation Actions
Improve Flood Defenses
Near-termInvest in infrastructure to mitigate flood risks, such as improved drainage systems and flood barriers.
Est. cost: Medium
Bushfire Preparedness
ImmediateImplement community education programs and support residents in preparing their properties for bushfires.
Est. cost: Low
Heatwave Action Plan
Near-termDevelop a heatwave action plan to protect vulnerable populations during extreme heat events.
Est. cost: Low
Sustainable Land Use Planning
Long-termIncorporate climate change considerations into land use planning decisions to minimize future risks.
Est. cost: Medium
Council & Emergency Services
Explore Little Jilliby Risk Reports
View other climate risk assessments for Little Jilliby:
Frequently Asked Questions
How hot does Little Jilliby get in summer?
Little Jilliby in New South Wales experiences summer temperatures consistent with the regional climate. BOM publishes historical temperature data for weather stations near Little Jilliby. Get a property-specific heat exposure assessment with projected cooling costs from ClimateNest.
Is extreme heat increasing in Little Jilliby?
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 Little Jilliby 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 Little Jilliby and the performance of your building envelope.
What heat mitigation measures work best in Little Jilliby?
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 Little Jilliby is exposed to high bushfire risk?
ClimateNest's hazard overlay maps 24.7% of Little Jilliby in high-risk zones for bushfire, with a further 66.9% 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 Little Jilliby Safe from Climate Risk?
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