Heat Risk in Ilarwill, NSW: 2026 Assessment
Heat Risk Score
5.0/10Ilarwill is likely to experience heatwaves, especially during summer. Vulnerable populations are at higher risk.
Key Facts
- Heat Risk
- Ilarwill is likely to experience heatwaves, especially during summer. Vulnerable populations are at higher risk.
- Trend
- increasing
- Suburb
- Ilarwill, NSW
- Overall Risk
- Medium
- Postcode
- 2463
- Highest high-risk exposure
- 20.4% of land (bushfire)
Heat Risk Analysis
Ilarwill 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 Ilarwill 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.
Data from nearby weather stations.
Get an address-level heat risk assessment from ClimateNest for Ilarwill including cooling cost estimates, heatwave vulnerability scoring, and adaptation recommendations tailored to your property.
Ilarwill (postcode 2463) 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 (20.4% of land in high-risk zones), riverine flood (6.1% of land in high-risk zones), surface flood (5.1% of land in high-risk zones). Exposure is not uniform across Ilarwill — 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 affected Ilarwill, with temperatures exceeding 40 degrees Celsius for several days.
Adaptation & Mitigation Actions
Improve Bushfire Preparedness
ImmediateClear vegetation around properties, develop a bushfire survival plan, and ensure adequate insurance coverage.
Est. cost: Low
Enhance Heatwave Resilience
Near-termInstall air conditioning or fans, stay hydrated, and check on vulnerable neighbors during heatwaves.
Est. cost: Low to Medium
Upgrade Flood Defenses
Long-termInstall flood barriers, improve drainage systems, and relocate valuable items to higher ground.
Est. cost: Medium to High
Promote Water Conservation
Near-termImplement water-saving measures in homes and businesses to reduce strain on water resources during droughts.
Est. cost: Low
Council & Emergency Services
Explore Ilarwill Risk Reports
View other climate risk assessments for Ilarwill:
Frequently Asked Questions
How hot does Ilarwill get in summer?
Ilarwill in New South Wales experiences summer temperatures consistent with the regional climate. BOM publishes historical temperature data for weather stations near Ilarwill. Get a property-specific heat exposure assessment with projected cooling costs from ClimateNest.
Is extreme heat increasing in Ilarwill?
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 Ilarwill 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 Ilarwill and the performance of your building envelope.
What heat mitigation measures work best in Ilarwill?
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 Ilarwill is exposed to high bushfire risk?
ClimateNest's hazard overlay maps 20.4% of Ilarwill in high-risk zones for bushfire, with a further 60.4% 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 Ilarwill Safe from Climate Risk?
Enter your address below for an instant climate risk assessment for Ilarwill, New South Wales, 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