Heat Risk in Holsworthy, NSW: 2026 Assessment
Heat Risk Score
4.0/10Holsworthy experiences moderate heat risk, with increasing average temperatures and more frequent heatwaves projected. This can impact vulnerable populations and infrastructure.
Key Facts
- Heat Risk
- Holsworthy experiences moderate heat risk, with increasing average temperatures and more frequent heatwaves projected. This can impact vulnerable populations and infrastructure.
- Trend
- increasing
- Suburb
- Holsworthy, NSW
- Overall Risk
- Medium
- Postcode
- 2173
- Highest high-risk exposure
- 15% of land (bushfire)
Heat Risk Analysis
Holsworthy 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 Holsworthy 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 suburb experiences several days above 35°C during summer.
Get an address-level heat risk assessment from ClimateNest for Holsworthy including cooling cost estimates, heatwave vulnerability scoring, and adaptation recommendations tailored to your property.
Holsworthy (postcode 2173) 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 (15% of land in high-risk zones), surface flood (7.8% of land in high-risk zones), riverine flood (4.3% of land in high-risk zones). Exposure is not uniform across Holsworthy — 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 impacted vulnerable residents.
Adaptation & Mitigation Actions
Improve Flood Defenses
Near-termUpgrade drainage infrastructure and implement flood barriers to protect properties from flooding.
Est. cost: Medium
Bushfire Mitigation
ImmediateCreate firebreaks, clear vegetation around properties, and develop community bushfire preparedness plans.
Est. cost: Low
Heatwave Preparedness
Near-termEstablish cooling centers, provide heatwave awareness campaigns, and ensure access to water for vulnerable populations.
Est. cost: Low
Sustainable Urban Planning
Long-termIncorporate climate resilience into urban planning and development, including green infrastructure and water-sensitive design.
Est. cost: High
Council & Emergency Services
Explore Holsworthy Risk Reports
View other climate risk assessments for Holsworthy:
Frequently Asked Questions
How hot does Holsworthy get in summer?
Holsworthy in New South Wales experiences summer temperatures consistent with the regional climate. BOM publishes historical temperature data for weather stations near Holsworthy. Get a property-specific heat exposure assessment with projected cooling costs from ClimateNest.
Is extreme heat increasing in Holsworthy?
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 Holsworthy 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 Holsworthy and the performance of your building envelope.
What heat mitigation measures work best in Holsworthy?
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 Holsworthy is exposed to high bushfire risk?
ClimateNest's hazard overlay maps 15% of Holsworthy in high-risk zones for bushfire, with a further 59.5% 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 Holsworthy Safe from Climate Risk?
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