Heat Risk in Wentworth, NSW: 2026 Assessment
Heat Risk Score
8.5/10Wentworth experiences high temperatures during summer, and climate change is expected to lead to more frequent and intense heatwaves, posing a risk to vulnerable populations.
Key Facts
- Heat Risk
- Wentworth experiences high temperatures during summer, and climate change is expected to lead to more frequent and intense heatwaves, posing a risk to vulnerable populations.
- Trend
- increasing
- Suburb
- Wentworth, NSW
- Overall Risk
- High
- Postcode
- 2648
- Highest high-risk exposure
- 11.8% of land (surface flood)
Heat Risk Analysis
Wentworth 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 Wentworth 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.
Wentworth experiences several heatwave events each year, with temperatures often exceeding 40°C.
Get an address-level heat risk assessment from ClimateNest for Wentworth including cooling cost estimates, heatwave vulnerability scoring, and adaptation recommendations tailored to your property.
Wentworth (postcode 2648) 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 surface flood (11.8% of land in high-risk zones), bushfire (9.4% of land in high-risk zones), riverine flood (6.6% of land in high-risk zones). Exposure is not uniform across Wentworth — 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
Record-breaking heatwave conditions affected Wentworth, with temperatures exceeding 45°C for several consecutive days.
Adaptation & Mitigation Actions
Upgrade flood defenses
ImmediateInvest in levees and other flood control measures to protect properties and infrastructure from riverine flooding.
Est. cost: High
Implement bushfire management strategies
Near-termConduct regular hazard reduction burns and maintain firebreaks to reduce the risk of bushfires.
Est. cost: Medium
Develop a heatwave management plan
ImmediateEstablish cooling centers and provide support to vulnerable populations during heatwave events.
Est. cost: Low
Promote water conservation
Long-termEncourage residents and businesses to adopt water-saving measures to reduce water stress during droughts.
Est. cost: Low
Improve building codes
Near-termUpdate building codes to ensure new constructions are more resilient to climate change impacts, such as flooding and heatwaves.
Est. cost: Medium
Council & Emergency Services
Explore Wentworth Risk Reports
View other climate risk assessments for Wentworth:
Frequently Asked Questions
How hot does Wentworth get in summer?
Wentworth in New South Wales experiences summer temperatures consistent with the regional climate. BOM publishes historical temperature data for weather stations near Wentworth. Get a property-specific heat exposure assessment with projected cooling costs from ClimateNest.
Is extreme heat increasing in Wentworth?
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 Wentworth 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 Wentworth and the performance of your building envelope.
What heat mitigation measures work best in Wentworth?
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 Wentworth is exposed to high surface flood risk?
ClimateNest's hazard overlay maps 11.8% of Wentworth in high-risk zones for surface flood, with a further 58.7% 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 Wentworth Safe from Climate Risk?
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