Heat Risk in Parraweena, NSW: 2026 Assessment
Heat Risk Score
4.5/10Parraweena experiences moderate heat risk, with increasing average temperatures and more frequent heatwaves expected in the future.
Key Facts
- Heat Risk
- Parraweena experiences moderate heat risk, with increasing average temperatures and more frequent heatwaves expected in the future.
- Trend
- increasing
- Suburb
- Parraweena, NSW
- Overall Risk
- Medium
- Postcode
- 2339
- Highest high-risk exposure
- 20.2% of land (bushfire)
Heat Risk Analysis
Parraweena 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 Parraweena 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.
Average January maximum temperatures are expected to increase in the coming decades.
Get an address-level heat risk assessment from ClimateNest for Parraweena including cooling cost estimates, heatwave vulnerability scoring, and adaptation recommendations tailored to your property.
Parraweena (postcode 2339) 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 (20.2% of land in high-risk zones), surface flood (11.2% of land in high-risk zones), riverine flood (10.8% of land in high-risk zones). Exposure is not uniform across Parraweena — 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 led to increased hospital admissions and strain on infrastructure.
Adaptation & Mitigation Actions
Improve drainage infrastructure
Near-termUpgrade drainage systems to handle increased rainfall intensity and reduce the risk of flash flooding.
Est. cost: Medium
Bushfire preparedness
ImmediateImplement bushfire mitigation measures, such as vegetation management and community education programs.
Est. cost: Low
Heatwave action plan
Near-termDevelop a heatwave action plan to protect vulnerable populations during extreme heat events.
Est. cost: Low
Coastal protection measures
Long-termImplement coastal protection measures to mitigate the impacts of sea level rise and storm surges.
Est. cost: High
Community awareness programs
Near-termEducate residents about climate risks and adaptation strategies.
Est. cost: Low
Council & Emergency Services
Explore Parraweena Risk Reports
View other climate risk assessments for Parraweena:
Frequently Asked Questions
How hot does Parraweena get in summer?
Parraweena in New South Wales experiences summer temperatures consistent with the regional climate. BOM publishes historical temperature data for weather stations near Parraweena. Get a property-specific heat exposure assessment with projected cooling costs from ClimateNest.
Is extreme heat increasing in Parraweena?
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 Parraweena 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 Parraweena and the performance of your building envelope.
What heat mitigation measures work best in Parraweena?
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 Parraweena is exposed to high bushfire risk?
ClimateNest's hazard overlay maps 20.2% of Parraweena in high-risk zones for bushfire, with a further 69% 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 Parraweena Safe from Climate Risk?
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