Heat Risk in Narwee, NSW: 2026 Assessment
Heat Risk Score
7.0/10Narwee is susceptible to heatwaves, with increasing average temperatures posing a significant risk to vulnerable populations. Urban heat island effect exacerbates the problem.
Key Facts
- Heat Risk
- Narwee is susceptible to heatwaves, with increasing average temperatures posing a significant risk to vulnerable populations. Urban heat island effect exacerbates the problem.
- Trend
- increasing
- Suburb
- Narwee, NSW
- Overall Risk
- Medium
- Postcode
- 2209
- Highest high-risk exposure
- 18.2% of land (bushfire)
Heat Risk Analysis
Narwee 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 Narwee 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 urban environment contributes to higher temperatures compared to surrounding areas.
Get an address-level heat risk assessment from ClimateNest for Narwee including cooling cost estimates, heatwave vulnerability scoring, and adaptation recommendations tailored to your property.
Narwee (postcode 2209) 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 (18.2% of land in high-risk zones), riverine flood (11.7% of land in high-risk zones), surface flood (7.9% of land in high-risk zones). Exposure is not uniform across Narwee — 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 resulted in 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: High
Implement Urban Greening Initiatives
Near-termIncrease tree canopy cover and create green spaces to reduce the urban heat island effect and provide shade.
Est. cost: Medium
Develop a Heatwave Management Plan
ImmediateEstablish a plan to protect vulnerable populations during heatwaves, including cooling centers and community outreach programs.
Est. cost: Low
Raise Community Awareness
Near-termEducate residents about climate risks and preparedness measures, including flood safety and heatwave precautions.
Est. cost: Low
Council & Emergency Services
Explore Narwee Risk Reports
View other climate risk assessments for Narwee:
Frequently Asked Questions
How hot does Narwee get in summer?
Narwee in New South Wales experiences summer temperatures consistent with the regional climate. BOM publishes historical temperature data for weather stations near Narwee. Get a property-specific heat exposure assessment with projected cooling costs from ClimateNest.
Is extreme heat increasing in Narwee?
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 Narwee 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 Narwee and the performance of your building envelope.
What heat mitigation measures work best in Narwee?
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 Narwee is exposed to high bushfire risk?
ClimateNest's hazard overlay maps 18.2% of Narwee in high-risk zones for bushfire, with a further 67.5% 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 Narwee Safe from Climate Risk?
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