Heat Risk in Narraweena, NSW: 2026 Assessment
Heat Risk Score
5.5/10Narraweena experiences moderate heat risk, with increasing average temperatures and more frequent heatwaves projected. This can impact vulnerable populations.
Key Facts
- Heat Risk
- Narraweena experiences moderate heat risk, with increasing average temperatures and more frequent heatwaves projected. This can impact vulnerable populations.
- Trend
- increasing
- Suburb
- Narraweena, NSW
- Overall Risk
- Medium
- Postcode
- 2099
- Highest high-risk exposure
- 17.7% of land (bushfire)
Heat Risk Analysis
Narraweena 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 Narraweena 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 number of days exceeding 30 degrees Celsius is projected to increase.
Get an address-level heat risk assessment from ClimateNest for Narraweena including cooling cost estimates, heatwave vulnerability scoring, and adaptation recommendations tailored to your property.
Narraweena (postcode 2099) 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 (17.7% of land in high-risk zones), surface flood (7.3% of land in high-risk zones), riverine flood (6.3% of land in high-risk zones). Exposure is not uniform across Narraweena — 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 impacted vulnerable residents in Narraweena.
Adaptation & Mitigation Actions
Improve Flood Defenses
Near-termUpgrade drainage systems and build flood barriers to protect properties from flooding.
Est. cost: Medium
Bushfire Management
Near-termImplement bushfire management strategies, including vegetation clearing and community education programs.
Est. cost: Medium
Heatwave Preparedness
ImmediateDevelop a heatwave preparedness plan and provide cooling centers for vulnerable residents.
Est. cost: Low
Coastal Protection
Long-termImplement coastal protection measures, such as seawalls and beach nourishment, to mitigate the impacts of sea level rise.
Est. cost: High
Community Awareness Programs
Near-termEducate residents about climate risks and adaptation measures through community workshops and online resources.
Est. cost: Low
Council & Emergency Services
Explore Narraweena Risk Reports
View other climate risk assessments for Narraweena:
Frequently Asked Questions
How hot does Narraweena get in summer?
Narraweena in New South Wales experiences summer temperatures consistent with the regional climate. BOM publishes historical temperature data for weather stations near Narraweena. Get a property-specific heat exposure assessment with projected cooling costs from ClimateNest.
Is extreme heat increasing in Narraweena?
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 Narraweena 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 Narraweena and the performance of your building envelope.
What heat mitigation measures work best in Narraweena?
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 Narraweena is exposed to high bushfire risk?
ClimateNest's hazard overlay maps 17.7% of Narraweena in high-risk zones for bushfire, with a further 65.4% 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 Narraweena Safe from Climate Risk?
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