Heat Risk in Blackett, NSW: 2026 Assessment
Heat Risk Score
7.0/10Blackett is likely to experience more frequent and intense heatwaves. This poses a significant risk to vulnerable populations, such as the elderly and those with chronic health conditions.
Key Facts
- Heat Risk
- Blackett is likely to experience more frequent and intense heatwaves. This poses a significant risk to vulnerable populations, such as the elderly and those with chronic health conditions.
- Trend
- increasing
- Suburb
- Blackett, NSW
- Overall Risk
- Medium
- Postcode
- 2770
- Region
- Greater Sydney
- Median property value
- $1.6 million
- Dominant hazard
- extreme heat (5/10)
- Highest high-risk exposure
- 14.4% of land (surface flood)
Heat Risk Analysis
Blackett 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 Blackett 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 heat island effect contributes to higher temperatures in Blackett compared to surrounding areas. Planting trees and using cool pavements can help mitigate this effect.
Get an address-level heat risk assessment from ClimateNest for Blackett including cooling cost estimates, heatwave vulnerability scoring, and adaptation recommendations tailored to your property.
Climate projections show heat risk in Blackett is tied to the broader Greater Sydney climate. The suburb scores 5 on the 0–10 heat index, with the number of days above 35°C expected to grow through 2050 — a factor that affects cooling costs, garden viability and property desirability.
Blackett located in Greater Sydney (postcode 2770), is a New South Wales suburb tracked by ClimateNest. The suburb's median property value is $1.6 million, and understanding climate exposure is becoming a standard part of due diligence for buyers, lenders and insurers pricing property in Blackett.
Across the six hazard axes ClimateNest models, the dominant climate risk in Blackett is extreme heat (score 5/10), with moderate exposure. Insurance signals for the suburb point to premiums rising moderately (+20% by 2030). These suburb-level signals help prioritise which properties need the closest look — the actual risk of any single home can only be confirmed with an address-level report.
Whether you are buying, selling or renovating in Blackett, extreme heat is the hazard to weigh first. Local council planning controls, state hazard mapping and lender climate policies each reference this kind of suburb-level signal, and property decisions in Blackett are increasingly made with an address-level climate report in hand.
Local Hazard Evidence
Historical Events
A prolonged heatwave affected the Sydney region, including Blackett, leading to increased hospital admissions and strain on infrastructure.
Adaptation & Mitigation Actions
Improve Drainage Infrastructure
ImmediateUpgrade and expand drainage systems to handle increased rainfall intensity and reduce the risk of flooding.
Est. cost: High
Implement Heatwave Early Warning System
Near-termDevelop and implement a heatwave early warning system to alert residents of impending heatwaves and provide guidance on how to stay safe.
Est. cost: Medium
Increase Tree Canopy Cover
Near-termPlant more trees throughout Blackett to provide shade and reduce the urban heat island effect.
Est. cost: Medium
Community Education Programs
Long-termConduct community education programs to raise awareness of climate change risks and promote preparedness measures.
Est. cost: Low
Bushfire Preparedness
Near-termProvide resources and support for residents in bushfire-prone areas to prepare their properties and develop bushfire survival plans.
Est. cost: Low
Council & Emergency Services
Explore Blackett Risk Reports
View other climate risk assessments for Blackett:
Frequently Asked Questions
How hot does Blackett get in summer?
Blackett in New South Wales experiences summer temperatures consistent with the regional climate. BOM publishes historical temperature data for weather stations near Blackett. Get a property-specific heat exposure assessment with projected cooling costs from ClimateNest.
Is extreme heat increasing in Blackett?
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 Blackett 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 Blackett and the performance of your building envelope.
What heat mitigation measures work best in Blackett?
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 are the main climate risks in Blackett?
ClimateNest's suburb model rates Blackett's dominant climate risk as extreme heat at 5/10 on a 0–10 index, followed by damaging wind (4/10) and severe storm (4/10). These are suburb-level averages — an address-level report is needed to confirm the risk of a specific property in Blackett.
What share of Blackett is exposed to high surface flood risk?
ClimateNest's hazard overlay maps 14.4% of Blackett in high-risk zones for surface flood, with a further 66.9% 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 Blackett Safe from Climate Risk?
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*Industry sources: ICA, APRA, RBA
Full report from A$69 · Australian addresses only · 8 hazard scores · Insurance trajectory · 2030 & 2050 projections