Heat Risk in Blakehurst, NSW: 2026 Assessment
Heat Risk Score
7.0/10Blakehurst experiences a high risk of heatwaves, particularly during the summer months. Urban areas retain heat, leading to higher temperatures.
Key Facts
- Heat Risk
- Blakehurst experiences a high risk of heatwaves, particularly during the summer months. Urban areas retain heat, leading to higher temperatures.
- Trend
- increasing
- Suburb
- Blakehurst, NSW
- Overall Risk
- Medium
- Postcode
- 2221
- Region
- Greater Sydney
- Median property value
- $1.6 million
- Dominant hazard
- extreme heat (5/10)
- Highest high-risk exposure
- 9.6% of land (bushfire)
Heat Risk Analysis
Blakehurst 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 Blakehurst 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.
Urban areas experience higher temperatures due to the urban heat island effect.
Get an address-level heat risk assessment from ClimateNest for Blakehurst including cooling cost estimates, heatwave vulnerability scoring, and adaptation recommendations tailored to your property.
Climate projections show heat risk in Blakehurst 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.
Blakehurst located in Greater Sydney (postcode 2221), 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 Blakehurst.
Across the six hazard axes ClimateNest models, the dominant climate risk in Blakehurst 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 Blakehurst, 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 Blakehurst are increasingly made with an address-level climate report in hand.
Local Hazard Evidence
Historical Events
Prolonged heatwave conditions led to increased heat stress and health concerns.
Adaptation & Mitigation Actions
Improve Drainage Infrastructure
Near-termUpgrade drainage systems to handle increased rainfall intensity and reduce flood risk.
Est. cost: Medium
Implement Bushfire Protection Measures
Near-termMaintain firebreaks, clear vegetation, and develop evacuation plans in bushfire prone areas.
Est. cost: Low
Mitigate Urban Heat Island Effect
Long-termIncrease green spaces, plant trees, and use reflective building materials to reduce urban temperatures.
Est. cost: Medium
Strengthen Coastal Defenses
Long-termConstruct seawalls, restore mangroves, and implement erosion control measures to protect against coastal hazards.
Est. cost: High
Community Awareness Programs
ImmediateEducate residents about climate risks and adaptation strategies through workshops and information campaigns.
Est. cost: Low
Council & Emergency Services
Explore Blakehurst Risk Reports
View other climate risk assessments for Blakehurst:
Frequently Asked Questions
How hot does Blakehurst get in summer?
Blakehurst in New South Wales experiences summer temperatures consistent with the regional climate. BOM publishes historical temperature data for weather stations near Blakehurst. Get a property-specific heat exposure assessment with projected cooling costs from ClimateNest.
Is extreme heat increasing in Blakehurst?
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 Blakehurst 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 Blakehurst and the performance of your building envelope.
What heat mitigation measures work best in Blakehurst?
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 Blakehurst?
ClimateNest's suburb model rates Blakehurst'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 Blakehurst.
What share of Blakehurst is exposed to high bushfire risk?
ClimateNest's hazard overlay maps 9.6% of Blakehurst in high-risk zones for bushfire, with a further 63.8% 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 Blakehurst Safe from Climate Risk?
Enter your address below for an instant climate risk assessment for Blakehurst, New South Wales, covering flood, bushfire, sea level rise and more.
What A$69 could save you from
*Industry sources: ICA, APRA, RBA
Full report from A$69 · Australian addresses only · 8 hazard scores · Insurance trajectory · 2030 & 2050 projections