Heat Risk in Crestwood, NSW: 2026 Assessment
Heat Risk Score
7.0/10Crestwood experiences a high heat risk, with increasing average temperatures and more frequent heatwave events expected in the future. This poses a threat to vulnerable populations.
Key Facts
- Heat Risk
- Crestwood experiences a high heat risk, with increasing average temperatures and more frequent heatwave events expected in the future. This poses a threat to vulnerable populations.
- Trend
- increasing
- Suburb
- Crestwood, NSW
- Overall Risk
- Medium
- Postcode
- 2620
- Region
- Regional NSW
- Median property value
- $550,000
- Dominant hazard
- extreme heat (6/10)
- Highest high-risk exposure
- 22.3% of land (bushfire)
Heat Risk Analysis
Crestwood 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 Crestwood 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 average maximum temperature in January is 31.5°C, and the suburb experiences approximately 5 heat stress events per year. These events are expected to become more frequent and intense in the future.
Get an address-level heat risk assessment from ClimateNest for Crestwood including cooling cost estimates, heatwave vulnerability scoring, and adaptation recommendations tailored to your property.
Climate projections show heat risk in Crestwood is tied to the broader Regional NSW climate. The suburb scores 6 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.
Crestwood located in Regional NSW (postcode 2620), is a New South Wales suburb tracked by ClimateNest. The suburb's median property value is $550,000, and understanding climate exposure is becoming a standard part of due diligence for buyers, lenders and insurers pricing property in Crestwood.
Across the six hazard axes ClimateNest models, the dominant climate risk in Crestwood is extreme heat (score 6/10), with moderate exposure. Insurance signals for the suburb point to premiums rising moderately (+25% 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 Crestwood, 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 Crestwood are increasingly made with an address-level climate report in hand.
Local Hazard Evidence
Historical Events
Record breaking temperatures across NSW. Many people were affected by heatstroke and dehydration.
A prolonged heatwave affected the Sydney region, including Crestwood, with temperatures exceeding 40°C for several days.
Adaptation & Mitigation Actions
Improve Drainage Infrastructure
Near-termUpgrade and maintain drainage infrastructure to reduce the risk of flooding during heavy rainfall events.
Est. cost: Medium
Implement Heatwave Management Plan
ImmediateDevelop and implement a heatwave management plan to protect vulnerable populations during extreme heat events.
Est. cost: Low
Increase Green Spaces
Long-termIncrease the amount of green space in the suburb to reduce the urban heat island effect and provide shade and cooling.
Est. cost: High
Community Awareness Programs
Near-termRun community awareness programs to educate residents about climate risks and how to prepare for extreme weather events.
Est. cost: Low
Bushfire Preparedness
Near-termEnsure residents are aware of bushfire risks and have a bushfire survival plan in place.
Est. cost: Low
Council & Emergency Services
Explore Crestwood Risk Reports
View other climate risk assessments for Crestwood:
Frequently Asked Questions
How hot does Crestwood get in summer?
Crestwood in New South Wales experiences summer temperatures consistent with the regional climate. BOM publishes historical temperature data for weather stations near Crestwood. Get a property-specific heat exposure assessment with projected cooling costs from ClimateNest.
Is extreme heat increasing in Crestwood?
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 Crestwood 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 Crestwood and the performance of your building envelope.
What heat mitigation measures work best in Crestwood?
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 Crestwood?
ClimateNest's suburb model rates Crestwood's dominant climate risk as extreme heat at 6/10 on a 0–10 index, followed by bushfire (5/10) and damaging wind (4/10). These are suburb-level averages — an address-level report is needed to confirm the risk of a specific property in Crestwood.
What share of Crestwood is exposed to high bushfire risk?
ClimateNest's hazard overlay maps 22.3% of Crestwood in high-risk zones for bushfire, with a further 71.4% 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 Crestwood Safe from Climate Risk?
Enter your address below for an instant climate risk assessment for Crestwood, New South Wales, covering flood, bushfire, sea level rise and more.
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Full report from A$69 · Australian addresses only · 8 hazard scores · Insurance trajectory · 2030 & 2050 projections