Heat Risk in Granville, NSW: 2026 Assessment
Heat Risk Score
6.0/10Granville is likely to experience more frequent and intense heatwaves due to climate change. This poses a risk to vulnerable populations, such as the elderly and those with chronic health conditions.
Key Facts
- Heat Risk
- Granville is likely to experience more frequent and intense heatwaves due to climate change. This poses a risk to vulnerable populations, such as the elderly and those with chronic health conditions.
- Trend
- increasing
- Suburb
- Granville, NSW
- Overall Risk
- Medium
- Postcode
- 1783
- Region
- Regional
- Median property value
- $500,000
- Dominant hazard
- extreme heat (5/10)
- Highest high-risk exposure
- 18% of land (bushfire)
Heat Risk Analysis
Granville 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 Granville 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 can make Granville significantly hotter than surrounding areas during heatwaves.
Get an address-level heat risk assessment from ClimateNest for Granville including cooling cost estimates, heatwave vulnerability scoring, and adaptation recommendations tailored to your property.
Climate projections show heat risk in Granville is tied to the broader Regional 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.
Granville located in Regional (postcode 1783), is a New South Wales suburb tracked by ClimateNest. The suburb's median property value is $500,000, and understanding climate exposure is becoming a standard part of due diligence for buyers, lenders and insurers pricing property in Granville.
Across the six hazard axes ClimateNest models, the dominant climate risk in Granville is extreme heat (score 5/10), 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 Granville, 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 Granville are increasingly made with an address-level climate report in hand.
Local Hazard Evidence
Historical Events
A prolonged heatwave resulted in increased hospital admissions and strain on infrastructure.
Adaptation & Mitigation Actions
Improve Flood Defenses
Near-termInvest in infrastructure improvements to mitigate flood risk, such as levees, drainage upgrades, and flood-proofing of buildings.
Est. cost: High
Develop a Heat Action Plan
ImmediateImplement a heat action plan to protect vulnerable populations during heatwaves, including cooling centers and public awareness campaigns.
Est. cost: Medium
Enhance Bushfire Preparedness
Long-termPromote bushfire awareness and preparedness among residents, including clearing vegetation around homes and developing evacuation plans.
Est. cost: Low
Promote Water Conservation
Near-termEncourage water conservation measures to reduce the strain on water resources during droughts and heatwaves.
Est. cost: Low
Council & Emergency Services
Explore Granville Risk Reports
View other climate risk assessments for Granville:
Frequently Asked Questions
How hot does Granville get in summer?
Granville in New South Wales experiences summer temperatures consistent with the regional climate. BOM publishes historical temperature data for weather stations near Granville. Get a property-specific heat exposure assessment with projected cooling costs from ClimateNest.
Is extreme heat increasing in Granville?
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 Granville 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 Granville and the performance of your building envelope.
What heat mitigation measures work best in Granville?
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 Granville?
ClimateNest's suburb model rates Granville'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 Granville.
What share of Granville is exposed to high bushfire risk?
ClimateNest's hazard overlay maps 18% of Granville in high-risk zones for bushfire, with a further 65.2% 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 Granville Safe from Climate Risk?
Enter your address below for an instant climate risk assessment for Granville, New South Wales, covering flood, bushfire, sea level rise and more.
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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