Heat Risk in Grosses Plain, NSW: 2026 Assessment
Heat Risk Score
5.0/10Grosses Plain is likely to experience more frequent and intense heatwaves. This poses a risk to vulnerable populations, including the elderly and those with pre-existing health conditions.
Key Facts
- Heat Risk
- Grosses Plain is likely to experience more frequent and intense heatwaves. This poses a risk to vulnerable populations, including the elderly and those with pre-existing health conditions.
- Trend
- increasing
- Suburb
- Grosses Plain, NSW
- Overall Risk
- Medium
- Postcode
- 2627
- Region
- Regional
- Median property value
- $500,000
- Dominant hazard
- extreme heat (5/10)
- Highest high-risk exposure
- 14.9% of land (surface flood)
Heat Risk Analysis
Grosses Plain 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 Grosses Plain 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.
Monitor weather forecasts and take precautions during heatwaves.
Get an address-level heat risk assessment from ClimateNest for Grosses Plain including cooling cost estimates, heatwave vulnerability scoring, and adaptation recommendations tailored to your property.
Climate projections show heat risk in Grosses Plain 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.
Grosses Plain located in Regional (postcode 2627), 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 Grosses Plain.
Across the six hazard axes ClimateNest models, the dominant climate risk in Grosses Plain 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 Grosses Plain, 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 Grosses Plain are increasingly made with an address-level climate report in hand.
Local Hazard Evidence
Historical Events
A prolonged heatwave resulted in heat stress and health concerns for vulnerable residents.
Adaptation & Mitigation Actions
Develop a Bushfire Survival Plan
ImmediateCreate a detailed plan for evacuating your property in the event of a bushfire, including designated escape routes and emergency contacts.
Est. cost: Low
Improve Home Cooling
Near-termInstall air conditioning or fans to help keep your home cool during heatwaves. Consider energy-efficient options to reduce electricity consumption.
Est. cost: Medium
Upgrade Flood Protection
Near-termInstall flood barriers or raise the foundation of your home to reduce the risk of flood damage.
Est. cost: High
Plant Native Trees
Long-termPlanting native trees can help to reduce the urban heat island effect and provide shade, making the suburb more resilient to heatwaves.
Est. cost: Low
Council & Emergency Services
Explore Grosses Plain Risk Reports
View other climate risk assessments for Grosses Plain:
Frequently Asked Questions
How hot does Grosses Plain get in summer?
Grosses Plain in New South Wales experiences summer temperatures consistent with the regional climate. BOM publishes historical temperature data for weather stations near Grosses Plain. Get a property-specific heat exposure assessment with projected cooling costs from ClimateNest.
Is extreme heat increasing in Grosses Plain?
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 Grosses Plain 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 Grosses Plain and the performance of your building envelope.
What heat mitigation measures work best in Grosses Plain?
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 Grosses Plain?
ClimateNest's suburb model rates Grosses Plain'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 Grosses Plain.
What share of Grosses Plain is exposed to high surface flood risk?
ClimateNest's hazard overlay maps 14.9% of Grosses Plain in high-risk zones for surface flood, with a further 65.5% 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 Grosses Plain Safe from Climate Risk?
Enter your address below for an instant climate risk assessment for Grosses Plain, 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