Heat Risk in Roseberry, NSW: 2026 Assessment
Heat Risk Score
7.0/10Roseberry is susceptible to heatwaves, with increasing average temperatures posing a significant risk to vulnerable populations. Urban heat island effect exacerbates the problem.
Key Facts
- Heat Risk
- Roseberry is susceptible to heatwaves, with increasing average temperatures posing a significant risk to vulnerable populations. Urban heat island effect exacerbates the problem.
- Trend
- increasing
- Suburb
- Roseberry, NSW
- Overall Risk
- Medium
- Postcode
- 2474
- Highest high-risk exposure
- 13.9% of land (bushfire)
Heat Risk Analysis
Roseberry 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 Roseberry 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 suburb experiences several days above 35°C each summer.
Get an address-level heat risk assessment from ClimateNest for Roseberry including cooling cost estimates, heatwave vulnerability scoring, and adaptation recommendations tailored to your property.
Roseberry (postcode 2474) is tracked in ClimateNest's suburb hazard model, which maps the share of the suburb's land exposed to each hazard at high and moderate levels. The suburb's highest high-risk exposures are bushfire (13.9% of land in high-risk zones), surface flood (7.8% of land in high-risk zones), riverine flood (6% of land in high-risk zones). Exposure is not uniform across Roseberry — individual properties can sit well above or below these averages, so an address-level check is recommended before buying, selling or insuring.
Local Hazard Evidence
Historical Events
Record-breaking temperatures during the 2019 heatwave put significant strain on infrastructure and public health services.
Prolonged heatwave conditions resulted in increased hospital admissions.
Adaptation & Mitigation Actions
Improve stormwater drainage
Near-termUpgrade stormwater infrastructure to handle increased rainfall intensity and reduce the risk of flash flooding.
Est. cost: Medium
Implement urban greening
ImmediateIncrease tree canopy cover and green spaces to reduce the urban heat island effect and provide shade during heatwaves.
Est. cost: Medium
Develop a heatwave response plan
ImmediateCreate a community-based plan to support vulnerable residents during heatwaves, including cooling centers and outreach programs.
Est. cost: Low
Strengthen building codes
Near-termUpdate building codes to require new buildings to be more resilient to heatwaves and flooding.
Est. cost: Medium
Educate residents on climate risks
Long-termProvide information and resources to help residents understand and prepare for climate change impacts.
Est. cost: Low
Council & Emergency Services
Explore Roseberry Risk Reports
View other climate risk assessments for Roseberry:
Frequently Asked Questions
How hot does Roseberry get in summer?
Roseberry in New South Wales experiences summer temperatures consistent with the regional climate. BOM publishes historical temperature data for weather stations near Roseberry. Get a property-specific heat exposure assessment with projected cooling costs from ClimateNest.
Is extreme heat increasing in Roseberry?
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 Roseberry 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 Roseberry and the performance of your building envelope.
What heat mitigation measures work best in Roseberry?
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 share of Roseberry is exposed to high bushfire risk?
ClimateNest's hazard overlay maps 13.9% of Roseberry in high-risk zones for bushfire, with a further 71.3% 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 Roseberry Safe from Climate Risk?
Enter your address below for an instant climate risk assessment for Roseberry, 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