Heat Risk in Muttama, NSW: 2026 Assessment
Heat Risk Score
7.0/10Muttama is likely to experience more frequent and intense heatwaves. Higher average temperatures can pose health risks, especially for vulnerable populations.
Key Facts
- Heat Risk
- Muttama is likely to experience more frequent and intense heatwaves. Higher average temperatures can pose health risks, especially for vulnerable populations.
- Trend
- increasing
- Suburb
- Muttama, NSW
- Overall Risk
- Medium
- Postcode
- 2722
- Highest high-risk exposure
- 19.1% of land (bushfire)
Heat Risk Analysis
Muttama 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 Muttama 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.
Heatwaves are becoming more frequent and intense in the region.
Get an address-level heat risk assessment from ClimateNest for Muttama including cooling cost estimates, heatwave vulnerability scoring, and adaptation recommendations tailored to your property.
Muttama (postcode 2722) 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 (19.1% of land in high-risk zones), riverine flood (14% of land in high-risk zones), surface flood (8.7% of land in high-risk zones). Exposure is not uniform across Muttama — 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 were recorded during a prolonged heatwave, causing heat stress and health concerns.
Adaptation & Mitigation Actions
Improve Drainage Infrastructure
Near-termUpgrade and expand drainage systems to handle increased rainfall and reduce flood risk.
Est. cost: Medium
Develop a Heat Action Plan
ImmediateImplement a plan to protect vulnerable residents during heatwaves, including cooling centers and public awareness campaigns.
Est. cost: Low
Bushfire Mitigation Measures
Near-termImplement measures to reduce bushfire risk, such as clearing vegetation around properties and creating firebreaks.
Est. cost: Low
Community Education Programs
Long-termConduct community education programs to raise awareness about climate risks and adaptation strategies.
Est. cost: Low
Council & Emergency Services
Explore Muttama Risk Reports
View other climate risk assessments for Muttama:
Frequently Asked Questions
How hot does Muttama get in summer?
Muttama in New South Wales experiences summer temperatures consistent with the regional climate. BOM publishes historical temperature data for weather stations near Muttama. Get a property-specific heat exposure assessment with projected cooling costs from ClimateNest.
Is extreme heat increasing in Muttama?
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 Muttama 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 Muttama and the performance of your building envelope.
What heat mitigation measures work best in Muttama?
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 Muttama is exposed to high bushfire risk?
ClimateNest's hazard overlay maps 19.1% of Muttama in high-risk zones for bushfire, with a further 71.9% 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 Muttama Safe from Climate Risk?
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