Heat Risk in March, NSW: 2026 Assessment
Heat Risk Score
7.0/10March is likely to experience an increase in the frequency and intensity of heatwaves due to climate change. This poses a risk to vulnerable populations, including the elderly and those with pre-existing health conditions.
Key Facts
- Heat Risk
- March is likely to experience an increase in the frequency and intensity of heatwaves due to climate change. This poses a risk to vulnerable populations, including the elderly and those with pre-existing health conditions.
- Trend
- increasing
- Suburb
- March, NSW
- Overall Risk
- Medium
- Postcode
- 2800
- Highest high-risk exposure
- 8.1% of land (riverine flood)
Heat Risk Analysis
March 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 March 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.
Average temperatures are expected to rise, increasing the frequency of heat stress events.
Get an address-level heat risk assessment from ClimateNest for March including cooling cost estimates, heatwave vulnerability scoring, and adaptation recommendations tailored to your property.
March (postcode 2800) 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 riverine flood (8.1% of land in high-risk zones), bushfire (7% of land in high-risk zones), surface flood (6.2% of land in high-risk zones). Exposure is not uniform across March — 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
A prolonged heatwave resulted in increased hospital admissions.
Adaptation & Mitigation Actions
Implement a heatwave management plan
ImmediateDevelop and implement a heatwave management plan to protect vulnerable populations during extreme heat events.
Est. cost: Low
Upgrade stormwater infrastructure
Near-termUpgrade stormwater infrastructure to improve drainage and reduce the risk of flooding.
Est. cost: Medium
Develop a bushfire management plan
Near-termDevelop and implement a bushfire management plan to reduce the risk of bushfires and protect property.
Est. cost: Medium
Promote water conservation
Long-termPromote water conservation measures to reduce water demand and improve water security.
Est. cost: Low
Council & Emergency Services
Explore March Risk Reports
Frequently Asked Questions
How hot does March get in summer?
March in New South Wales experiences summer temperatures consistent with the regional climate. BOM publishes historical temperature data for weather stations near March. Get a property-specific heat exposure assessment with projected cooling costs from ClimateNest.
Is extreme heat increasing in March?
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 March 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 March and the performance of your building envelope.
What heat mitigation measures work best in March?
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 March is exposed to high riverine flood risk?
ClimateNest's hazard overlay maps 8.1% of March in high-risk zones for riverine flood, with a further 78.8% 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 March Safe from Climate Risk?
Enter your address below for an instant climate risk assessment for March, 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