📮 Maclean postcode: 2463

Heat Risk in Maclean, NSW: 2026 Assessment

Maclean, New South Wales· Clarence Valley· 2463
Maclean experiences hot summers, and climate change is projected to increase the frequency and intensity of heatwaves, posing a risk to vulnerable populations.Updated 7 Mar 2026

Heat Risk Score

6.0/10

Maclean experiences hot summers, and climate change is projected to increase the frequency and intensity of heatwaves, posing a risk to vulnerable populations.

Key Facts

Heat Risk
Maclean experiences hot summers, and climate change is projected to increase the frequency and intensity of heatwaves, posing a risk to vulnerable populations.
Trend
increasing
Suburb
Maclean, NSW
Overall Risk
Medium
Postcode
2463
Highest high-risk exposure
15.4% of land (bushfire)

Heat Risk Analysis

Maclean 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 Maclean 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.

Maclean experiences hot summers with average maximum temperatures exceeding 30 degrees Celsius in January. Heatwaves can pose a risk to vulnerable populations.

Get an address-level heat risk assessment from ClimateNest for Maclean including cooling cost estimates, heatwave vulnerability scoring, and adaptation recommendations tailored to your property.

Maclean (postcode 2463) 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 (15.4% of land in high-risk zones), riverine flood (5.2% of land in high-risk zones), extreme wind (4.1% of land in high-risk zones). Exposure is not uniform across Maclean — 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

Avg January Max Temp31.5 °C
Heat Stress Events/Year3
Urban Heat ContextMaclean experiences hot summers with average maximum temperatures exceeding 30 degrees Celsius in January. Heatwaves can pose a risk to vulnerable populations.

Adaptation & Mitigation Actions

Improve Flood Defenses

Near-term

Invest in infrastructure to protect against flooding, such as levees and drainage systems.

Est. cost: High

Enhance Bushfire Preparedness

Near-term

Implement bushfire mitigation measures, such as hazard reduction burns and community education programs.

Est. cost: Medium

Develop Heatwave Response Plan

Immediate

Create a plan to protect vulnerable populations during heatwaves, including cooling centers and public awareness campaigns.

Est. cost: Low

Plan for Sea Level Rise

Long-term

Assess the potential impacts of sea level rise on Maclean and develop strategies to adapt to these changes.

Est. cost: Medium

Upgrade Building Codes

Near-term

Incorporate climate resilience measures into building codes to ensure new construction is better prepared for extreme weather events.

Est. cost: Medium

Council & Emergency Services

Clarence Valley Council
Emergency Services

Data last updated: 7 March 2026

Explore Maclean Risk Reports

Frequently Asked Questions

How hot does Maclean get in summer?

Maclean in New South Wales experiences summer temperatures consistent with the regional climate. BOM publishes historical temperature data for weather stations near Maclean. Get a property-specific heat exposure assessment with projected cooling costs from ClimateNest.

Is extreme heat increasing in Maclean?

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 Maclean 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 Maclean and the performance of your building envelope.

What heat mitigation measures work best in Maclean?

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 Maclean is exposed to high bushfire risk?

ClimateNest's hazard overlay maps 15.4% of Maclean in high-risk zones for bushfire, with a further 59.5% 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 Maclean Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Maclean, New South Wales, covering flood, bushfire, sea level rise and more.

Free instant previewCSIRO-powered data

What A$69 could save you from

$7.2B
2022 insured disaster losses*
$300B+
climate risk to property by 2050*
30-120%
insurance premium increases in high-risk areas*

*Industry sources: ICA, APRA, RBA

Full report from A$69 · Australian addresses only · 8 hazard scores · Insurance trajectory · 2030 & 2050 projections