Heat Risk in Fernhill, VIC: 2026 Assessment

Fernhill, Victoria· Wollongong
Fernhill experiences moderate heat risk, with increasing average temperatures and more frequent heatwaves projected.Updated 30 May 2026

Heat Risk Score

6.5/10

Fernhill experiences moderate heat risk, with increasing average temperatures and more frequent heatwaves projected.

Key Facts

Heat Risk
Fernhill experiences moderate heat risk, with increasing average temperatures and more frequent heatwaves projected.
Trend
increasing
Suburb
Fernhill, VIC
Overall Risk
High
Postcode
3418
Highest high-risk exposure
17.7% of land (bushfire)

Heat Risk Analysis

Fernhill in Victoria 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 Fernhill 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 average maximum temperature in January is increasing, leading to more frequent heat stress events.

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

Fernhill (postcode 3418) 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 (17.7% of land in high-risk zones), riverine flood (8.8% of land in high-risk zones), surface flood (8% of land in high-risk zones). Exposure is not uniform across Fernhill — 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 Temp27.5 °C
Heat Stress Events/Year3
Urban Heat ContextThe average maximum temperature in January is increasing, leading to more frequent heat stress events.

Adaptation & Mitigation Actions

Develop a Bushfire Management Plan

Immediate

Create a comprehensive bushfire management plan for your property, including clearing vegetation, maintaining firebreaks, and having an evacuation plan.

Est. cost: Low

Improve Home Insulation

Near-term

Improve home insulation to reduce heat stress during heatwaves and lower energy consumption for cooling.

Est. cost: Medium

Install Rainwater Tanks

Near-term

Install rainwater tanks to capture and store rainwater for non-potable uses, reducing reliance on mains water during droughts and heavy rainfall events.

Est. cost: Medium

Support Coastal Protection Measures

Long-term

Support local government initiatives to protect coastal areas from erosion and sea level rise, such as beach nourishment and seawall construction.

Est. cost: High

Participate in Community Education Programs

Near-term

Engage in community education programs to learn about climate risks and adaptation strategies, and to build community resilience.

Est. cost: Low

Council & Emergency Services

Wollongong City Council
Emergency Services

Data last updated: 30 May 2026

Explore Fernhill Risk Reports

Frequently Asked Questions

How hot does Fernhill get in summer?

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

Is extreme heat increasing in Fernhill?

Australia-wide, extreme heat events have become more frequent since the mid-20th century, and this trend is consistent with CSIRO climate projections for Victoria. Continued warming is likely through 2050 under all emissions scenarios.

How does heat affect energy costs for Fernhill 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 Fernhill and the performance of your building envelope.

What heat mitigation measures work best in Fernhill?

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 Fernhill is exposed to high bushfire risk?

ClimateNest's hazard overlay maps 17.7% of Fernhill in high-risk zones for bushfire, with a further 61.5% 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 Fernhill Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Fernhill, Victoria, 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