📮 Yowie Bay postcode: 2228

Heat Risk in Yowie Bay, NSW: 2026 Assessment

Yowie Bay, New South Wales· Sutherland Shire· 2228
Yowie Bay experiences moderate heat risk, with increasing average temperatures and more frequent heatwave events projected. This can impact vulnerable populations and infrastructure.Updated 26 May 2026

Heat Risk Score

5.5/10

Yowie Bay experiences moderate heat risk, with increasing average temperatures and more frequent heatwave events projected. This can impact vulnerable populations and infrastructure.

Key Facts

Heat Risk
Yowie Bay experiences moderate heat risk, with increasing average temperatures and more frequent heatwave events projected. This can impact vulnerable populations and infrastructure.
Trend
increasing
Suburb
Yowie Bay, NSW
Overall Risk
Medium
Postcode
2228
Highest high-risk exposure
16.8% of land (bushfire)

Heat Risk Analysis

Yowie Bay 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 Yowie Bay 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 maximum temperatures in January are increasing, leading to more frequent heat stress events.

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

Yowie Bay (postcode 2228) 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 (16.8% of land in high-risk zones), surface flood (13.3% of land in high-risk zones), riverine flood (8.7% of land in high-risk zones). Exposure is not uniform across Yowie Bay — 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 ContextAverage maximum temperatures in January are increasing, leading to more frequent heat stress events.

Historical Events

2019
Moderate

Prolonged heatwave conditions led to increased heat stress and health concerns in the community.

Adaptation & Mitigation Actions

Improve stormwater drainage

Near-term

Upgrade stormwater drainage infrastructure to reduce the risk of flooding during heavy rainfall events.

Est. cost: Medium

Implement heatwave early warning system

Immediate

Develop and implement a heatwave early warning system to alert vulnerable populations and provide guidance on staying safe during extreme heat events.

Est. cost: Low

Strengthen coastal defenses

Long-term

Invest in coastal protection measures, such as seawalls and beach nourishment, to mitigate the impacts of sea level rise and erosion.

Est. cost: High

Bushfire preparedness programs

Near-term

Implement community education programs to improve bushfire preparedness and promote fire-resistant landscaping.

Est. cost: Low

Promote water conservation

Long-term

Encourage water conservation measures to reduce water demand during droughts and heatwaves.

Est. cost: Low

Council & Emergency Services

Sutherland Shire Council
Emergency Services

Data last updated: 26 May 2026

Explore Yowie Bay Risk Reports

Frequently Asked Questions

How hot does Yowie Bay get in summer?

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

Is extreme heat increasing in Yowie Bay?

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 Yowie Bay 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 Yowie Bay and the performance of your building envelope.

What heat mitigation measures work best in Yowie Bay?

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 Yowie Bay is exposed to high bushfire risk?

ClimateNest's hazard overlay maps 16.8% of Yowie Bay in high-risk zones for bushfire, with a further 71.1% 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 Yowie Bay Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Yowie Bay, 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