Heat Risk in Goat Island, NSW: 2026 Assessment

Goat Island, New South Wales· UNKNOWN
Goat Island is likely to experience increased heatwave intensity and frequency due to climate change. The island's limited shade and exposure to the harbour can amplify heat effects.Updated 13 Apr 2026

Heat Risk Score

7.0/10

Goat Island is likely to experience increased heatwave intensity and frequency due to climate change. The island's limited shade and exposure to the harbour can amplify heat effects.

Key Facts

Heat Risk
Goat Island is likely to experience increased heatwave intensity and frequency due to climate change. The island's limited shade and exposure to the harbour can amplify heat effects.
Trend
increasing
Suburb
Goat Island, NSW
Overall Risk
Medium
Postcode
2477
Region
Regional
Median property value
$500,000
Dominant hazard
extreme heat (5/10)
Highest high-risk exposure
13.7% of land (bushfire)

Heat Risk Analysis

Goat Island 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 Goat Island 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.

Goat Island experiences high temperatures during summer months, with potential for heat stress events.

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

Climate projections show heat risk in Goat Island is tied to the broader Regional climate. The suburb scores 5 on the 0–10 heat index, with the number of days above 35°C expected to grow through 2050 — a factor that affects cooling costs, garden viability and property desirability.

Goat Island located in Regional (postcode 2477), is a New South Wales suburb tracked by ClimateNest. The suburb's median property value is $500,000, and understanding climate exposure is becoming a standard part of due diligence for buyers, lenders and insurers pricing property in Goat Island.

Across the six hazard axes ClimateNest models, the dominant climate risk in Goat Island is extreme heat (score 5/10), with moderate exposure. Insurance signals for the suburb point to premiums rising moderately (+25% by 2030). These suburb-level signals help prioritise which properties need the closest look — the actual risk of any single home can only be confirmed with an address-level report.

Whether you are buying, selling or renovating in Goat Island, extreme heat is the hazard to weigh first. Local council planning controls, state hazard mapping and lender climate policies each reference this kind of suburb-level signal, and property decisions in Goat Island are increasingly made with an address-level climate report in hand.

Local Hazard Evidence

Avg January Max Temp27 °C
Heat Stress Events/Year3
Urban Heat ContextGoat Island experiences high temperatures during summer months, with potential for heat stress events.

Historical Events

2013
Moderate

A prolonged heatwave resulted in increased heat stress for visitors and staff on Goat Island.

Adaptation & Mitigation Actions

Elevate vulnerable infrastructure

Near-term

Raise critical infrastructure, such as buildings and utilities, above projected flood levels to reduce damage from inundation.

Est. cost: High

Implement coastal protection measures

Near-term

Construct seawalls, breakwaters, or other coastal defenses to protect the island from erosion and storm surge.

Est. cost: Very High

Increase tree canopy cover

Immediate

Plant trees and other vegetation to provide shade and reduce the urban heat island effect.

Est. cost: Medium

Develop a heatwave response plan

Immediate

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

Est. cost: Low

Improve drainage systems

Near-term

Upgrade drainage infrastructure to manage increased rainfall and reduce the risk of localized flooding.

Est. cost: Medium

Council & Emergency Services

City of Sydney Council
Emergency Services

Data last updated: 13 April 2026

Explore Goat Island Risk Reports

Frequently Asked Questions

How hot does Goat Island get in summer?

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

Is extreme heat increasing in Goat Island?

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 Goat Island 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 Goat Island and the performance of your building envelope.

What heat mitigation measures work best in Goat Island?

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 are the main climate risks in Goat Island?

ClimateNest's suburb model rates Goat Island's dominant climate risk as extreme heat at 5/10 on a 0–10 index, followed by damaging wind (4/10) and severe storm (4/10). These are suburb-level averages — an address-level report is needed to confirm the risk of a specific property in Goat Island.

What share of Goat Island is exposed to high bushfire risk?

ClimateNest's hazard overlay maps 13.7% of Goat Island in high-risk zones for bushfire, with a further 71.3% 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 Goat Island Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Goat Island, 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