Climate Risk: Kangaroo Island, SA

Kangaroo Island, South Australia
Medium Risk
Updated Mar 2026

Kangaroo Island faces increasing climate risks, particularly from bushfires, heatwaves, and coastal hazards. The island's unique ecosystems and communities are vulnerable to these changes. Proactive adaptation measures are essential to mitigate these risks.

Overall Risk Score

58/100
Medium

Confidence: Medium

Hazard Breakdown

Flood
4.5
Bushfire
7.0
Heat
6.0
Coastal
5.5

Climate Hazard Breakdown for Kangaroo Island

increasing

Flood

45/100

Kangaroo Island faces a moderate risk of flooding, primarily from heavy rainfall events and coastal inundation. Low-lying areas are particularly vulnerable.

Key drivers:

  • ·Increased rainfall intensity
  • ·Sea level rise
increasing

Bushfire

70/100

Kangaroo Island has a high bushfire risk due to its dry vegetation and hot summers. The risk is exacerbated by strong winds and potential ignition sources.

Key drivers:

  • ·Drier conditions
  • ·Increased frequency of heatwaves
increasing

Heat

60/100

Kangaroo Island is experiencing more frequent and intense heatwaves, posing a risk to vulnerable populations and infrastructure.

Key drivers:

  • ·Rising global temperatures
  • ·Urban heat island effect (limited on KI)
increasing

Coastal

55/100

Kangaroo Island faces a moderate risk from coastal hazards, including sea level rise, coastal erosion, and storm surges, impacting coastal communities and ecosystems.

Key drivers:

  • ·Sea level rise
  • ·Increased storm intensity
stable

Wind

28/100

Moderate wind risk — gusty northerly winds

stable

Storm

24/100

Moderate storm risk — occasional thunderstorms

stable

Social

21/100

Moderate social stability

increasing

Energy

35/100

Moderate energy costs — summer cooling

In-Depth Climate Risk Guides for Kangaroo Island

Detailed Hazard Analysis

heat Risk

60/100

Kangaroo Island is experiencing more frequent and intense heatwaves, posing a risk to vulnerable populations and infrastructure.

Primary Drivers

  • ·Rising global temperatures
  • ·Urban heat island effect (limited on KI)
  • ·Reduced rainfall

Projections (RCP8.5)

2030

6.5

2050

7.0

Data source

flood Risk

45/100

Kangaroo Island faces a moderate risk of flooding, primarily from heavy rainfall events and coastal inundation. Low-lying areas are particularly vulnerable.

Primary Drivers

  • ·Increased rainfall intensity
  • ·Sea level rise
  • ·Storm surges

Projections (RCP8.5)

2030

5.0

2050

5.5

Data source

coastal Risk

55/100

Kangaroo Island faces a moderate risk from coastal hazards, including sea level rise, coastal erosion, and storm surges, impacting coastal communities and ecosystems.

Primary Drivers

  • ·Sea level rise
  • ·Increased storm intensity
  • ·Coastal erosion

Projections (RCP8.5)

2030

6.0

2050

6.5

Data source

bushfire Risk

70/100

Kangaroo Island has a high bushfire risk due to its dry vegetation and hot summers. The risk is exacerbated by strong winds and potential ignition sources.

Primary Drivers

  • ·Drier conditions
  • ·Increased frequency of heatwaves
  • ·Accumulation of dry vegetation

Projections (RCP8.5)

2030

7.5

2050

8.0

Data source

What This Means for Property Owners

Insurance Outlook

Insurance premiums are likely to increase in high-risk areas due to increased frequency and severity of climate-related events.

Price Impact

Properties in high-risk areas may experience a decrease in value due to concerns about climate impacts.

Buyer Checklist

  • 1.Check flood maps and bushfire-prone area designations.
  • 2.Assess the property's vulnerability to coastal hazards.
  • 3.Inquire about insurance costs and coverage.
  • 4.Consider the long-term climate risks in the area.

Local Climate Evidence

Flood Evidence

Nearest Waterway
Numerous creeks and coastal areas
Elevation Range
Sea level to 300m
Flood Zone
Coastal and riverine floodplains

Low-lying coastal areas around Kingscote and Penneshaw are particularly susceptible to coastal inundation. Several creeks across the island are prone to flash flooding during heavy rainfall events.

View council flood map

Bushfire Evidence

Distance to Bushland
Immediately adjacent to most settlements
Planning Overlay
CFS Bushfire Prone Area Map
Bushfire Prone Area
Yes

Much of Kangaroo Island is designated as a bushfire-prone area. The 2019-2020 bushfires had a catastrophic impact on the island's ecosystems and communities.

Heat Evidence

Avg January Max Temp
27.5°C
Heat Stress Days/Year
3 days

Kangaroo Island experiences several days above 35°C each summer. Heatwaves are becoming more frequent and intense, posing a risk to vulnerable populations.

Coastal Evidence

Distance to Coast
0.1 km
Sea Level Rise Exposure
Moderate to High
Erosion Risk
Moderate

Historical Climate Events

2020
bushfireCatastrophic

The 2019-2020 bushfires devastated Kangaroo Island, burning approximately 48% of the island and causing significant ecological and economic damage.

Source
2016
stormModerate

A severe storm caused widespread damage across Kangaroo Island, including power outages, fallen trees, and coastal erosion.

Source
2007
floodModerate

Heavy rainfall caused flash flooding in several areas of Kangaroo Island, disrupting traffic and damaging infrastructure.

Source
2009
heatwaveModerate

A prolonged heatwave affected Kangaroo Island, with temperatures exceeding 40°C for several consecutive days.

Source

Climate Outlook to 2050

Projections based on CSIRO and BOM climate modelling. Scenario: RCP4.5

HazardToday20302050
flood454.7(+0.2)5.0(+0.5)
bushfire707.4(+0.4)8.0(+1.0)
heat606.5(+0.5)7.2(+1.2)
coastal555.6(+0.1)6.3(+0.8)

Under a moderate emissions scenario, Kangaroo Island is projected to experience a slight increase in overall climate risk by 2030, with notable increases in bushfire and heatwave risks.

CSIRO Climate Projections

Adaptation Recommendations

Strengthen Bushfire Management

Immediate

Implement comprehensive bushfire management strategies, including fuel reduction, early detection systems, and community education programs.

Est. cost: High

Learn more

Protect Coastal Areas

Near-term

Implement coastal protection measures, such as seawalls, dune restoration, and managed retreat, to mitigate the impacts of sea level rise and coastal erosion.

Est. cost: High

Learn more

Enhance Water Security

Near-term

Invest in water infrastructure and management strategies to ensure a reliable water supply during periods of drought and changing rainfall patterns.

Est. cost: Medium

Learn more

Promote Climate-Resilient Agriculture

Long-term

Support farmers in adopting climate-resilient agricultural practices, such as drought-resistant crops and water-efficient irrigation techniques.

Est. cost: Medium

Learn more

About Kangaroo Island's Climate Risk Profile

Kangaroo Island, known for its pristine natural environment and unique wildlife, is increasingly vulnerable to the impacts of climate change. Rising temperatures, changing rainfall patterns, and sea level rise pose significant threats to the island's ecosystems, infrastructure, and communities.

Bushfire risk is a major concern, with the island experiencing devastating fires in recent years. Drier conditions and more frequent heatwaves are exacerbating this risk, threatening both human lives and the island's iconic flora and fauna. Coastal erosion and inundation are also growing threats, impacting coastal settlements and natural habitats.

Heatwaves are becoming more frequent and intense, placing stress on vulnerable populations and infrastructure. Changes in rainfall patterns may lead to water scarcity and impact agricultural productivity. The combined effects of these climate hazards require a comprehensive and coordinated response.

Adapting to climate change on Kangaroo Island requires a multi-faceted approach, including reducing greenhouse gas emissions, implementing bushfire management strategies, protecting coastal areas, and enhancing community resilience. Collaboration between government, local communities, and research institutions is crucial to ensure a sustainable future for the island.

Data sources: BOM · CSIRO · CFS · SA Government Environment and Water

Local Government Resources

Frequently Asked Questions

What are the main climate change risks facing Kangaroo Island?

Kangaroo Island faces significant risks from bushfires, heatwaves, coastal erosion, and changes in rainfall patterns due to climate change. These risks threaten the island's ecosystems, infrastructure, and communities.

How will climate change affect property values on Kangaroo Island?

Properties in high-risk areas, such as those prone to bushfires or coastal inundation, may experience a decrease in value due to concerns about climate impacts. Insurance premiums are also likely to increase in these areas.

What is the local council doing to address climate change?

The Kangaroo Island Council is developing and implementing strategies to address climate change, including bushfire management, coastal protection, and water security measures. They also work with the community to promote climate resilience.

What can I do to prepare for climate change on Kangaroo Island?

You can prepare for climate change by taking steps to protect your property from bushfires and coastal hazards, conserving water, and supporting local initiatives to reduce greenhouse gas emissions. Stay informed about climate risks and emergency preparedness.

Where can I find more information about climate change projections for Kangaroo Island?

You can find more information about climate change projections for Kangaroo Island from the CSIRO, the Bureau of Meteorology, and the South Australian government's environment and water resources department.

Get your property's risk report

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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