Climate Risk Profile: Clarendon, SA

Clarendon, South Australia· Onkaparinga· 5157
Medium Risk
Updated Mar 2026

Clarendon is a suburb in South Australia that faces moderate climate risks, particularly from bushfires, flooding, and heatwaves. The risk scores are projected to increase slightly by 2050 under a high emissions scenario. Residents should prepare for more frequent extreme weather events.

Overall Risk Score

5.2/10
Medium

Confidence: Medium

Hazard Breakdown

Flood
4.5
Bushfire
6.0
Heat
5.0
Coastal
1.0

Detailed Hazard Analysis

heat Risk

5.0/10

Clarendon experiences moderate heat risk, with increasing average temperatures and more frequent heatwave events. This can impact vulnerable populations, infrastructure, and agricultural activities.

Primary Drivers

  • ·Rising global temperatures
  • ·Urban heat island effect

Projections (RCP8.5)

2030

5.5

2050

6.0

Data source

flood Risk

4.5/10

Clarendon faces a moderate risk of flooding, primarily from the nearby Onkaparinga River and local creeks. Intense rainfall events can lead to flash flooding, impacting low-lying areas and properties close to waterways.

Primary Drivers

  • ·Increased rainfall intensity
  • ·Urban development increasing runoff

Projections (RCP8.5)

2030

5.0

2050

5.5

Data source

coastal Risk

1.0/10

Clarendon has a very low coastal risk due to its inland location. Sea level rise and coastal erosion are not significant threats to the suburb.

Primary Drivers

  • ·Inland location

Projections (RCP8.5)

2030

1.0

2050

1.0

Data source

bushfire Risk

6.0/10

Clarendon has a high bushfire risk due to its proximity to the Adelaide Hills and surrounding bushland. Dry vegetation and strong winds create conditions conducive to bushfires, posing a threat to properties and infrastructure.

Primary Drivers

  • ·Dry summers
  • ·Accumulation of flammable vegetation

Projections (RCP8.5)

2030

6.0

2050

6.0

Data source

What This Means for Property Owners

Insurance Outlook

Insurance premiums may increase in the future due to increased climate risks.

Price Impact

Properties in high-risk areas may experience a decrease in value.

Buyer Checklist

  • 1.Check flood maps and bushfire overlays.
  • 2.Assess property's vulnerability to heatwaves.
  • 3.Consider the potential impact of climate change on property value.
  • 4.Review insurance options and premiums.

Local Climate Evidence

Flood Evidence

Nearest Waterway
Onkaparinga River
Elevation Range
150-250m
Flood Zone
Areas near the Onkaparinga River are designated as flood zones.

Historical flood data indicates that properties near the river are most vulnerable.

View council flood map

Bushfire Evidence

Distance to Bushland
Adjacent to large areas of native bushland.
Planning Overlay
CFS Bushfire Prone Area Overlay
Bushfire Prone Area
Yes

The CFS provides resources and guidance for residents in bushfire-prone areas.

Heat Evidence

Avg January Max Temp
29.5°C
Heat Stress Days/Year
3 days

Elderly residents and those with chronic health conditions are particularly vulnerable to heat stress.

Coastal Evidence

Distance to Coast
25 km
Sea Level Rise Exposure
Not applicable due to inland location.
Erosion Risk
Not applicable due to inland location.

Historical Climate Events

2019
bushfireModerate

A bushfire near Clarendon threatened properties and required emergency response.

Source
2016
floodModerate

Heavy rainfall caused flash flooding in Clarendon, impacting roads and properties near the Onkaparinga River.

Source
2009
heatwaveMajor

A prolonged heatwave in South Australia resulted in heat stress and health impacts in Clarendon.

Source
1983
bushfireCatastrophic

The Ash Wednesday bushfires had a devastating impact on the Adelaide Hills region, including areas near Clarendon.

Source

Climate Outlook to 2050

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

HazardToday20302050
flood4.54.7(+0.2)5.0(+0.5)
bushfire6.06.1(+0.1)6.3(+0.3)
heat5.05.4(+0.4)6.0(+1.0)
coastal1.01.01.0

Under a moderate emissions scenario, Clarendon is projected to experience a slight increase in overall climate risk by 2030, with heatwaves posing the greatest threat.

CSIRO Climate Projections

Adaptation Recommendations

Develop a community bushfire plan

Immediate

Create a plan that outlines evacuation routes, communication strategies, and property protection measures.

Est. cost: Low

Learn more

Improve flood management infrastructure

Near-term

Upgrade drainage systems and construct flood barriers to protect properties near the Onkaparinga River.

Est. cost: Medium

Learn more

Implement a heatwave response plan

Immediate

Establish cooling centers and provide support to vulnerable residents during heatwave events.

Est. cost: Low

Learn more

Promote water conservation

Long-term

Encourage residents to reduce water consumption and implement water-efficient landscaping practices.

Est. cost: Low

Learn more

Support local farmers in adopting climate-resilient agricultural practices

Near-term

Provide resources and training to help farmers adapt to changing weather patterns and reduce their environmental impact.

Est. cost: Medium

Learn more

About Clarendon's Climate Risk Profile

Clarendon, nestled in the Adelaide Hills, is a picturesque suburb with a rich history and a strong sense of community. However, like many areas in South Australia, it is increasingly vulnerable to the impacts of climate change.

The primary climate risks facing Clarendon include bushfires, flooding, and heatwaves. The suburb's proximity to bushland makes it susceptible to bushfires during dry summers, while intense rainfall events can lead to flash flooding in low-lying areas. Rising average temperatures and more frequent heatwaves pose a threat to vulnerable populations and infrastructure.

Climate projections indicate that these risks are likely to increase in the future. Under a high emissions scenario, Clarendon can expect to experience more frequent and intense extreme weather events, including heatwaves, droughts, and heavy rainfall. This could have significant impacts on the local economy, environment, and community.

To mitigate these risks, it is essential for residents and local authorities to take proactive measures. This includes implementing bushfire prevention strategies, improving flood management infrastructure, and developing heatwave response plans. By working together, the community can build resilience and adapt to the changing climate.

Data sources: BOM · CSIRO · CFS · SES · Onkaparinga City Council

Local Government Resources

Frequently Asked Questions

What are the main climate risks facing Clarendon?

Clarendon faces risks from bushfires due to its proximity to bushland, flooding from the Onkaparinga River, and heatwaves during summer.

How is the local council addressing climate change?

The Onkaparinga City Council has a climate strategy that outlines actions to reduce emissions and adapt to the impacts of climate change.

What can I do to prepare for a bushfire?

You can prepare by creating a bushfire survival plan, clearing vegetation around your property, and having an emergency kit ready.

Where can I find information about flood risks in Clarendon?

You can find flood maps and information on the Onkaparinga City Council website and the Department for Environment and Water website.

How can I stay safe during a heatwave?

Stay indoors in air-conditioned environments, drink plenty of water, and avoid strenuous activity during the hottest part of the day.

Are there any community initiatives to address climate change in Clarendon?

Yes, there are local community groups and organizations that are working to promote sustainability and climate action in the area.

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