Climate Risk in Kurnell, NSW

Kurnell, New South Wales· Sutherland Shire· 2231
Medium Risk
Updated Mar 2026

Kurnell faces a number of climate-related risks, including flooding, bushfires, heatwaves, and coastal erosion. These risks are expected to increase in the future due to climate change. Residents and property owners should take steps to prepare for these risks.

Overall Risk Score

5.5/10
Medium

Confidence: Medium

Hazard Breakdown

Flood
6.0
Bushfire
4.0
Heat
7.0
Coastal
5.0

Detailed Hazard Analysis

heat Risk

7.0/10

Kurnell is expected to experience more frequent and intense heatwaves in the future. This will increase the risk of heatstroke and other heat-related illnesses, particularly for vulnerable populations.

Primary Drivers

  • ·Rising global temperatures
  • ·Urban heat island effect

Projections (RCP8.5)

2030

7.5

2050

8.5

Data source

flood Risk

6.0/10

Kurnell faces a moderate risk of flooding due to its low-lying coastal location and proximity to waterways. Increased rainfall intensity and sea level rise are expected to exacerbate this risk.

Primary Drivers

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

Projections (RCP8.5)

2030

6.5

2050

7.5

Data source

coastal Risk

5.0/10

Kurnell is vulnerable to coastal erosion and inundation due to sea level rise and storm surge. This could damage property and infrastructure, and displace residents.

Primary Drivers

  • ·Sea level rise
  • ·Storm surge
  • ·Coastal erosion

Projections (RCP8.5)

2030

5.5

2050

6.5

Data source

bushfire Risk

4.0/10

Kurnell has a moderate bushfire risk due to its proximity to the Royal National Park. Hot, dry conditions and strong winds can increase the likelihood of bushfires.

Primary Drivers

  • ·Dry vegetation
  • ·High temperatures
  • ·Strong winds

Projections (RCP4.5)

2030

4.2

2050

4.5

Data source

What This Means for Property Owners

Insurance Outlook

Insurance premiums are likely to increase in the future due to climate change risks.

Price Impact

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

Buyer Checklist

  • 1.Check flood maps and bushfire prone area designations.
  • 2.Assess property's vulnerability to sea level rise and coastal erosion.
  • 3.Inquire about past flood or bushfire events.
  • 4.Consider the cost of insurance and potential for increased premiums.

Local Climate Evidence

Flood Evidence

Nearest Waterway
Botany Bay
Elevation Range
0-20 meters
Flood Zone
Coastal floodplain

Several areas in Kurnell are prone to flash flooding during heavy rainfall events.

View council flood map

Bushfire Evidence

Distance to Bushland
Adjacent to Royal National Park
Planning Overlay
https://www.rfs.nsw.gov.au/plan-and-prepare/bush-fire-prone-land
Bushfire Prone Area
Yes

The western edge of Kurnell borders the Royal National Park, increasing bushfire risk.

Heat Evidence

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

Kurnell experiences several days above 30°C each summer, increasing heat stress risk.

Coastal Evidence

Distance to Coast
0.5 km
Sea Level Rise Exposure
Low-lying areas are exposed to sea level rise.
Erosion Risk
Moderate erosion risk along the coastline.

Historical Climate Events

2022
floodModerate

Heavy rainfall caused flash flooding in parts of Kurnell, leading to road closures and property damage.

Source
2020
bushfireModerate

Bushfires in the Royal National Park threatened Kurnell, requiring residents to be prepared for evacuation.

Source
2019
heatwaveModerate

Kurnell experienced a prolonged heatwave with temperatures exceeding 40°C for several days.

Source
2016
stormMajor

A severe storm caused significant coastal erosion in Kurnell, damaging beaches and infrastructure.

Source

Climate Outlook to 2050

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

HazardToday20302050
flood6.06.5(+0.5)7.0(+1.0)
bushfire4.04.2(+0.2)4.5(+0.5)
heat7.07.4(+0.4)8.5(+1.5)
coastal5.05.3(+0.3)6.0(+1.0)

By 2030, Kurnell is projected to experience a moderate increase in overall climate risk under the RCP4.5 scenario. Flooding and heat risks are expected to increase the most, followed by coastal erosion and bushfire risks.

CSIRO Climate Projections

Adaptation Recommendations

Improve drainage infrastructure

Near-term

Upgrade drainage systems to reduce the risk of flash flooding during heavy rainfall events.

Est. cost: Medium

Learn more

Strengthen coastal defenses

Long-term

Construct seawalls and other coastal defenses to protect against sea level rise and storm surge.

Est. cost: High

Learn more

Develop a heatwave response plan

Immediate

Implement a heatwave response plan to protect vulnerable populations during extreme heat events.

Est. cost: Low

Learn more

Reduce bushfire risk

Near-term

Implement bushfire mitigation measures, such as clearing vegetation around properties and conducting controlled burns.

Est. cost: Medium

Learn more

Raise awareness of climate risks

Immediate

Educate residents about the risks of climate change and how to prepare for them.

Est. cost: Low

Learn more

About Kurnell's Climate Risk Profile

Kurnell is a suburb located in the Sutherland Shire, south of Sydney. It is known for its beaches, national park, and industrial area. The suburb is vulnerable to a range of climate change impacts, including sea level rise, increased flooding, more intense heatwaves, and bushfires.

Sea level rise poses a significant threat to Kurnell, with low-lying areas at risk of inundation. Coastal erosion is also a concern, as rising sea levels and storm surges can damage beaches and infrastructure. Increased rainfall intensity can lead to more frequent and severe flooding, particularly in areas near waterways.

Heatwaves are expected to become more common and intense in Kurnell, increasing the risk of heatstroke and other heat-related illnesses. Bushfires are also a threat, particularly during hot, dry periods. The Royal National Park, which borders Kurnell, is a potential source of bushfires.

Addressing these climate risks requires a combination of mitigation and adaptation measures. Mitigation involves reducing greenhouse gas emissions to slow down climate change. Adaptation involves taking steps to prepare for the impacts of climate change that are already happening or are expected to happen in the future. This includes measures such as building seawalls, improving drainage systems, and developing heatwave response plans.

Data sources: BOM · CSIRO · NSW SES · NSW RFS · Sutherland Shire Council

Local Government Resources

Frequently Asked Questions

What are the main climate change risks in Kurnell?

Kurnell faces risks from flooding, bushfires, heatwaves, and coastal erosion, all of which are expected to worsen with climate change.

How will sea level rise affect Kurnell?

Sea level rise could inundate low-lying areas of Kurnell, damage coastal infrastructure, and increase the risk of coastal erosion.

What can I do to prepare for heatwaves in Kurnell?

Stay hydrated, stay cool, and check on vulnerable neighbors during heatwaves. Follow advice from NSW Health.

Is my property in Kurnell at risk of flooding?

Check the Sutherland Shire Council's flood maps to determine your property's flood risk. Consider flood insurance if you are in a flood-prone area.

How can I protect my home from bushfires in Kurnell?

Clear vegetation around your home, have a bushfire survival plan, and stay informed about bushfire risks from the NSW RFS.

Where can I find more information about climate change in Kurnell?

Consult the Sutherland Shire Council's website, the NSW Department of Planning and Environment, and the CSIRO for more information.

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