Climate Risk Assessment for Fremantle, WA

Fremantle, Western Australia· City of Fremantle· 6160
Medium Risk
Updated Apr 2026

Fremantle faces increasing climate risks, particularly from coastal hazards and heatwaves. Sea level rise and storm surges pose a significant threat to coastal areas, while rising temperatures exacerbate the urban heat island effect. Residents should prepare for more frequent and intense extreme weather events.

Overall Risk Score

52/100
Medium

Confidence: Medium

Hazard Breakdown

Flood
4.5
Bushfire
3.0
Heat
6.0
Coastal
7.5

Climate Hazard Breakdown for Fremantle

increasing

Flood

45/100

Fremantle faces a moderate risk of flooding, primarily from heavy rainfall and storm surges. The low-lying areas near the coast and the Swan River are particularly vulnerable.

Key drivers:

  • ·Sea level rise
  • ·Increased rainfall intensity
stable

Bushfire

30/100

Bushfire risk in Fremantle is relatively low due to its urban environment and coastal location. However, areas bordering parks and reserves may experience some risk.

Key drivers:

  • ·Proximity to bushland
  • ·Dry vegetation
increasing

Heat

60/100

Fremantle is experiencing increasing heatwave frequency and intensity. The urban heat island effect exacerbates the impact, particularly in densely built areas.

Key drivers:

  • ·Global warming
  • ·Urbanisation
increasing

Coastal

75/100

Fremantle is highly vulnerable to coastal hazards, including sea level rise, coastal erosion, and storm surges. The coastline is already experiencing erosion, and inundation is expected to increase.

Key drivers:

  • ·Sea level rise
  • ·Increased storm intensity
stable

Wind

32/100

Moderate wind risk — winter storms

stable

Storm

28/100

Moderate storm risk — occasional severe thunderstorms

stable

Social

21/100

Moderate social stability

increasing

Energy

39/100

Moderate energy costs — cooling demand in summer

In-Depth Climate Risk Guides for Fremantle

Detailed Hazard Analysis

heat Risk

60/100

Fremantle is experiencing increasing heatwave frequency and intensity. The urban heat island effect exacerbates the impact, particularly in densely built areas.

Primary Drivers

  • ·Global warming
  • ·Urbanisation
  • ·Reduced vegetation cover

Projections (RCP8.5)

2030

6.5

2050

7.5

Data source

flood Risk

45/100

Fremantle faces a moderate risk of flooding, primarily from heavy rainfall and storm surges. The low-lying areas near the coast and the Swan River are particularly vulnerable.

Primary Drivers

  • ·Sea level rise
  • ·Increased rainfall intensity
  • ·Urban development

Projections (RCP8.5)

2030

5.0

2050

6.0

Data source

coastal Risk

75/100

Fremantle is highly vulnerable to coastal hazards, including sea level rise, coastal erosion, and storm surges. The coastline is already experiencing erosion, and inundation is expected to increase.

Primary Drivers

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

Projections (RCP8.5)

2030

8.0

2050

9.0

Data source

bushfire Risk

30/100

Bushfire risk in Fremantle is relatively low due to its urban environment and coastal location. However, areas bordering parks and reserves may experience some risk.

Primary Drivers

  • ·Proximity to bushland
  • ·Dry vegetation
  • ·Wind patterns

Projections (RCP4.5)

2030

3.2

2050

3.5

Data source

What This Means for Property Owners

Insurance Outlook

Insurance premiums may increase in areas at high risk of coastal inundation and flooding.

Price Impact

Properties in vulnerable coastal areas may experience a decrease in value due to climate risks.

Buyer Checklist

  • 1.Check flood maps and coastal hazard information.
  • 2.Assess the property's vulnerability to sea level rise and storm surges.
  • 3.Consider the potential impact of heatwaves on the property.
  • 4.Inquire about insurance coverage and premiums.
  • 5.Review the City of Fremantle's climate adaptation plans.

Local Climate Evidence

Flood Evidence

Nearest Waterway
Swan River
Elevation Range
0-20 meters
Flood Zone
Areas near the Swan River and low-lying coastal areas are prone to flooding.

The City of Fremantle has undertaken flood studies to identify areas at risk and develop mitigation strategies.

View council flood map

Bushfire Evidence

Distance to Bushland
Varies, with some areas bordering parks and reserves.
Planning Overlay
DFES Bushfire Prone Areas Map
Bushfire Prone Area
Yes

Residents in areas bordering bushland should maintain firebreaks and clear vegetation around their properties.

Heat Evidence

Avg January Max Temp
31.5°C
Heat Stress Days/Year
5 days

The Bureau of Meteorology provides heatwave forecasts and warnings for the Perth metropolitan area, including Fremantle.

Coastal Evidence

Distance to Coast
0.5 km
Sea Level Rise Exposure
Low-lying coastal areas are at risk of inundation from sea level rise.
Erosion Risk
Coastal erosion is an ongoing issue along the Fremantle coastline.

Historical Climate Events

2010
floodModerate

Heavy rainfall caused localised flooding in Fremantle, particularly in low-lying areas near the Swan River.

Source
2011
stormModerate

A severe storm caused damage to coastal infrastructure and properties in Fremantle.

Source
2013
heatwaveModerate

Fremantle experienced a prolonged heatwave with temperatures exceeding 40 degrees Celsius for several days.

Source
2018
coastalMinor

High tides and storm surges caused minor coastal erosion along the Fremantle coastline.

Source

Climate Outlook to 2050

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

HazardToday20302050
flood454.8(+0.3)5.3(+0.8)
bushfire303.1(+0.1)3.2(+0.2)
heat606.6(+0.6)7.2(+1.2)
coastal758.3(+0.8)9.5(+2.0)

Under a moderate emissions scenario, Fremantle is projected to experience a slight increase in overall climate risk by 2030. Coastal hazards and heatwaves are expected to become more frequent and intense.

CSIRO Climate Projections

Adaptation Recommendations

Coastal Protection Measures

Immediate

Implement coastal protection measures such as seawalls, groynes, and beach nourishment to protect vulnerable areas from sea level rise and erosion.

Est. cost: High

Learn more

Urban Greening

Near-term

Increase urban greening through tree planting and green infrastructure to reduce the urban heat island effect and improve stormwater management.

Est. cost: Medium

Learn more

Improved Drainage Infrastructure

Near-term

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

Est. cost: Medium

Learn more

Community Awareness Programs

Long-term

Develop and implement community awareness programs to educate residents about climate risks and adaptation measures.

Est. cost: Low

Learn more

About Fremantle's Climate Risk Profile

Fremantle, a historic port city in Western Australia, is increasingly vulnerable to the impacts of climate change. The primary risks include coastal inundation, erosion, heatwaves, and flooding. Sea level rise poses a significant threat to low-lying coastal areas, potentially impacting infrastructure, property, and ecosystems.

Rising temperatures are contributing to more frequent and intense heatwaves, particularly affecting vulnerable populations such as the elderly and those with chronic health conditions. The urban heat island effect further exacerbates the impact of heatwaves in densely built areas.

Changes in rainfall patterns and increased storm intensity are increasing the risk of flooding, particularly in areas near the Swan River and coastal regions. Heavy rainfall events can overwhelm drainage systems, leading to property damage and disruption to transportation networks.

While bushfire risk is relatively low compared to other regions in Western Australia, areas bordering parks and reserves may still be susceptible to bushfires, especially during dry periods. It is essential to maintain vegetation and implement fire prevention measures to mitigate this risk.

Addressing these climate risks requires a coordinated effort involving local government, residents, and businesses. Implementing adaptation measures such as coastal protection, urban greening, and improved drainage infrastructure is crucial to building resilience and protecting the community from the impacts of climate change.

Furthermore, reducing greenhouse gas emissions through sustainable transportation, energy efficiency, and renewable energy sources is essential to mitigating the long-term effects of climate change and ensuring a sustainable future for Fremantle.

Data sources: BOM · CSIRO · DFES

Local Government Resources

Frequently Asked Questions

What are the main climate change risks facing Fremantle?

Fremantle faces increasing risks from coastal inundation, erosion, heatwaves, and flooding due to climate change.

How is the City of Fremantle addressing climate change?

The City of Fremantle is implementing various adaptation measures, including coastal protection, urban greening, and improved drainage infrastructure.

What can residents do to prepare for climate change impacts?

Residents can take steps to protect their properties from flooding and coastal erosion, reduce their energy consumption, and stay informed about climate risks.

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

You can find more information on the City of Fremantle's website, the Bureau of Meteorology, and the CSIRO website.

Are there any community groups working on climate change in Fremantle?

Yes, there are several community groups in Fremantle that are working on climate change issues, such as Transition Fremantle and the Fremantle Sustainability Collective.

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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