Climate Risk in Warrnambool, Victoria

Warrnambool, Victoria· 3280
Medium Risk
Updated Mar 2026

Warrnambool faces a moderate climate risk, primarily driven by increasing flood, heatwave, and coastal hazards. Residents should prepare for more frequent extreme weather events and consider adaptation measures to protect their property and well-being.

Overall Risk Score

58/100
Medium

Confidence: Medium

Hazard Breakdown

Flood
6.5
Bushfire
3.2
Heat
7.1
Coastal
6.4

Climate Hazard Breakdown for Warrnambool

increasing

Flood

65/100

Warrnambool faces a moderate risk of flooding due to its proximity to the Merri River and coastal location. Increased rainfall intensity and sea-level rise are expected to exacerbate this risk.

Key drivers:

  • ·Increased rainfall intensity
  • ·Sea-level rise
increasing

Bushfire

32/100

The bushfire risk in Warrnambool is relatively low compared to other regions in Victoria, but still present due to surrounding grasslands and forested areas. Drier conditions and higher temperatures could increase the risk.

Key drivers:

  • ·Drier conditions
  • ·Higher temperatures
increasing

Heat

71/100

Warrnambool is experiencing an increase in the frequency and intensity of heatwaves. This poses a significant risk to vulnerable populations, including the elderly and those with pre-existing health conditions.

Key drivers:

  • ·Rising average temperatures
  • ·Increased frequency of heatwaves
increasing

Coastal

64/100

Warrnambool's coastal location makes it vulnerable to sea-level rise and coastal erosion. This poses a threat to infrastructure, property, and natural ecosystems.

Key drivers:

  • ·Sea-level rise
  • ·Increased storm surge
stable

Wind

28/100

Moderate wind risk — cold fronts and gusty winds

stable

Storm

32/100

Moderate storm risk — severe thunderstorms

stable

Social

21/100

Moderate social stability

increasing

Energy

35/100

Moderate energy costs — heating and cooling needs

In-Depth Climate Risk Guides for Warrnambool

Detailed Hazard Analysis

heat Risk

71/100

Warrnambool is experiencing an increase in the frequency and intensity of heatwaves. This poses a significant risk to vulnerable populations, including the elderly and those with pre-existing health conditions.

Primary Drivers

  • ·Rising average temperatures
  • ·Increased frequency of heatwaves
  • ·Urban heat island effect

Projections (RCP8.5)

2030

7.6

2050

8.1

Data source

flood Risk

65/100

Warrnambool faces a moderate risk of flooding due to its proximity to the Merri River and coastal location. Increased rainfall intensity and sea-level rise are expected to exacerbate this risk.

Primary Drivers

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

Projections (RCP8.5)

2030

7.0

2050

7.5

Data source

coastal Risk

64/100

Warrnambool's coastal location makes it vulnerable to sea-level rise and coastal erosion. This poses a threat to infrastructure, property, and natural ecosystems.

Primary Drivers

  • ·Sea-level rise
  • ·Increased storm surge
  • ·Coastal erosion

Projections (RCP8.5)

2030

6.9

2050

7.4

Data source

bushfire Risk

32/100

The bushfire risk in Warrnambool is relatively low compared to other regions in Victoria, but still present due to surrounding grasslands and forested areas. Drier conditions and higher temperatures could increase the risk.

Primary Drivers

  • ·Drier conditions
  • ·Higher temperatures
  • ·Vegetation dryness

Projections (RCP8.5)

2030

3.7

2050

4.2

Data source

What This Means for Property Owners

Insurance Outlook

Insurance premiums may increase in areas prone to flooding and coastal erosion.

Price Impact

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

Buyer Checklist

  • 1.Check flood maps and coastal erosion risk assessments.
  • 2.Assess the property's vulnerability to heatwaves.
  • 3.Consider the potential impact of climate change on insurance premiums.
  • 4.Inquire about council plans for climate adaptation.

Local Climate Evidence

Flood Evidence

Nearest Waterway
Merri River
Elevation Range
0-50 meters
Flood Zone
Areas near the Merri River and coastal areas are prone to flooding.

The Warrnambool City Council has implemented flood mitigation measures, including drainage improvements and flood warning systems.

View council flood map

Bushfire Evidence

Distance to Bushland
5-10 km to significant bushland areas.
Planning Overlay
Bushfire Management Overlay may apply to some properties.
Bushfire Prone Area
Yes

Residents should maintain their properties to reduce the risk of bushfire spread.

Heat Evidence

Avg January Max Temp
25°C
Heat Stress Days/Year
3 days

The number of days exceeding 30 degrees Celsius is projected to increase in the coming decades.

Coastal Evidence

Distance to Coast
0.5 km
Sea Level Rise Exposure
Low-lying coastal areas are exposed to sea-level rise.
Erosion Risk
Coastal erosion is a concern along the Warrnambool coastline.

Historical Climate Events

2011
floodModerate

Major flooding along the Merri River caused significant damage to properties and infrastructure.

Source
2009
heatwaveMajor

Record-breaking heatwave conditions across Victoria, including Warrnambool, resulted in heat stress and health impacts.

Source
2015
coastalMinor

Coastal erosion damaged beaches and infrastructure along the Warrnambool coastline.

Source
2023
stormModerate

Severe storms caused flash flooding and property damage in parts of Warrnambool.

Source

Climate Outlook to 2050

Projections based on CSIRO and BOM climate modelling. Scenario: RCP8.5

HazardToday20302050
flood657.0(+0.5)7.5(+1.0)
bushfire323.7(+0.5)4.2(+1.0)
heat717.6(+0.5)8.1(+1.0)
coastal646.9(+0.5)7.4(+1.0)

By 2030, Warrnambool is projected to experience a moderate increase in overall climate risk, with rising temperatures, more frequent heatwaves, and increased risk of flooding and coastal erosion.

CSIRO Climate Projections

Adaptation Recommendations

Improve Flood Defenses

Near-term

Invest in flood mitigation infrastructure, such as levees and drainage improvements, to protect properties from flooding.

Est. cost: High

Learn more

Develop Heat Action Plans

Immediate

Implement heat action plans to protect vulnerable populations during heatwaves, including establishing cooling centers and providing public awareness campaigns.

Est. cost: Medium

Learn more

Strengthen Coastal Protection

Long-term

Implement coastal protection measures, such as seawalls and beach nourishment, to protect coastal properties and ecosystems from erosion.

Est. cost: High

Learn more

Promote Water Conservation

Near-term

Encourage water conservation practices to reduce water demand and ensure water security during periods of drought.

Est. cost: Low

Learn more

About Warrnambool's Climate Risk Profile

Warrnambool, located on the southwest coast of Victoria, is increasingly vulnerable to the impacts of climate change. The region is experiencing rising average temperatures, more frequent and intense heatwaves, and sea-level rise, all of which pose significant risks to the community and the environment.

Flooding is a major concern for Warrnambool due to its proximity to the Merri River and the coast. Increased rainfall intensity and sea-level rise are expected to exacerbate the risk of flooding, potentially impacting homes, businesses, and infrastructure. Coastal erosion is also a growing threat, with rising sea levels and storm surges threatening coastal properties and ecosystems.

Heatwaves are becoming more frequent and intense in Warrnambool, posing a significant risk to vulnerable populations, such as the elderly and those with pre-existing health conditions. The urban heat island effect can further amplify the impact of heatwaves in built-up areas.

While the bushfire risk in Warrnambool is relatively lower compared to other parts of Victoria, it is still a concern, particularly in areas with surrounding grasslands and forested areas. Drier conditions and higher temperatures can increase the risk of bushfires, potentially threatening lives and property.

Data sources: BOM · CSIRO · EMV · Warrnambool City Council

Local Government Resources

Frequently Asked Questions

What are the main climate change risks in Warrnambool?

The main climate change risks in Warrnambool are flooding, heatwaves, and coastal erosion. These risks are expected to increase in the coming decades due to rising temperatures, sea-level rise, and more frequent extreme weather events.

How is the Warrnambool City Council addressing climate change?

The Warrnambool City Council is developing and implementing climate adaptation strategies to reduce the impacts of climate change on the community. These strategies include improving flood defenses, promoting water conservation, and strengthening coastal protection.

What can residents do to prepare for heatwaves in Warrnambool?

Residents can prepare for heatwaves by staying hydrated, seeking air-conditioned environments, and checking on vulnerable neighbors. The council also provides cooling centers during heatwaves.

Where can I find information about flood risks in Warrnambool?

Information about flood risks in Warrnambool can be found on the Warrnambool City Council website and the Victorian State Emergency Service website. These websites provide flood maps, flood warnings, and advice on how to prepare for floods.

How will climate change affect property values in Warrnambool?

Climate change may affect property values in Warrnambool, particularly in areas prone to flooding and coastal erosion. Properties in high-risk areas may experience a decrease in value, while properties in safer areas may become more desirable.

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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