Climate Risk Assessment: Mordialloc, VIC
Mordialloc is a bayside suburb in Melbourne facing increasing climate risks. The primary concerns are flooding, heatwaves, and coastal hazards, driven by sea level rise and changing weather patterns. Residents should prepare for more frequent extreme weather events.
Is Mordialloc Safe from Climate Risk?
Enter your address below for an instant climate risk assessment for Mordialloc, Victoria, covering flood, bushfire, sea level rise and more.
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Overall Risk Score
Hazard Breakdown
Flood, bushfire, heat, coastal and storm exposure are all assessed in this area. The score that matters is the property's own: a ClimateNest report scores the address across eight hazards, with insurance and value projections to 2050.
What the mapping shows for Mordialloc
Part of Mordialloc is mapped as subject to coastal inundation.
0.2% of Mordialloc is mapped as subject to coastal inundation at current sea level
Victorian Coastal Inundation, State of Victoria (DEECA), CC BY 4.0, retrieved 2026-10-21
This is a share of the suburb's land area from a published state dataset, not an assessment of any property. A ClimateNest report scores the individual address across eight hazards, with insurance and value projections to 2050.
Check an address in Mordialloc →Climate Hazard Breakdown for Mordialloc
Flood
Mordialloc 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.
Key drivers:
- ·Sea level rise
- ·Increased rainfall intensity
Bushfire
The risk of bushfire in Mordialloc is relatively low due to its coastal location and limited vegetation. However, increased temperatures and drier conditions could slightly elevate the risk.
Key drivers:
- ·Increased temperatures
- ·Drier conditions
Heat
Mordialloc is likely to experience more frequent and intense heatwaves. This poses a risk to vulnerable populations, particularly the elderly and those with pre-existing health conditions.
Key drivers:
- ·Rising average temperatures
- ·Increased frequency of heatwaves
Coastal
Mordialloc faces a moderate risk from coastal hazards, including sea level rise and coastal erosion. These hazards could impact infrastructure, property, and recreational areas along the coastline.
Key drivers:
- ·Sea level rise
- ·Increased storm surge
Wind
Data being compiled
Storm
Data being compiled
Social
Data being compiled
Energy
Data being compiled
In-Depth Climate Risk Guides for Mordialloc
Property buying guide with climate risk assessment
Flood zone mapping, historical events, and projections
BAL assessment, vegetation proximity, and fire history
Multi-hazard safety assessment to 2050
Severe weather, hail, and wind risk analysis
Extreme heat days, urban heat island, and cooling costs
Premium estimates and insurance availability
Climate-adjusted property investment analysis
Detailed Hazard Analysis
heat Risk
Mordialloc is likely to experience more frequent and intense heatwaves. This poses a risk to vulnerable populations, particularly the elderly and those with pre-existing health conditions.
Primary Drivers
- ·Rising average temperatures
- ·Increased frequency of heatwaves
- ·Urban heat island effect
flood Risk
Mordialloc 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
coastal Risk
Mordialloc faces a moderate risk from coastal hazards, including sea level rise and coastal erosion. These hazards could impact infrastructure, property, and recreational areas along the coastline.
Primary Drivers
- ·Sea level rise
- ·Increased storm surge
- ·Coastal erosion
bushfire Risk
The risk of bushfire in Mordialloc is relatively low due to its coastal location and limited vegetation. However, increased temperatures and drier conditions could slightly elevate the risk.
Primary Drivers
- ·Increased temperatures
- ·Drier conditions
- ·Wind patterns
What This Means for Property Owners
Insurance Outlook
Insurance premiums may increase in the future due to increased flood and coastal risks.
Price Impact
Properties in low-lying areas may experience a negative impact on property values.
Buyer Checklist
- 1.Check flood maps and historical flood data.
- 2.Assess the property's vulnerability to sea level rise and coastal erosion.
- 3.Consider the potential impact of heatwaves on the property.
- 4.Inquire about council plans for climate adaptation.
How the region's climate is projected to change
Regional projections, not a forecast for this street. Figures are from the WA Department of Water and Environmental Regulation's climate projections for the South Western Flatlands region, which draws on CSIRO and Bureau of Meteorology modelling.
Temperature
+0.5 to 1.1°C by 2030
Above the 1986–2005 climate, on all emissions scenarios. By 2090, 1.2 to 2.0°C under intermediate emissions or 2.6 to 4.0°C under high emissions.
Rainfall
Winter rain down up to 15% by 2030
The South West has been drying since 1970, and the decline has been larger than anywhere else in Australia. Heavy rainfall events are projected to become more intense even as totals fall.
Fire weather
Harsher, magnitude uncertain
High confidence that fire weather becomes harsher, low confidence in the size of the change, because it depends heavily on summer rainfall.
Sea level
+0.12 m by 2030
At the Fremantle gauge, range 0.07 to 0.16 m. Very high confidence that sea levels continue to rise through the century.
Source: Department of Water and Environmental Regulation (WA), Western Australian climate projections: summary, September 2021, South Western Flatlands chapter. Read the projections →
Adaptation Recommendations
Improve Drainage Infrastructure
Near-termUpgrade drainage systems to handle increased rainfall intensity and reduce the risk of flooding.
Est. cost: Medium
Learn moreImplement Coastal Protection Measures
Near-termConstruct or reinforce sea walls and other coastal defenses to protect against sea level rise and erosion.
Est. cost: High
Learn moreDevelop a Heatwave Management Plan
ImmediateCreate a plan to protect vulnerable populations during heatwaves, including establishing cooling centers and providing public awareness campaigns.
Est. cost: Low
Learn morePromote Water Conservation
Long-termEncourage residents to conserve water through education and incentives to reduce strain on water resources during droughts.
Est. cost: Low
Learn moreRaise Community Awareness
ImmediateEducate residents about climate change risks and adaptation measures through workshops, online resources, and community events.
Est. cost: Low
Learn moreAbout Mordialloc's Climate Risk Profile
Mordialloc, a suburb located on the coast of Port Phillip Bay, is increasingly vulnerable to the impacts of climate change. The suburb's low-lying coastal geography makes it particularly susceptible to flooding from both heavy rainfall and rising sea levels. The frequency and intensity of heatwaves are also projected to increase, posing significant health risks to the community.
Coastal erosion is another growing concern for Mordialloc. As sea levels rise, the coastline is likely to recede, threatening infrastructure, property, and recreational spaces. Storm surges could also become more frequent and severe, exacerbating coastal flooding and erosion.
The local council is developing strategies to mitigate these risks, including improving drainage infrastructure, implementing coastal protection measures, and promoting community awareness. However, individual residents also need to take steps to prepare for the changing climate.
Adapting to climate change in Mordialloc will require a collaborative effort from all levels of government, the community, and individual property owners. By working together, it is possible to reduce the risks and build a more resilient future for this bayside suburb.
Suburb pages describe the local picture. The address-level assessment, with its data sources and its dollar projections, is in the ClimateNest report.
Local Government Resources
Kingston City Council
Frequently Asked Questions
What are the main climate change risks in Mordialloc?
The main climate change risks in Mordialloc are flooding, heatwaves, and coastal erosion, driven by rising sea levels and changing weather patterns.
How is the local council addressing climate change?
Kingston City Council is developing strategies to mitigate climate change risks, including improving drainage infrastructure, implementing coastal protection measures, and promoting community awareness.
What can I do to prepare for heatwaves in Mordialloc?
During heatwaves, stay indoors in air-conditioned environments, drink plenty of water, and check on vulnerable neighbors and family members.
How can I protect my property from flooding in Mordialloc?
Consider installing flood barriers, raising electrical appliances, and ensuring proper drainage around your property.
Where can I find more information about climate change risks in Mordialloc?
You can find more information on the Kingston City Council website, the Victorian State Government website, and the Bureau of Meteorology website.
Is Mordialloc considered a high-risk area for bushfires?
No, Mordialloc is not considered a high-risk area for bushfires due to its coastal location and limited vegetation.
Get your property's risk report
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What A$49 could save you from
*Industry sources: ICA, APRA, RBA
Full report from A$49 · Australian addresses only · 8 hazard scores · Insurance trajectory · 2030 & 2050 projections