Coronet Bay Climate Risk Profile

Coronet Bay, Victoria· Bass Coast Shire Council· 3984
Medium Risk
Updated June 2026

Coronet Bay, VIC, faces a medium overall climate risk, primarily driven by a moderate to high bushfire risk due to its proximity to bushland. Flood and heat risks are present but lower, while coastal risks are minimal. Future projections indicate a slight increase in all risk categories.

Overall Risk Score

55/100
Medium

Confidence: Medium

Hazard Breakdown

Flood
4.0
Bushfire
6.5
Heat
5.0
Coastal
3.0

Climate Hazard Breakdown for Coronet Bay

stable

Flood

40/100

Low to moderate flood risk, primarily from localised heavy rainfall and potential minor inundation from nearby waterways.

Key drivers:

  • ·Heavy rainfall events
  • ·Urbanisation increasing runoff
increasing

Bushfire

65/100

Moderate to high bushfire risk due to proximity to significant bushland areas and vegetation types common in Victoria.

Key drivers:

  • ·Increased fuel loads
  • ·Warmer, drier conditions
increasing

Heat

50/100

Moderate heat risk, with increasing frequency and intensity of heatwaves projected.

Key drivers:

  • ·Rising average temperatures
  • ·Increased frequency of extreme heat days
stable

Coastal

30/100

Low coastal risk due to distance from the immediate coastline, but potential for storm surge impacts during extreme weather.

Key drivers:

  • ·Storm surge events
  • ·King tides
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 Coronet Bay

Detailed Hazard Analysis

heat Risk

50/100

Moderate heat risk, with increasing frequency and intensity of heatwaves projected.

Primary Drivers

  • ·Rising average temperatures
  • ·Increased frequency of extreme heat days
  • ·Urban heat island effect (minor)

Projections (SSP2-4.5)

2030

5.5

2050

6.0

Data source

flood Risk

40/100

Low to moderate flood risk, primarily from localised heavy rainfall and potential minor inundation from nearby waterways.

Primary Drivers

  • ·Heavy rainfall events
  • ·Urbanisation increasing runoff

Projections (SSP2-4.5)

2030

4.2

2050

4.5

Data source

coastal Risk

30/100

Low coastal risk due to distance from the immediate coastline, but potential for storm surge impacts during extreme weather.

Primary Drivers

  • ·Storm surge events
  • ·King tides

Projections (SSP2-4.5)

2030

3.2

2050

3.5

Data source

bushfire Risk

65/100

Moderate to high bushfire risk due to proximity to significant bushland areas and vegetation types common in Victoria.

Primary Drivers

  • ·Increased fuel loads
  • ·Warmer, drier conditions
  • ·Prevailing winds

Projections (SSP2-4.5)

2030

7.0

2050

7.5

Data source

What This Means for Property Owners

Insurance Outlook

Moderate. Bushfire risk may lead to higher premiums or specific policy conditions.

Price Impact

Potential for negative impact on resale value in high-risk zones, particularly for bushfire-prone properties.

Buyer Checklist

  • 1.Review bushfire attack level (BAL) rating for the property.
  • 2.Check proximity to vegetation and potential fuel sources.
  • 3.Understand local flood mapping and drainage.
  • 4.Assess property's heat resilience (e.g., insulation, shading).
  • 5.Verify emergency service access routes.

Local Climate Evidence

Flood Evidence

Nearest Waterway
Various minor creeks and drainage lines
Elevation Range
10-50m above sea level
Flood Zone
Limited, primarily localised overland flow paths

Flood risk is mainly associated with intense rainfall events overwhelming local drainage rather than riverine flooding.

View council flood map

Bushfire Evidence

Distance to Bushland
Adjacent to significant bushland reserves and coastal heathland
Planning Overlay
Bushfire Prone Area overlay
Bushfire Prone Area
Yes

The suburb is situated within a designated bushfire-prone area, requiring adherence to specific building regulations and fire safety measures.

Heat Evidence

Avg January Max Temp
24.5°C
Heat Stress Days/Year
5 days

Average January maximum temperatures are moderate, but the number of days exceeding 35°C is projected to increase.

Coastal Evidence

Distance to Coast
5 km
Sea Level Rise Exposure
Low
Erosion Risk
Low

Historical Climate Events

2009
bushfireMajor

The Black Saturday bushfires impacted surrounding regions, highlighting the bushfire risk in areas like Coronet Bay, though the suburb itself was largely spared direct destruction.

Source
2011
stormModerate

Significant storm events caused widespread power outages and minor property damage across Gippsland, including areas near Coronet Bay.

Source
2016
heatwaveMajor

A prolonged heatwave affected Victoria, with temperatures soaring, posing health risks and increasing bushfire danger in susceptible areas.

Source
2021
floodMinor

Heavy rainfall led to localised flooding and flash flooding in parts of Gippsland, impacting some low-lying areas and roads.

Source

Climate Outlook to 2050

Projections based on CSIRO and BOM climate modelling. Scenario: SSP2-4.5

HazardToday20302050
flood404.1(+0.1)4.2(+0.2)
bushfire656.9(+0.4)7.2(+0.7)
heat505.3(+0.3)5.5(+0.5)
coastal303.1(+0.1)3.2(+0.2)

By 2030, under a moderate emissions scenario (SSP2-4.5), Coronet Bay is projected to see a slight increase in overall climate risk. Bushfire risk is expected to rise most significantly due to warmer and drier conditions, followed by heatwave frequency. Flood and coastal risks are projected to remain relatively stable but with a slight upward trend.

CSIRO Climate Projections

Adaptation Recommendations

Strengthen Bushfire Preparedness

Immediate

Develop and maintain a comprehensive Bushfire Survival Plan, including clear evacuation routes and communication strategies. Maintain defensible space around properties by managing vegetation.

Est. cost: $

Learn more

Improve Property Flood Resilience

Near-term

Ensure property drainage systems are clear and functional. Consider flood-resistant landscaping and elevated essential services where feasible, especially in known low-lying areas.

Est. cost: $$

Learn more

Enhance Heatwave Response

Near-term

Install effective insulation, shading (e.g., awnings, trees), and cooling systems. Stay informed about heatwave warnings and check on vulnerable neighbours.

Est. cost: $$

Learn more

Community Bushfire Education

Long-term

Participate in local community bushfire preparedness meetings and educational sessions. Support neighbourhood fire-safe initiatives.

Est. cost: $

Learn more

Water Management and Runoff Control

Long-term

Implement water-sensitive urban design principles where possible, such as permeable paving and rain gardens, to manage stormwater runoff and reduce localised flooding.

Est. cost: $$$

Learn more

About Coronet Bay's Climate Risk Profile

Coronet Bay, located in Victoria's Bass Coast Shire, presents a mixed climate risk profile for residents. The most significant concern is the moderate to high risk of bushfire, stemming from its location adjacent to substantial areas of native vegetation and its susceptibility to dry, windy conditions typical of the region. While not in an immediate high-risk zone, the potential for ember attack and the proximity of fuel sources necessitate vigilant preparation.

Flood risk in Coronet Bay is generally considered low to moderate. The primary concern relates to localised flooding from intense rainfall events, which can overwhelm drainage systems, particularly in lower-lying areas. While major riverine flooding is unlikely, flash flooding can pose a threat during severe storms. Proximity to minor waterways also contributes to this risk profile.

Heatwaves are an increasing concern across Victoria, and Coronet Bay is no exception. The suburb experiences a moderate risk associated with extreme heat, with projections indicating a rise in the frequency and intensity of heatwave events. This poses risks to vulnerable populations, infrastructure, and local ecosystems. The lack of significant urban heat island effect mitigates this risk somewhat compared to more densely populated areas.

Coastal risks for Coronet Bay are minimal due to its inland position relative to the Bass Strait coastline. While direct inundation from sea-level rise or storm surges is unlikely, extreme weather events could potentially lead to indirect impacts through amplified rainfall or wind effects. The primary coastal influence is the general weather patterns originating from the coast.

Overall, residents of Coronet Bay should prioritise bushfire preparedness, maintain awareness of localised flood risks, and take precautions during heatwave events. While the suburb is not currently facing extreme climate threats, the projected trends suggest a gradual increase in risk across all categories, underscoring the importance of ongoing adaptation and preparedness.

Data sources: Bureau of Meteorology (BOM) · CSIRO · Country Fire Authority (CFA) · State Emergency Service (SES) · Bass Coast Shire Council · Geoscience Australia · Victorian Department of Health

Local Government Resources

Frequently Asked Questions

What is the main climate risk for Coronet Bay?

The primary climate risk for Coronet Bay is bushfire, due to its proximity to significant bushland areas. Flood and heat risks are also present but generally considered lower.

Is Coronet Bay prone to flooding?

Coronet Bay has a low to moderate risk of localised flooding, mainly from heavy rainfall overwhelming drainage systems. It is not typically affected by major riverine flooding.

How will climate change affect Coronet Bay by 2050?

By 2050, under a moderate emissions scenario, Coronet Bay is projected to experience increased bushfire risk and more frequent heatwaves. Flood and coastal risks are expected to rise slightly.

What should I do to prepare for bushfires in Coronet Bay?

Develop a Bushfire Survival Plan, keep your property clear of excess vegetation (defensible space), and stay informed about fire danger ratings and warnings from the CFA.

Does Coronet Bay have a high risk of sea-level rise impacts?

No, Coronet Bay has a low risk of direct sea-level rise impacts as it is located several kilometres inland from the coast.

Where can I find the official flood map for Coronet Bay?

You can find flood information and maps relevant to Coronet Bay on the Bass Coast Shire Council's website, often within their planning scheme or specific flood studies.

Are there specific building requirements for bushfire-prone areas in Coronet Bay?

Yes, properties in designated bushfire-prone areas, including Coronet Bay, must comply with specific building regulations outlined in the Victorian Building Regulations, often related to bushfire attack level (BAL) ratings.

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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