Climate Risk Assessment for Bass, Victoria

Bass, Victoria· Bass Coast Shire Council· 3991
Medium Risk
Updated June 2026

Bass faces a medium overall climate risk, with bushfire posing the most significant threat due to its location in a fire-prone area. While flood and heat risks are moderate and increasing, coastal hazards are minimal. Proactive adaptation is recommended to mitigate future impacts.

Overall Risk Score

45/100
Medium

Confidence: Medium

Hazard Breakdown

Flood
3.5
Bushfire
5.0
Heat
4.0
Coastal
1.0

Climate Hazard Breakdown for Bass

increasing

Flood

35/100

Bass has a medium risk of flooding, primarily from localised heavy rainfall events and potential overland flow paths. While not directly on a major river, the low-lying nature of some areas and proximity to smaller creeks contribute to this risk.

Key drivers:

  • ·Increased intensity of rainfall events
  • ·Urbanisation leading to increased runoff
increasing

Bushfire

50/100

Bass is situated in a high bushfire risk area, with significant surrounding vegetation and a history of fire events. The risk is amplified during hot, dry, and windy conditions.

Key drivers:

  • ·Longer and more intense fire seasons
  • ·Increased fuel loads
increasing

Heat

40/100

Bass experiences a medium risk from heatwaves, with a notable increase in the frequency and intensity of extreme heat days. This is exacerbated by its rural setting and potential for heat island effects in built-up areas.

Key drivers:

  • ·Rising average temperatures
  • ·More frequent and severe heatwaves
stable

Coastal

10/100

Bass has a very low risk of coastal hazards, being located inland from the immediate coastline. While sea level rise is a statewide concern, its direct impact on Bass is minimal.

Key drivers:

  • ·Minimal direct exposure to coastal erosion
  • ·Significant distance from the sea
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 Bass

Detailed Hazard Analysis

heat Risk

40/100

Bass experiences a medium risk from heatwaves, with a notable increase in the frequency and intensity of extreme heat days. This is exacerbated by its rural setting and potential for heat island effects in built-up areas.

Primary Drivers

  • ·Rising average temperatures
  • ·More frequent and severe heatwaves
  • ·Reduced diurnal temperature variation

Projections (RCP 4.5)

2030

4.5

2050

5.5

Data source

flood Risk

35/100

Bass has a medium risk of flooding, primarily from localised heavy rainfall events and potential overland flow paths. While not directly on a major river, the low-lying nature of some areas and proximity to smaller creeks contribute to this risk.

Primary Drivers

  • ·Increased intensity of rainfall events
  • ·Urbanisation leading to increased runoff
  • ·Changes in land use

Projections (RCP 4.5)

2030

4.0

2050

4.8

Data source

coastal Risk

10/100

Bass has a very low risk of coastal hazards, being located inland from the immediate coastline. While sea level rise is a statewide concern, its direct impact on Bass is minimal.

Primary Drivers

  • ·Minimal direct exposure to coastal erosion
  • ·Significant distance from the sea

Projections (RCP 4.5)

2030

1.1

2050

1.2

Data source

bushfire Risk

50/100

Bass is situated in a high bushfire risk area, with significant surrounding vegetation and a history of fire events. The risk is amplified during hot, dry, and windy conditions.

Primary Drivers

  • ·Longer and more intense fire seasons
  • ·Increased fuel loads
  • ·Drier vegetation conditions

Projections (RCP 8.5)

2030

5.5

2050

6.5

Data source

What This Means for Property Owners

Insurance Outlook

Moderate to High premiums expected due to bushfire risk. Flood insurance may be necessary in specific low-lying areas.

Price Impact

Potential negative impact on property values in high-risk zones, particularly for bushfire-prone areas. Increased demand for resilient properties.

Buyer Checklist

  • 1.Review CFA bushfire risk maps
  • 2.Check council flood overlay maps
  • 3.Assess property's bushfire attack level (BAL)
  • 4.Inquire about past flood events
  • 5.Verify emergency access routes
  • 6.Consider proximity to vegetation
  • 7.Check insurance availability and cost

Local Climate Evidence

Flood Evidence

Nearest Waterway
Various small creeks and drainage lines
Elevation Range
10-50 meters above sea level
Flood Zone
Limited localised flood zones identified in planning overlays

Risk is primarily from flash flooding and overland flow rather than riverine flooding.

View council flood map

Bushfire Evidence

Distance to Bushland
Adjacent to significant bushland and rural vegetation
Planning Overlay
Designated Bushfire Prone Area
Bushfire Prone Area
Yes

High fuel loads in surrounding areas increase risk during fire seasons.

Heat Evidence

Avg January Max Temp
26.5°C
Heat Stress Days/Year
5 days

Increasing trend in extreme heat days, particularly during summer months. BOM data indicates rising average temperatures.

Coastal Evidence

Distance to Coast
15 km
Sea Level Rise Exposure
Very Low
Erosion Risk
Very Low

Historical Climate Events

2009
bushfireMajor

The Black Saturday bushfires impacted areas surrounding Bass, highlighting the significant bushfire risk in the region. While Bass itself may have been spared the worst, nearby communities suffered extensive damage and loss of life.

Source
2011
floodModerate

Significant rainfall led to localised flooding in parts of the Bass Coast Shire, including areas near Bass. Overland flows and overwhelmed drainage systems caused disruptions.

Source
2016
heatwaveMajor

Victoria experienced a severe heatwave with prolonged periods of extreme temperatures. Bass, like much of the state, would have been affected by high temperatures, posing risks to health and infrastructure.

Source
2019
bushfireModerate

Several grass fires occurred in the region during the warmer months, demonstrating the ongoing bushfire threat. While not as severe as 2009, these events required significant response from fire services.

Source

Climate Outlook to 2050

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

HazardToday20302050
flood353.8(+0.3)4.3(+0.8)
bushfire505.5(+0.5)6.5(+1.5)
heat404.4(+0.4)5.2(+1.2)
coastal101.1(+0.1)1.2(+0.2)

By 2030, Bass is projected to experience a moderate increase in overall climate risk. Bushfire and heat risks are expected to rise notably due to more extreme weather patterns. Flood risk will also increase slightly, while coastal risks remain minimal.

CSIRO Climate Projections

Adaptation Recommendations

Strengthen Bushfire Preparedness

Immediate

Develop and maintain defendable space around properties, create and practice household bushfire survival plans, and ensure adequate water storage for firefighting.

Est. cost: $500 - $5,000+

Learn more

Improve Stormwater Management

Near-term

Implement strategies to manage increased rainfall intensity, such as permeable paving, rain gardens, and maintaining existing drainage infrastructure to reduce localised flooding.

Est. cost: $1,000 - $10,000+

Learn more

Enhance Heat Resilience

Near-term

Plant shade trees, improve building insulation, and create community cooling centres or shaded public spaces to mitigate the impacts of extreme heat.

Est. cost: $500 - $5,000+

Learn more

Community Education and Awareness

Near-term

Conduct regular workshops and information sessions on climate risks, preparedness measures, and available support services for residents.

Est. cost: $200 - $2,000

Learn more

Review and Update Emergency Plans

Long-term

Ensure local council and emergency service plans are regularly reviewed and updated to reflect the latest climate projections and potential risks.

Est. cost: Operational Cost

Learn more

About Bass's Climate Risk Profile

Bass, located within the Bass Coast Shire in Victoria, is a rural township with a growing population. Its geographical setting presents a mixed climate risk profile, with bushfire being the most prominent concern. The surrounding natural landscape, while beautiful, also contributes to a heightened risk during the fire season, necessitating vigilance and preparedness from residents and authorities.

The township experiences moderate risks associated with flooding, primarily driven by intense rainfall events that can overwhelm local drainage systems and create overland flow paths. While Bass is not situated on a major river system, the topography and land use patterns can exacerbate localised flooding, particularly in lower-lying areas. The increasing intensity of rainfall due to climate change suggests this risk may grow over time.

Heatwaves are another growing concern for Bass. As average temperatures rise and the frequency of extreme heat days increases, the community faces greater risks of heat-related illnesses and increased strain on infrastructure. The rural nature of the area means that heat island effects might be less pronounced than in major cities, but the lack of widespread cooling infrastructure can still pose challenges during prolonged heat events.

Coastal hazards, such as sea-level rise and coastal erosion, represent a minimal risk for Bass itself. The suburb is situated a considerable distance inland from the coast, significantly mitigating direct exposure to these phenomena. However, broader coastal management strategies in the region remain important for the overall resilience of the Bass Coast Shire.

Given these risks, Bass is increasingly focusing on climate adaptation and resilience. This includes enhancing bushfire preparedness, improving stormwater management, and developing strategies to cope with extreme heat. Community engagement and robust local governance are key to ensuring the long-term safety and sustainability of Bass in the face of a changing climate.

Data sources: Bureau of Meteorology (BOM) · CSIRO · Country Fire Authority (CFA) · Emergency Management Victoria (EMV) · Bass Coast Shire Council · Geoscience Australia

Local Government Resources

Frequently Asked Questions

What is the main bushfire risk for Bass residents?

The main bushfire risk stems from the surrounding grasslands and bushland, which can ignite and spread rapidly during hot, dry, and windy conditions. Residents should consult the CFA website for specific risk ratings and preparedness advice.

How likely is flooding in Bass?

Flooding in Bass is typically localised and associated with intense rainfall events causing overland flows. While not a major riverine flood risk, certain low-lying areas may be more susceptible. Check the Bass Coast Shire Council planning maps for specific flood overlays.

Will climate change make Bass hotter?

Yes, climate change projections indicate that Bass, like the rest of Victoria, will experience hotter summers with more frequent and intense heatwaves. This increases the risk of heat-related illnesses and strain on infrastructure.

Does Bass face any sea level rise risk?

Bass is located a significant distance inland from the coast, so direct risks from sea level rise and coastal erosion are considered very low. Broader coastal management in the region is still important, however.

What should I do to prepare my property for bushfire season in Bass?

Key preparations include creating defendable space around your home, having a well-practiced bushfire survival plan, ensuring adequate water supplies, and staying informed about fire danger ratings through the CFA.

Where can I find official flood information for Bass?

Official flood information, including flood maps and planning overlays, can be found on the Bass Coast Shire Council's website under their planning and environment sections.

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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