Climate Risk in Mount Gambier, SA

Mount Gambier, South Australia· UNKNOWN· 5290
Medium Risk
Updated Mar 2026

Mount Gambier faces moderate risks from flooding and heatwaves, with bushfire risk also present. Climate change is projected to increase the severity and frequency of heatwaves, while flood risk remains relatively stable. Coastal risks are minimal due to its inland location.

Overall Risk Score

5.5/10
Medium

Confidence: Medium

Hazard Breakdown

Flood
6.0
Bushfire
4.0
Heat
6.0
Coastal
1.0

Detailed Hazard Analysis

heat Risk

6.0/10

Mount Gambier experiences a moderate risk from heatwaves, with increasing average temperatures and more frequent heat stress events projected. Vulnerable populations are at higher risk.

Primary Drivers

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

Projections (RCP8.5)

2030

7.0

2050

8.0

Data source

flood Risk

6.0/10

Mount Gambier faces a moderate risk of flooding, primarily from heavy rainfall events and localised stormwater runoff. The flat terrain in parts of the city can exacerbate flooding.

Primary Drivers

  • ·Heavy rainfall
  • ·Stormwater runoff
  • ·Flat terrain

Projections (RCP8.5)

2030

6.5

2050

7.0

Data source

coastal Risk

1.0/10

Mount Gambier is located inland and does not face a direct risk from coastal hazards such as sea level rise or coastal erosion.

Projections (RCP8.5)

2030

1.0

2050

1.0

Data source

bushfire Risk

4.0/10

The risk of bushfire in Mount Gambier is moderate, with surrounding bushland posing a potential threat during dry and windy conditions. Grassfires can also be a concern.

Primary Drivers

  • ·Dry vegetation
  • ·Windy conditions
  • ·Grassfires

Projections (RCP8.5)

2030

4.5

2050

5.0

Data source

What This Means for Property Owners

Insurance Outlook

Insurance premiums may increase due to flood and bushfire risks.

Price Impact

Properties in flood-prone areas may experience price reductions.

Buyer Checklist

  • 1.Check flood maps and insurance costs.
  • 2.Assess bushfire risk and property protection measures.
  • 3.Consider energy efficiency for heatwave resilience.

Local Climate Evidence

Flood Evidence

Nearest Waterway
Blue Lake
Elevation Range
150-200m
Flood Zone
Areas near Blue Lake and low-lying areas

Local drainage systems are being upgraded to mitigate flood risk.

View council flood map

Bushfire Evidence

Distance to Bushland
Adjacent to pine forests and scrubland
Planning Overlay
CFS Bushfire Prone Area Map
Bushfire Prone Area
Yes

Regular fuel reduction burns are conducted in surrounding areas.

Heat Evidence

Avg January Max Temp
28.5°C
Heat Stress Days/Year
3 days

Cooler summers compared to northern SA, but heatwaves are still a concern.

Coastal Evidence

Distance to Coast
20 km
Sea Level Rise Exposure
Not applicable
Erosion Risk
Not applicable

Historical Climate Events

2011
floodModerate

Heavy rainfall caused localised flooding in Mount Gambier, affecting residential and commercial properties.

Source
2013
bushfireMinor

A grassfire near Mount Gambier threatened properties but was quickly contained by fire services.

Source
2019
heatwaveModerate

Mount Gambier experienced a prolonged heatwave with temperatures exceeding 40°C, leading to increased hospital admissions.

Source
2023
floodMinor

Heavy rainfall caused flash flooding in low-lying areas of Mount Gambier, disrupting traffic and causing minor property damage.

Source

Climate Outlook to 2050

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

HazardToday20302050
flood6.06.2(+0.2)6.5(+0.5)
bushfire4.04.3(+0.3)4.5(+0.5)
heat6.07.0(+1.0)8.5(+2.5)
coastal1.01.01.0

By 2030, Mount Gambier is projected to experience a notable increase in heatwave intensity and frequency, with a slight increase in bushfire risk. Flood risk remains relatively stable. Coastal risks remain minimal.

CSIRO Climate Projections

Adaptation Recommendations

Upgrade stormwater drainage

Near-term

Improve drainage infrastructure to reduce flood risk during heavy rainfall events.

Est. cost: Medium

Learn more

Implement bushfire management plan

Near-term

Develop and implement a comprehensive bushfire management plan, including fuel reduction and community education.

Est. cost: Medium

Learn more

Develop heatwave preparedness plan

Immediate

Create a heatwave preparedness plan to protect vulnerable populations, including cooling centers and public awareness campaigns.

Est. cost: Low

Learn more

Promote water conservation

Long-term

Encourage water conservation measures to reduce water stress during periods of drought and heatwaves.

Est. cost: Low

Learn more

Improve building standards

Long-term

Update building codes to improve resilience to heatwaves and bushfires, including insulation and fire-resistant materials.

Est. cost: High

Learn more

About Mount Gambier's Climate Risk Profile

Mount Gambier, located in South Australia, is subject to a range of climate-related risks. Flooding is a primary concern, particularly during periods of heavy rainfall, which can overwhelm local drainage systems and cause property damage. The relatively flat terrain in some areas exacerbates this risk, leading to increased water accumulation.

Bushfire risk is also present, with surrounding bushland posing a threat during dry and windy conditions. Grassfires can spread rapidly, endangering properties and lives. Effective bushfire management and community preparedness are crucial for mitigating this risk.

Heatwaves are becoming more frequent and intense, posing a significant health risk to vulnerable populations, including the elderly and those with pre-existing medical conditions. Rising average temperatures and the urban heat island effect contribute to this increasing risk.

While Mount Gambier is located inland, coastal hazards are not a significant concern. However, the broader region may experience indirect impacts from climate change, such as changes in rainfall patterns and agricultural productivity.

Addressing these climate risks requires a multi-faceted approach, including improved stormwater management, bushfire mitigation strategies, heatwave preparedness plans, and community education programs. By taking proactive measures, Mount Gambier can enhance its resilience to the impacts of climate change.

Data sources: BOM · CSIRO · CFS · SES · City of Mount Gambier

Local Government Resources

Frequently Asked Questions

What are the main climate change risks in Mount Gambier?

The main climate change risks in Mount Gambier are flooding, bushfires, and heatwaves. These risks are projected to increase in severity and frequency in the future.

How is the council addressing climate change?

The City of Mount Gambier is developing and implementing climate adaptation strategies to mitigate the impacts of climate change, including upgrading stormwater drainage and promoting water conservation.

What can residents do to prepare for heatwaves?

Residents can prepare for heatwaves by staying hydrated, seeking air-conditioned environments, and checking on vulnerable neighbors and family members.

What should I do during a bushfire?

During a bushfire, follow the instructions of emergency services, evacuate if necessary, and protect your property by clearing vegetation and having a bushfire survival plan.

Where can I find information about flood risks in Mount Gambier?

Information about flood risks in Mount Gambier can be found on the City of Mount Gambier website and the South Australian State Emergency Service website.

Are there any government grants available for climate resilience measures?

Government grants may be available for climate resilience measures such as installing rainwater tanks or improving home insulation. Check the relevant state and federal government websites for current grant opportunities.

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