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Climate Risk in Mullewa, Western Australia

Mullewa, Western Australia· 6630
Medium Risk
Updated Mar 2026

Mullewa faces moderate risks from flooding and high risks from bushfires and heatwaves. Climate change is expected to increase the severity of these risks in the future. Coastal risks are negligible due to its inland location.

Overall Risk Score

55/100
Medium

Confidence: Medium

Hazard Breakdown

Flood
4.0
Bushfire
6.0
Heat
7.0
Coastal
1.0

Climate Hazard Breakdown for Mullewa

stable

Flood

40/100

Mullewa faces a moderate risk of flooding, primarily from heavy rainfall events that can cause local rivers and creeks to overflow. The risk is exacerbated by the relatively flat terrain surrounding the town.

Key drivers:

  • ·Heavy rainfall
  • ·Flat terrain
increasing

Bushfire

60/100

Mullewa is located in a region with a high bushfire risk due to the surrounding dry vegetation and hot, dry summers. The risk is further increased by strong winds that can quickly spread fires.

Key drivers:

  • ·Dry vegetation
  • ·Hot summers
increasing

Heat

70/100

Mullewa experiences high temperatures during summer, leading to a significant heat risk. Climate change is expected to increase the frequency and intensity of heatwaves, further exacerbating this risk.

Key drivers:

  • ·High summer temperatures
  • ·Heatwaves
stable

Coastal

10/100

Mullewa is located inland and does not face any direct coastal risks such as sea level rise or coastal erosion.

stable

Wind

32/100

Moderate wind risk — winter storms

stable

Storm

28/100

Moderate storm risk — occasional severe thunderstorms

stable

Social

21/100

Moderate social stability

increasing

Energy

39/100

Moderate energy costs — cooling demand in summer

In-Depth Climate Risk Guides for Mullewa

Should I Buy

Property buying guide with climate risk assessment

Flood Risk

Flood zone mapping, historical events, and projections

Bushfire Risk

BAL assessment, vegetation proximity, and fire history

Climate Safety

Multi-hazard safety assessment to 2050

Storm Risk

Severe weather, hail, and wind risk analysis

Heat Risk

Extreme heat days, urban heat island, and cooling costs

Insurance Costs

Premium estimates and insurance availability

Investment Score

Climate-adjusted property investment analysis

Detailed Hazard Analysis

heat Risk

70/100

Mullewa experiences high temperatures during summer, leading to a significant heat risk. Climate change is expected to increase the frequency and intensity of heatwaves, further exacerbating this risk.

Primary Drivers

  • ·High summer temperatures
  • ·Heatwaves
  • ·Climate change

Projections (RCP4.5)

2030

7.5

2050

8.0

Data source

flood Risk

40/100

Mullewa faces a moderate risk of flooding, primarily from heavy rainfall events that can cause local rivers and creeks to overflow. The risk is exacerbated by the relatively flat terrain surrounding the town.

Primary Drivers

  • ·Heavy rainfall
  • ·Flat terrain
  • ·River overflow

Projections (RCP4.5)

2030

4.5

2050

5.0

Data source

coastal Risk

10/100

Mullewa is located inland and does not face any direct coastal risks such as sea level rise or coastal erosion.

Projections (RCP4.5)

2030

1.0

2050

1.0

Data source

bushfire Risk

60/100

Mullewa is located in a region with a high bushfire risk due to the surrounding dry vegetation and hot, dry summers. The risk is further increased by strong winds that can quickly spread fires.

Primary Drivers

  • ·Dry vegetation
  • ·Hot summers
  • ·Strong winds

Projections (RCP4.5)

2030

6.5

2050

7.0

Data source

What This Means for Property Owners

Insurance Outlook

Insurance premiums may be higher due to bushfire and flood risks.

Price Impact

Property values may be affected by increasing climate risks.

Buyer Checklist

  • 1.Check for flood history
  • 2.Assess bushfire risk mitigation measures
  • 3.Ensure adequate insurance coverage
  • 4.Consider energy efficiency for heatwaves

Local Climate Evidence

Flood Evidence

Nearest Waterway
Mullewa Creek
Elevation Range
300-350m
Flood Zone
Unknown

Local knowledge suggests that flooding is typically localized and occurs after periods of intense rainfall.

View council flood map

Bushfire Evidence

Distance to Bushland
Adjacent
Planning Overlay
DFES Bushfire Prone Area
Bushfire Prone Area
Yes

The area is designated as bushfire prone due to the extensive native vegetation surrounding the town.

Heat Evidence

Avg January Max Temp
38.5°C
Heat Stress Days/Year
5 days

Heat stress is a significant concern for vulnerable populations during the summer months.

Coastal Evidence

Distance to Coast
100 km
Sea Level Rise Exposure
Not Applicable
Erosion Risk
Not Applicable

Historical Climate Events

2010
floodModerate

Heavy rainfall caused flooding in Mullewa, impacting several properties and disrupting local infrastructure.

Source
2011
bushfireModerate

A bushfire near Mullewa threatened the town, requiring emergency services to protect properties and evacuate residents.

Source
2019
heatwaveMajor

Mullewa experienced a prolonged heatwave with record-breaking temperatures, placing significant stress on the community and local infrastructure.

Source
2022
floodMinor

Localized flooding occurred after a period of heavy rainfall, causing minor disruptions to traffic and some property damage.

Source

Climate Outlook to 2050

Projections based on CSIRO and BOM climate modelling. Scenario: RCP4.5

HazardToday20302050
flood404.2(+0.2)4.5(+0.5)
bushfire606.3(+0.3)6.6(+0.6)
heat707.7(+0.7)8.2(+1.2)
coastal101.01.0

By 2030, Mullewa is projected to experience a slight increase in overall climate risk, with notable increases in bushfire and heatwave risks. Flooding risk is expected to remain relatively stable.

CSIRO Climate Projections

Adaptation Recommendations

Implement Bushfire Management Plan

Immediate

Develop and implement a comprehensive bushfire management plan to reduce the risk of bushfires impacting the community.

Est. cost: Medium

Learn more

Develop Heatwave Preparedness Plan

Near-term

Create a heatwave preparedness plan to protect vulnerable populations during periods of extreme heat.

Est. cost: Low

Learn more

Improve Flood Mitigation Measures

Near-term

Implement flood mitigation measures to reduce the impact of flooding on properties and infrastructure.

Est. cost: Medium

Learn more

Promote Water Conservation

Long-term

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

Est. cost: Low

Learn more

About Mullewa's Climate Risk Profile

Mullewa, located in the Mid West region of Western Australia, is exposed to a range of climate-related risks. The primary concerns are bushfires, heatwaves, and flooding. The surrounding landscape consists of dry vegetation, which, combined with hot summers and strong winds, creates a high bushfire risk.

Heatwaves are also a significant concern, with Mullewa experiencing high temperatures during the summer months. Climate change is projected to increase the frequency and intensity of these heatwaves, posing a greater risk to the community.

Flooding is a moderate risk, primarily due to heavy rainfall events that can cause local rivers and creeks to overflow. The flat terrain around Mullewa can exacerbate the impact of flooding.

While coastal risks are minimal due to Mullewa's inland location, the community needs to focus on adaptation strategies to mitigate the impacts of bushfires, heatwaves, and flooding. These strategies should include improved fire management practices, heatwave preparedness plans, and flood mitigation measures.

Data sources: BOM · CSIRO · DFES

Local Government Resources

Shire of Mullewa

Climate StrategyFlood MapsEmergency Services

Frequently Asked Questions

What are the main climate risks facing Mullewa?

The main climate risks facing Mullewa are bushfires, heatwaves, and flooding. These risks are expected to increase in severity due to climate change.

How is the local council addressing climate change?

The Shire of Mullewa is developing strategies to address climate change, including bushfire management plans and flood mitigation measures.

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.

What should I do during a bushfire?

During a bushfire, follow the advice of emergency services, evacuate if necessary, and protect your property as much as possible.

Where can I find information about flood risks in Mullewa?

Information about flood risks in Mullewa can be found on the Shire of Mullewa website and from the Bureau of Meteorology.

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