Climate Risk in Greenmount, Western Australia

Greenmount, Western Australia· UNKNOWN
Medium Risk
Updated Mar 2026

Greenmount faces moderate risks from flooding and heatwaves, and a high risk of bushfires. Climate change is expected to exacerbate these risks, particularly increasing the intensity of rainfall and the frequency of heatwaves and bushfires. Residents should prepare for these increasing threats.

Overall Risk Score

5.2/10
Medium

Confidence: Medium

Hazard Breakdown

Flood
4.5
Bushfire
6.8
Heat
4.2
Coastal
N/A

Detailed Hazard Analysis

heat Risk

4.2/10

Greenmount experiences moderate heat risk, with increasing average temperatures and more frequent heatwaves. This poses a risk to vulnerable populations, especially during summer.

Primary Drivers

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

Projections (RCP8.5)

2030

4.8

2050

5.5

Data source

flood Risk

4.5/10

Greenmount faces a moderate risk of flooding, primarily from heavy rainfall events and local creek overflows. The risk is expected to increase with climate change due to more intense rainfall.

Primary Drivers

  • ·Increased rainfall intensity
  • ·Urban development
  • ·Creek overflow

Projections (RCP8.5)

2030

5.0

2050

5.8

Data source

coastal Risk

0.0/10

Greenmount is not exposed to coastal risks such as sea level rise or coastal erosion due to its inland location.

Projections (RCP8.5)

2030

0.0

2050

0.0

bushfire Risk

6.8/10

Greenmount has a high bushfire risk due to its proximity to bushland areas. Hot, dry summers and strong winds exacerbate the risk. Climate change is projected to increase the frequency and intensity of bushfires.

Primary Drivers

  • ·Proximity to bushland
  • ·Hot and dry summers
  • ·Strong winds
  • ·Increased fuel load

Projections (RCP8.5)

2030

7.2

2050

7.8

Data source

What This Means for Property Owners

Insurance Outlook

Insurance premiums may increase due to the elevated risk of bushfires and flooding.

Price Impact

Properties in high-risk areas may experience a decrease in value.

Buyer Checklist

  • 1.Check flood maps and bushfire prone area designations.
  • 2.Assess property's vulnerability to heatwaves.
  • 3.Review insurance options and potential premium increases.
  • 4.Consider long-term climate projections for the area.

Local Climate Evidence

Flood Evidence

Nearest Waterway
Helena River
Elevation Range
50-150m
Flood Zone
Areas near Helena River are susceptible to flooding.

Historical flood data indicates that properties near the Helena River are most vulnerable.

View council flood map

Bushfire Evidence

Distance to Bushland
Adjacent to bushland areas
Planning Overlay
DFES Bushfire Prone Area Map
Bushfire Prone Area
Yes

The area is designated as a bushfire prone area, requiring specific building standards for new constructions.

Heat Evidence

Avg January Max Temp
32.5°C
Heat Stress Days/Year
3 days

The number of days exceeding 35°C is projected to increase in the coming decades.

Coastal Evidence

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

Historical Climate Events

2010
floodModerate

Heavy rainfall caused localized flooding in Greenmount, particularly affecting properties near the Helena River.

Source
2011
bushfireMinor

A bushfire near Greenmount caused property damage and required evacuations.

Source
2019
heatwaveModerate

A prolonged heatwave in Perth caused heat stress and health concerns for residents in Greenmount.

Source
2022
floodMinor

Heavy rainfall led to minor flooding in low-lying areas of Greenmount.

Source

Climate Outlook to 2050

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

HazardToday20302050
flood4.54.8(+0.3)5.2(+0.7)
bushfire6.87.2(+0.4)7.6(+0.8)
heat4.24.8(+0.6)5.7(+1.5)
coastal0.00.00.0

By 2030, Greenmount is projected to experience a moderate increase in overall climate risk, with notable increases in heatwave frequency and intensity, as well as a higher risk of bushfires and flooding.

CSIRO Climate Projections

Adaptation Recommendations

Improve Drainage Infrastructure

Near-term

Upgrade drainage systems to handle increased rainfall intensity and reduce the risk of flooding.

Est. cost: Medium

Learn more

Implement Bushfire Management Strategies

Immediate

Conduct regular fuel reduction burns and maintain firebreaks to reduce the risk of bushfires.

Est. cost: Medium

Learn more

Develop a Heatwave Response Plan

Near-term

Establish cooling centers and provide support for vulnerable populations during heatwaves.

Est. cost: Low

Learn more

Promote Water Conservation

Long-term

Encourage residents to conserve water to mitigate the impacts of drought and water scarcity.

Est. cost: Low

Learn more

About Greenmount's Climate Risk Profile

Greenmount, Western Australia, is a suburb that faces a range of climate-related risks. The primary concerns are flooding, bushfires, and heatwaves. Its location near bushland increases the bushfire risk, while heavy rainfall events can lead to flooding.

Climate change is projected to intensify these risks. Rising temperatures will lead to more frequent and severe heatwaves, impacting vulnerable populations. Changes in rainfall patterns are expected to increase the intensity of rainfall events, leading to a higher risk of flooding.

The bushfire risk is also expected to increase due to hotter, drier conditions and increased fuel loads. Residents should be aware of these risks and take steps to prepare their properties and families.

Adaptation measures are crucial to mitigate the impacts of climate change in Greenmount. These include improving drainage infrastructure, implementing bushfire management strategies, and providing support for vulnerable populations during heatwaves. Community awareness and preparedness are also essential to building resilience to climate change.

Data sources: BOM · CSIRO · DFES

Local Government Resources

Frequently Asked Questions

What are the main climate change risks in Greenmount?

The main climate change risks in Greenmount are increased flooding, more frequent and intense bushfires, and more severe heatwaves.

How will climate change affect property values in Greenmount?

Properties in high-risk areas, such as those prone to flooding or bushfires, may experience a decrease in value.

What can I do to prepare my property for bushfires?

You can clear vegetation around your home, maintain firebreaks, and ensure you have a bushfire survival plan.

Where can I find information about flood risks in Greenmount?

You can find information about flood risks on the Shire of Mundaring website and the Department of Fire and Emergency Services website.

How can I stay safe during a heatwave in Greenmount?

Stay indoors in air-conditioned environments, drink plenty of water, and avoid strenuous activities during the hottest part of the day.

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