Climate Risk in Balcatta, Western Australia

Balcatta, Western Australia· City of Stirling· 6021
Medium Risk
Updated Mar 2026

Balcatta faces moderate climate risks, primarily related to increasing heat and potential flooding. While bushfire and coastal risks are lower, the suburb should prepare for more frequent and intense heatwaves. Residents should stay informed about emergency plans and take steps to mitigate heat exposure.

Overall Risk Score

5.5/10
Medium

Confidence: Medium

Hazard Breakdown

Flood
4.0
Bushfire
3.0
Heat
7.0
Coastal
1.0

Detailed Hazard Analysis

heat Risk

7.0/10

Balcatta is experiencing increasing average temperatures and more frequent heatwaves, posing a significant risk to vulnerable populations.

Primary Drivers

  • ·Rising global temperatures
  • ·Urban heat island effect

Projections (RCP8.5)

2030

7.5

2050

8.0

Data source

flood Risk

4.0/10

Balcatta faces a moderate risk of flooding, primarily from heavy rainfall events and localized drainage issues. Some areas are susceptible to flash flooding.

Primary Drivers

  • ·Increased rainfall intensity
  • ·Urban development reducing permeable surfaces

Projections (RCP4.5)

2030

4.5

2050

5.0

Data source

coastal Risk

1.0/10

Coastal risks are minimal in Balcatta due to its distance from the coastline.

Primary Drivers

  • ·Sea level rise

Projections (RCP4.5)

2030

1.0

2050

1.2

Data source

bushfire Risk

3.0/10

Bushfire risk in Balcatta is relatively low due to its urbanized nature, but proximity to parks and reserves poses some threat.

Primary Drivers

  • ·Dry vegetation in surrounding areas
  • ·Potential for increased fire weather

Projections (RCP4.5)

2030

3.2

2050

3.5

Data source

What This Means for Property Owners

Insurance Outlook

Insurance premiums may increase in the future due to climate-related risks.

Price Impact

Properties in areas prone to flooding or heat stress may experience a decrease in value.

Buyer Checklist

  • 1.Check flood maps and drainage plans.
  • 2.Assess the property's vulnerability to heat stress.
  • 3.Consider the potential impact of climate change on insurance premiums.
  • 4.Review emergency preparedness plans.

Local Climate Evidence

Flood Evidence

Nearest Waterway
Herdsman Lake
Elevation Range
20-40 meters
Flood Zone
Localized areas near drainage lines

Some properties in lower-lying areas may be susceptible to flash flooding during heavy rainfall events.

View council flood map

Bushfire Evidence

Distance to Bushland
Within 1km of Star Swamp Bushland Reserve
Planning Overlay
DFES Bushfire Prone Areas Map
Bushfire Prone Area
Yes

Properties adjacent to or near bushland areas should maintain firebreaks and clear vegetation.

Heat Evidence

Avg January Max Temp
31.5°C
Heat Stress Days/Year
5 days

The urban heat island effect can increase temperatures by several degrees in built-up areas.

Coastal Evidence

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

Historical Climate Events

2010
stormModerate

A severe storm caused localized flooding and power outages in Balcatta.

Source
2011
floodMinor

Heavy rainfall led to flash flooding in some areas of Balcatta.

Source
2015
heatwaveModerate

A prolonged heatwave resulted in increased demand for electricity and strain on public health services.

Source
2022
floodModerate

Significant rainfall event caused localized flooding and disruptions to traffic.

Source

Climate Outlook to 2050

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

HazardToday20302050
flood4.04.2(+0.2)4.5(+0.5)
bushfire3.03.1(+0.1)3.3(+0.3)
heat7.07.8(+0.8)8.5(+1.5)
coastal1.01.01.1(+0.1)

By 2030, Balcatta is projected to experience a moderate increase in overall climate risk, primarily driven by rising temperatures and more frequent heatwaves. Flooding risk may also increase slightly due to more intense rainfall events.

CSIRO Climate Projections

Adaptation Recommendations

Improve drainage infrastructure

Near-term

Upgrade drainage systems to handle more intense rainfall events and reduce the risk of flooding.

Est. cost: Medium

Learn more

Implement heatwave early warning system

Immediate

Develop a system to alert residents of impending heatwaves and provide guidance on how to stay safe.

Est. cost: Low

Learn more

Promote water conservation

Long-term

Encourage residents and businesses to conserve water through education and incentives.

Est. cost: Low

Learn more

Plant more trees and vegetation

Near-term

Increase tree cover to reduce the urban heat island effect and provide shade.

Est. cost: Medium

Learn more

Develop community emergency plans

Immediate

Create plans to help residents prepare for and respond to climate-related emergencies such as floods and heatwaves.

Est. cost: Low

Learn more

About Balcatta's Climate Risk Profile

Balcatta, a suburb of Perth, Western Australia, is increasingly vulnerable to the impacts of climate change. Rising average temperatures and more frequent heatwaves pose a significant threat to public health, particularly for vulnerable populations such as the elderly and those with pre-existing medical conditions. The urban heat island effect exacerbates these risks, leading to higher temperatures in built-up areas.

Flooding is another concern for Balcatta, with heavy rainfall events and localized drainage issues contributing to a moderate flood risk. While the suburb is not directly on the coast, changes in sea levels and storm patterns could indirectly affect the region. Bushfire risk is relatively low due to the urbanized nature of Balcatta, but the presence of parks and reserves nearby means that residents should remain vigilant during the fire season.

Climate projections indicate that these risks will continue to increase in the coming decades. By 2030 and 2050, Balcatta is expected to experience even higher average temperatures, more frequent heatwaves, and potentially more intense rainfall events. These changes could have significant implications for infrastructure, property values, and the overall quality of life in the suburb.

To address these challenges, it is essential for residents, businesses, and local authorities to take proactive steps to adapt to the changing climate. This includes implementing measures to reduce greenhouse gas emissions, improving drainage infrastructure, promoting water conservation, and developing emergency preparedness plans. By working together, the community can build a more resilient and sustainable future for Balcatta.

Data sources: BOM · CSIRO · DFES · City of Stirling

Local Government Resources

Frequently Asked Questions

What are the main climate risks facing Balcatta?

The main climate risks facing Balcatta are increasing heatwaves and potential flooding from heavy rainfall events. Bushfire risk is relatively low, but residents should still be aware of the potential for fires in nearby parks and reserves.

How will climate change affect property values in Balcatta?

Properties in areas prone to flooding or heat stress may experience a decrease in value. It is important to check flood maps and assess a property's vulnerability to heat before buying.

What is the City of Stirling doing to address climate change?

The City of Stirling is implementing a range of measures to reduce greenhouse gas emissions and adapt to the impacts of climate change. These include improving drainage infrastructure, promoting water conservation, and planting more trees.

How can I prepare for a heatwave in Balcatta?

To prepare for a heatwave, stay indoors in air-conditioned buildings, drink plenty of water, and avoid strenuous activity. Check on elderly neighbors and family members who may be more vulnerable to heat stress.

Where can I find information about flood risks in Balcatta?

You can find information about flood risks on the City of Stirling website and the Department of Fire and Emergency Services website. These websites provide flood maps and guidance on how to prepare for a flood.

What should I do during a flood in Balcatta?

During a flood, stay away from floodwaters. If you are in a building that is flooding, move to higher ground. Listen to the radio or television for updates and instructions from emergency services.

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