Climate Risk in Macquarie, ACT

macquarie, Australian Capital Territory· UNKNOWN· 2614
Medium Risk
Updated Mar 2026

Macquarie faces increasing risks from heatwaves and potential flash flooding. Bushfire risk is moderate due to proximity to bushland. Residents should prepare for more frequent extreme heat events and potential water restrictions.

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

Macquarie is expected to experience more frequent and intense heatwaves. The urban environment contributes to the urban heat island effect, increasing nighttime temperatures and overall heat stress.

Primary Drivers

  • ·Rising average temperatures
  • ·Urban heat island effect

Projections (RCP8.5)

2030

7.5

2050

8.0

Data source

flood Risk

4.0/10

Macquarie has a moderate risk of flooding, primarily from flash flooding due to intense rainfall and localised overland flow. Some areas are near drainage lines and may be more susceptible.

Primary Drivers

  • ·Increased rainfall intensity
  • ·Urban development increasing runoff

Projections (RCP8.5)

2030

4.5

2050

5.0

Data source

coastal Risk

1.0/10

Macquarie is not exposed to coastal hazards due to its inland location.

Projections (RCP8.5)

2030

1.0

2050

1.0

Data source

bushfire Risk

3.0/10

Macquarie has a low to moderate bushfire risk due to its proximity to bushland areas. While not directly adjacent to dense forests, ember attack is a potential concern during severe fire weather.

Primary Drivers

  • ·Dry vegetation
  • ·Increased frequency of extreme weather events

Projections (RCP8.5)

2030

3.2

2050

3.5

Data source

What This Means for Property Owners

Insurance Outlook

Insurance premiums may increase due to flood and heatwave risks.

Price Impact

Properties in flood-prone areas may experience price stagnation or decline.

Buyer Checklist

  • 1.Check flood maps and insurance costs.
  • 2.Assess property's vulnerability to heatwaves.
  • 3.Review bushfire risk mitigation measures.
  • 4.Consider energy efficiency upgrades.

Local Climate Evidence

Flood Evidence

Nearest Waterway
Lake Ginninderra
Elevation Range
580-620m
Flood Zone
Areas near drainage lines

Local drainage infrastructure may be overwhelmed during intense rainfall events.

View council flood map

Bushfire Evidence

Distance to Bushland
Within 1km
Planning Overlay
ACTmapi
Bushfire Prone Area
Yes

Ember attack is a primary concern due to prevailing winds during bushfire events.

Heat Evidence

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

Urban heat island effect contributes to higher nighttime temperatures.

Coastal Evidence

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

Historical Climate Events

2018
heatwaveModerate

Canberra experienced a prolonged heatwave in January 2018, with temperatures exceeding 40°C for several consecutive days. This put strain on infrastructure and caused heat stress in vulnerable populations.

Source
2020
stormModerate

A severe thunderstorm in January 2020 brought heavy rainfall and strong winds to Canberra, causing flash flooding and property damage in some areas.

Source
2003
bushfireCatastrophic

The 2003 Canberra bushfires had a devastating impact on the region, although Macquarie was not directly impacted, the event highlighted the vulnerability of the region to bushfires.

Source

Climate Outlook to 2050

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

HazardToday20302050
flood4.04.3(+0.3)4.7(+0.7)
bushfire3.03.2(+0.2)3.5(+0.5)
heat7.08.0(+1.0)9.0(+2.0)
coastal1.01.01.0

By 2030, Macquarie is projected to experience a notable increase in heatwave intensity and frequency. Flash flooding risk will also increase due to more intense rainfall events. Bushfire risk will remain relatively stable, but vigilance is still required.

CSIRO Climate Projections

Adaptation Recommendations

Improve home cooling and insulation

Immediate

Install energy-efficient air conditioning and improve insulation to reduce heat stress during heatwaves.

Est. cost: $5,000 - $15,000

Learn more

Upgrade drainage infrastructure

Near-term

Invest in upgrading local drainage infrastructure to manage increased rainfall intensity and reduce flash flooding risk.

Est. cost: $50,000 - $200,000 (per project)

Learn more

Develop a community heatwave plan

Immediate

Create a community-based plan to support vulnerable residents during heatwaves, including cooling centers and outreach programs.

Est. cost: $10,000 - $50,000

Learn more

Maintain vegetation around properties

Near-term

Regularly clear vegetation around properties to reduce bushfire risk and ember attack vulnerability.

Est. cost: $500 - $2,000 (per year)

Learn more

About macquarie's Climate Risk Profile

Macquarie, located in the Australian Capital Territory, is projected to experience a changing climate with increased risks from heatwaves and altered rainfall patterns. The primary concern is the increasing frequency and intensity of heatwaves, which will place stress on vulnerable populations and infrastructure.

Flash flooding is also a concern, as more intense rainfall events are expected. This can lead to localised flooding in low-lying areas and near drainage lines. While the suburb is not directly adjacent to major waterways, overland flow during heavy rainfall can pose a risk.

Bushfire risk is moderate, with the potential for ember attack from nearby bushland areas. Maintaining vegetation around properties and staying informed during fire weather warnings is crucial.

Coastal hazards are not a direct threat to Macquarie due to its inland location. However, broader climate change impacts, such as disruptions to supply chains and economic activity, could indirectly affect the suburb. Residents should stay informed about climate change projections and take steps to adapt to the changing conditions.

Data sources: BOM · CSIRO · ACT Emergency Services Agency · ACT Government Environment, Planning and Sustainable Development Directorate

Local Government Resources

Frequently Asked Questions

What are the main climate change risks for Macquarie?

The main risks are increasing heatwaves and potential flash flooding due to more intense rainfall events. Bushfire risk is moderate.

How will heatwaves affect my health in Macquarie?

Heatwaves can cause heat stress, dehydration, and exacerbate existing health conditions. It's important to stay hydrated, seek air-conditioned environments, and check on vulnerable neighbors.

What can I do to prepare for flash flooding in Macquarie?

Keep drains clear of debris, know your flood risk, and have an emergency plan in place. Consider flood insurance if you live in a low-lying area.

Is my property at risk from bushfires in Macquarie?

Macquarie has a moderate bushfire risk. Maintain vegetation around your property, stay informed during fire weather warnings, and have a bushfire survival plan.

Where can I find more information about climate change in the ACT?

The ACT Government's environment website provides information on climate change strategies, flood maps, and other relevant resources.

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