Climate Risk Profile: St Lucia, QLD

St Lucia, Queensland· Brisbane City· 4067
Medium Risk
Updated Mar 2026

St Lucia faces moderate climate risks, primarily from flooding and heatwaves. The suburb's proximity to the Brisbane River increases its flood vulnerability, while rising temperatures exacerbate heat risks. Coastal risks are minimal.

Overall Risk Score

5.5/100
Medium

Confidence: Medium

Hazard Breakdown

Flood
6.0
Bushfire
3.0
Heat
7.0
Coastal
1.0

Detailed Hazard Analysis

heat Risk

7.0/100

St Lucia experiences high temperatures during summer, with potential for heatwaves. Urban heat island effect can exacerbate the heat risk.

Primary Drivers

  • ·Rising average temperatures
  • ·Increased frequency of heatwaves
  • ·Urbanisation

Projections (RCP8.5)

2030

7.5

2050

8.0

Data source

flood Risk

6.0/100

St Lucia is located near the Brisbane River and has areas susceptible to flooding. Riverine flooding can occur during periods of heavy rainfall.

Primary Drivers

  • ·Increased rainfall intensity
  • ·Rising river levels
  • ·Urban development

Projections (RCP8.5)

2030

6.5

2050

7.0

Data source

coastal Risk

1.0/100

Coastal risk is low in St Lucia due to its location further inland from the immediate coastline. Sea level rise poses a minimal direct threat.

Primary Drivers

  • ·Sea level rise
  • ·Storm surge

Projections (RCP8.5)

2030

1.2

2050

1.5

Data source

bushfire Risk

3.0/100

Bushfire risk in St Lucia is relatively low due to its urban environment and limited vegetation. However, nearby bushland areas can pose a threat during dry periods.

Primary Drivers

  • ·Dry vegetation
  • ·High temperatures
  • ·Wind

Projections (RCP8.5)

2030

3.2

2050

3.5

Data source

What This Means for Property Owners

Insurance Outlook

Insurance premiums may increase in flood-prone areas.

Price Impact

Properties in flood-prone areas may experience price impacts.

Buyer Checklist

  • 1.Check flood maps
  • 2.Assess building resilience to heat
  • 3.Review insurance options
  • 4.Understand local emergency plans

Local Climate Evidence

Flood Evidence

Nearest Waterway
Brisbane River
Elevation Range
5-30 meters
Flood Zone
Varies by location within St Lucia

Some areas of St Lucia are prone to riverine flooding. Check Brisbane City Council flood maps for specific property risk.

View council flood map

Bushfire Evidence

Distance to Bushland
0.5-2 km to nearest bushland
Planning Overlay
Check QFES bushfire prone area maps
Bushfire Prone Area
Yes

While not all of St Lucia is bushfire prone, properties near the Brisbane River and surrounding parks may be at higher risk.

Heat Evidence

Avg January Max Temp
30.5°C
Heat Stress Days/Year
5 days

Expect several days above 30°C in summer. Urban heat island effect can increase temperatures.

Coastal Evidence

Distance to Coast
12 km
Sea Level Rise Exposure
Low
Erosion Risk
Low

Historical Climate Events

2011
floodMajor

The 2011 Brisbane floods inundated parts of St Lucia, causing significant damage.

Source
2013
heatwaveModerate

A prolonged heatwave in January 2013 resulted in increased heat stress in St Lucia.

Source
2022
floodModerate

Severe flooding impacted St Lucia, causing property damage and disruption.

Source

Climate Outlook to 2050

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

HazardToday20302050
flood6.06.5(+0.5)7.0(+1.0)
bushfire3.03.1(+0.1)3.3(+0.3)
heat7.07.4(+0.4)8.5(+1.5)
coastal1.01.01.1(+0.1)

Under a moderate emissions scenario, flood and heat risks are expected to increase moderately by 2030.

CSIRO Climate Projections

Adaptation Recommendations

Improve Flood Defenses

Near-term

Upgrade drainage infrastructure and implement flood barriers to protect properties.

Est. cost: High

Learn more

Implement Heatwave Management Plans

Immediate

Develop and implement heatwave management plans to protect vulnerable populations.

Est. cost: Medium

Learn more

Promote Sustainable Urban Development

Long-term

Encourage green infrastructure and sustainable building practices to reduce urban heat island effect.

Est. cost: High

Learn more

Enhance Bushfire Preparedness

Near-term

Maintain vegetation around properties and prepare bushfire survival plans.

Est. cost: Low

Learn more

About St Lucia's Climate Risk Profile

St Lucia, a suburb of Brisbane, is subject to several climate-related risks that are projected to intensify in the coming decades. The most significant threat is flooding, due to the suburb's location along the Brisbane River. Increased rainfall intensity and rising river levels are expected to increase the frequency and severity of flood events.

Heatwaves pose another substantial risk to St Lucia. Rising average temperatures and the urban heat island effect will lead to more frequent and intense heatwaves, impacting vulnerable populations. Bushfire risk is relatively low but not negligible, particularly in areas near bushland. Coastal risks are minimal due to the suburb's inland location.

Climate change projections indicate that these risks will worsen by 2030 and 2050. Adaptation measures are crucial to mitigate the impacts of climate change on St Lucia. These include improving flood defenses, implementing heatwave management plans, and promoting sustainable urban development.

Residents and property owners should be aware of these risks and take steps to protect themselves and their properties. Staying informed about weather forecasts and emergency warnings is essential. Preparing for potential climate hazards can help minimize the impacts of these events.

Data sources: BOM · CSIRO · QFES · Brisbane City Council

Local Government Resources

Frequently Asked Questions

What are the main climate risks in St Lucia?

The main climate risks in St Lucia are flooding and heatwaves. The suburb is located near the Brisbane River and is susceptible to riverine flooding. Rising temperatures and the urban heat island effect increase the risk of heatwaves.

How can I protect my property from flooding in St Lucia?

You can protect your property from flooding by elevating structures, installing flood barriers, and improving drainage. Check Brisbane City Council flood maps for specific property risk.

What is the urban heat island effect, and how does it affect St Lucia?

The urban heat island effect is the phenomenon where urban areas are significantly warmer than surrounding rural areas due to human activities and infrastructure. This effect can exacerbate heatwaves in St Lucia.

What is Brisbane City Council doing to address climate change in St Lucia?

Brisbane City Council has a climate change adaptation strategy that includes measures to reduce greenhouse gas emissions, improve flood defenses, and manage heatwaves. They also provide resources for residents to prepare for climate hazards.

Where can I find more information about climate change projections for St Lucia?

You can find more information about climate change projections for St Lucia from CSIRO and the Bureau of Meteorology (BOM). These organizations provide data and reports on climate trends and projections for Australia.

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