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Climate Risk in Wynnum, South Australia

Wynnum, South Australia
Medium Risk
Updated Apr 2026

Wynnum, SA, faces a moderate overall climate risk. The primary concerns are flooding and heatwaves, with coastal risks also present. Residents should prepare for increasing temperatures and potential disruptions from extreme weather events.

Overall Risk Score

52/100
Medium

Confidence: Medium

Hazard Breakdown

Flood
6.5
Bushfire
3.0
Heat
6.0
Coastal
5.0

Climate Hazard Breakdown for Wynnum

increasing

Flood

65/100

Wynnum faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Climate change is expected to increase rainfall intensity, exacerbating flood risk.

Key drivers:

  • ·Increased rainfall intensity
  • ·Sea level rise
stable

Bushfire

30/100

The bushfire risk in Wynnum is relatively low due to the lack of extensive bushland areas. However, dry vegetation and strong winds can still pose a threat during the fire season.

Key drivers:

  • ·Dry vegetation
  • ·Strong winds
increasing

Heat

60/100

Wynnum experiences moderate heat risk, with increasing average temperatures and more frequent heatwaves expected due to climate change. This can impact vulnerable populations and infrastructure.

Key drivers:

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

Coastal

50/100

Wynnum faces a moderate coastal risk due to potential sea level rise and coastal erosion. This could impact coastal infrastructure and ecosystems.

Key drivers:

  • ·Sea level rise
  • ·Storm surges
stable

Wind

28/100

Moderate wind risk — gusty northerly winds

stable

Storm

24/100

Moderate storm risk — occasional thunderstorms

stable

Social

21/100

Moderate social stability

increasing

Energy

35/100

Moderate energy costs — summer cooling

In-Depth Climate Risk Guides for Wynnum

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

60/100

Wynnum experiences moderate heat risk, with increasing average temperatures and more frequent heatwaves expected due to climate change. This can impact vulnerable populations and infrastructure.

Primary Drivers

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

Projections (RCP8.5)

2030

6.5

2050

7.0

Data source

flood Risk

65/100

Wynnum faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Climate change is expected to increase rainfall intensity, exacerbating flood risk.

Primary Drivers

  • ·Increased rainfall intensity
  • ·Sea level rise
  • ·Urban development

Projections (RCP8.5)

2030

7.0

2050

7.5

Data source

coastal Risk

50/100

Wynnum faces a moderate coastal risk due to potential sea level rise and coastal erosion. This could impact coastal infrastructure and ecosystems.

Primary Drivers

  • ·Sea level rise
  • ·Storm surges
  • ·Coastal erosion

Projections (RCP8.5)

2030

5.5

2050

6.0

Data source

bushfire Risk

30/100

The bushfire risk in Wynnum is relatively low due to the lack of extensive bushland areas. However, dry vegetation and strong winds can still pose a threat during the fire season.

Primary Drivers

  • ·Dry vegetation
  • ·Strong winds
  • ·Ignition sources

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 climate risks

Price Impact

Property values may be affected by increased climate risks

Buyer Checklist

  • 1.Check flood maps and overlays
  • 2.Assess bushfire risk
  • 3.Consider heat resilience measures
  • 4.Evaluate coastal erosion potential

Local Climate Evidence

Flood Evidence

Nearest Waterway
Local creeks and drainage systems
Elevation Range
Generally low-lying
Flood Zone
Potentially within flood zones

Detailed flood mapping may be available from the local council.

View council flood map

Bushfire Evidence

Distance to Bushland
Variable, some areas near scrubland
Planning Overlay
Check with SA CFS for bushfire prone area overlays
Bushfire Prone Area
Yes

Confirm specific property risk with local authorities.

Heat Evidence

Avg January Max Temp
32°C
Heat Stress Days/Year
3 days

Heatwaves are becoming more frequent and intense.

Coastal Evidence

Distance to Coast
5 km
Sea Level Rise Exposure
Potentially exposed to sea level rise impacts
Erosion Risk
Some areas may be at risk of coastal erosion

Historical Climate Events

2016
floodModerate

Significant rainfall caused localized flooding in parts of South Australia, including areas near Wynnum.

Source
2019
heatwaveModerate

South Australia experienced a prolonged heatwave with record-breaking temperatures.

Source
2020
bushfireMinor

Bushfires impacted some areas of South Australia, although Wynnum was not directly affected, smoke haze was present.

Source
2022
floodModerate

Heavy rainfall events led to flash flooding in parts of South Australia.

Source

Climate Outlook to 2050

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

HazardToday20302050
flood656.8(+0.3)7.2(+0.7)
bushfire303.1(+0.1)3.2(+0.2)
heat606.6(+0.6)7.5(+1.5)
coastal505.2(+0.2)5.5(+0.5)

By 2030, Wynnum is projected to experience a moderate increase in overall climate risk, with heatwaves and flooding posing the greatest challenges.

CSIRO Climate Projections

Adaptation Recommendations

Improve Flood Defenses

Near-term

Invest in flood barriers and drainage improvements to protect properties from rising floodwaters.

Est. cost: Medium

Learn more

Enhance Heat Resilience

Immediate

Implement measures to reduce the urban heat island effect and improve building insulation to protect residents from extreme heat.

Est. cost: Medium

Learn more

Strengthen Coastal Protection

Long-term

Implement coastal protection measures to mitigate the impacts of sea level rise and coastal erosion.

Est. cost: High

Learn more

Community Awareness Programs

Near-term

Educate residents about climate risks and preparedness measures through community workshops and outreach programs.

Est. cost: Low

Learn more

About Wynnum's Climate Risk Profile

Wynnum is a suburb in South Australia that is exposed to several climate-related risks. The most significant risks are flooding, heatwaves, and coastal hazards. Climate change is expected to exacerbate these risks in the coming decades.

Flooding is a concern due to the suburb's proximity to waterways and low-lying areas. Increased rainfall intensity and sea level rise will likely increase the frequency and severity of flood events. This could damage property, disrupt infrastructure, and pose risks to human safety.

Heatwaves are also a growing concern, with average temperatures expected to rise and heatwaves becoming more frequent and intense. This can lead to heat stress, particularly for vulnerable populations such as the elderly and those with chronic health conditions. Infrastructure, such as power grids, may also be strained during extreme heat events.

Coastal risks, including sea level rise and coastal erosion, pose a threat to coastal infrastructure and ecosystems. These risks could impact property values and recreational areas.

Residents and businesses in Wynnum should take steps to prepare for these climate-related risks. This includes implementing flood mitigation measures, improving building resilience to heat, and planning for potential disruptions from extreme weather events.

Data sources: BOM · CSIRO · SA CFS · SA Government Environment and Water

Local Government Resources

UNKNOWN

Flood MapsEmergency Services

Frequently Asked Questions

What are the main climate change risks in Wynnum?

The main climate change risks in Wynnum are flooding, heatwaves, and coastal hazards such as sea level rise and erosion.

How will climate change affect property values in Wynnum?

Increased climate risks may negatively impact property values in Wynnum, particularly for properties located in flood-prone or coastal areas.

What can I do to protect my home from flooding in Wynnum?

You can install flood barriers, improve drainage around your property, and ensure that your home is properly insured against flood damage.

How can I prepare for heatwaves in Wynnum?

Stay hydrated, seek air-conditioned environments, and check on vulnerable neighbors during heatwaves. Improve your home's insulation and consider installing air conditioning.

Where can I find more information about climate change risks in Wynnum?

You can find more information on the South Australian government's environment and emergency services websites, as well as from the Bureau of Meteorology and CSIRO.

Get your property's risk report

This suburb assessment covers the area. For a precise address-level climate risk report for any specific property in Wynnum, use our analysis tool.

Analyse a Property in Wynnum →

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