Is Marion, SA Climate Safe? 2026 Assessment
Climate Safety Score
5.2/10Moderate climate risk — address-specific
Key Facts
- Climate Safety
- Medium
- Flood
- Marion faces a moderate risk of flooding, primarily from heavy rainfall events and stormwater runoff. The Patawalonga River and other local creeks can contribute to localized flooding.
- Bushfire
- The risk of bushfire in Marion is relatively low due to its urbanized environment. However, areas near parks and reserves may experience some risk during extreme heat and dry conditions.
- Heat
- Marion is susceptible to heatwaves, with increasing average temperatures and more frequent extreme heat days. This poses a risk to vulnerable populations, especially during summer.
- Storm
- Moderate storm risk — occasional severe thunderstorms
- Postcode
- 5043
- Highest high-risk exposure
- 11.1% of land (surface flood)
Climate Safety Analysis
Marion in South Australia has an overall climate safety rating of Medium. This multi-hazard assessment combines flood, bushfire, heat, coastal, and storm risk data with climate projections to 2050 from CSIRO and the Bureau of Meteorology.
Key factors affecting Marion's climate safety include heat, coastal. Each hazard is assessed independently and combined for an overall picture. Australia has warmed by approximately 1.5 °C since 1910, with flow-on effects to fire weather, extreme rainfall, and heatwave frequency.
Climate safety for property in Marion is not uniform — it varies by address. Factors such as elevation, distance to waterways, proximity to bushland, and local drainage all influence actual risk at a specific property. Two nearby properties can have materially different risk profiles.
For a complete property-specific climate safety report for Marion including address-level hazard mapping, insurance outlook, and adaptation recommendations, use the ClimateNest full analysis tool.
Marion (postcode 5043) is tracked in ClimateNest's suburb hazard model, which maps the share of the suburb's land exposed to each hazard at high and moderate levels. The suburb's highest high-risk exposures are surface flood (11.1% of land in high-risk zones), bushfire (6.1% of land in high-risk zones), coastal inundation (3.7% of land in high-risk zones). Exposure is not uniform across Marion — individual properties can sit well above or below these averages, so an address-level check is recommended before buying, selling or insuring.
Local Hazard Evidence
Historical Events
Record high temperatures were recorded across Adelaide, including Marion, leading to increased demand on emergency services.
Heavy rainfall caused localized flooding in low-lying areas of Marion.
A prolonged heatwave resulted in heat stress and health concerns for vulnerable residents.
A severe storm caused flash flooding and property damage in parts of Marion.
Adaptation & Mitigation Actions
Upgrade Stormwater Infrastructure
Near-termInvest in upgrading stormwater drainage systems to handle increased rainfall intensity and reduce the risk of flooding.
Est. cost: High
Increase Green Spaces
ImmediatePlant more trees and create green spaces to reduce the urban heat island effect and provide shade during heatwaves.
Est. cost: Medium
Implement Coastal Protection Measures
Long-termConstruct seawalls and implement other coastal protection measures to mitigate the impacts of sea level rise and coastal erosion.
Est. cost: Very High
Develop a Heat Action Plan
ImmediateCreate a heat action plan to protect vulnerable populations during heatwaves, including establishing cooling centers and providing public health advice.
Est. cost: Low
Council & Emergency Services
Explore Marion Risk Reports
View other climate risk assessments for Marion:
Frequently Asked Questions
Is Marion safe from climate change?
No location in Australia is entirely immune to climate change impacts. Marion has an overall Medium climate risk rating. Understanding the specific hazards at your property address — not just the suburb average — provides the most reliable risk picture.
Which climate hazard poses the biggest risk in Marion?
The dominant hazard for Marion depends on geography and local environment. Proximity to waterways elevates flood risk, while proximity to bushland increases bushfire risk. ClimateNest's multi-hazard analysis identifies the highest-risk hazards for any specific address.
How does Marion compare to nearby suburbs for climate safety?
Nearby suburbs may have different climate risk profiles depending on elevation, vegetation cover, drainage patterns, and land use. ClimateNest allows comparison of climate safety scores across South Australia suburbs.
Should I be concerned about buying property in Marion?
Climate risk should be one factor in your decision, alongside price, location, and amenity. An informed buyer understands the specific risks at a property address and factors insurance costs and climate projections into their assessment of long-term value.
What climate projections should I know for Marion?
Key projections for South Australia from CSIRO include increased average temperatures, more frequent hot days, changes in rainfall seasonality, longer fire seasons, and potential increases in extreme rainfall intensity. These trends inform the long-term outlook for Marion.
What share of Marion is exposed to high surface flood risk?
ClimateNest's hazard overlay maps 11.1% of Marion in high-risk zones for surface flood, with a further 64.5% in moderate-risk zones. Suburb-level exposure is not uniform — individual properties can differ from these averages, so an address-level check is recommended.
Is Marion Safe from Climate Risk?
Enter your address below for an instant climate risk assessment for Marion, South Australia, covering flood, bushfire, sea level rise and more.
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Full report from A$69 · Australian addresses only · 8 hazard scores · Insurance trajectory · 2030 & 2050 projections