Is Mannum, SA Climate Safe? 2026 Assessment
Climate Safety Score
5.2/10Moderate climate risk — address-specific
Key Facts
- Climate Safety
- Medium
- Flood
- Mannum faces a moderate risk of flooding due to its proximity to the Murray River. Riverine flooding can inundate low-lying areas.
- Bushfire
- The risk of bushfire in Mannum is relatively low compared to other regions in South Australia, but still present due to surrounding vegetation.
- Heat
- Mannum experiences high temperatures during summer, increasing the risk of heatwaves and heat stress for vulnerable populations.
- Storm
- Moderate storm risk — occasional severe thunderstorms
- Postcode
- 5238
- Highest high-risk exposure
- 16.3% of land (bushfire)
Climate Safety Analysis
Mannum 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 Mannum's climate safety include heat, flood. 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 Mannum 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 Mannum including address-level hazard mapping, insurance outlook, and adaptation recommendations, use the ClimateNest full analysis tool.
Mannum (postcode 5238) 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 bushfire (16.3% of land in high-risk zones), surface flood (6.6% of land in high-risk zones), extreme wind (4.9% of land in high-risk zones). Exposure is not uniform across Mannum — 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
Significant flooding along the Murray River impacted Mannum, causing property damage and disruptions.
Record-breaking temperatures were experienced across South Australia, including Mannum, leading to heat stress and health concerns.
The Millennium Drought severely impacted water levels in the Murray River, affecting agriculture and the local economy.
The 1956 Murray River flood was one of the largest on record, inundating many properties in Mannum.
Adaptation & Mitigation Actions
Improve Flood Defenses
Near-termInvest in levees and other flood protection measures to protect properties from riverine flooding.
Est. cost: High
Develop Heat Action Plan
ImmediateImplement a heat action plan to protect vulnerable residents during heatwaves, including cooling centers and community outreach programs.
Est. cost: Medium
Enhance Water Management
Long-termImplement water-efficient practices and explore alternative water sources to mitigate the impacts of drought.
Est. cost: Medium
Community Awareness Programs
Near-termEducate residents about climate risks and adaptation measures through community workshops and online resources.
Est. cost: Low
Council & Emergency Services
Explore Mannum Risk Reports
View other climate risk assessments for Mannum:
Frequently Asked Questions
Is Mannum safe from climate change?
No location in Australia is entirely immune to climate change impacts. Mannum 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 Mannum?
The dominant hazard for Mannum 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 Mannum 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 Mannum?
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 Mannum?
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 Mannum.
What share of Mannum is exposed to high bushfire risk?
ClimateNest's hazard overlay maps 16.3% of Mannum in high-risk zones for bushfire, with a further 76.4% 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 Mannum Safe from Climate Risk?
Enter your address below for an instant climate risk assessment for Mannum, 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