What the mapping shows for Wynnum
Part of Wynnum is mapped as subject to coastal inundation.
6.6% of Wynnum is mapped as part of the Queensland coastal management district (coastal management district declared under the Coastal Management Act 2016)
Queensland Coastal Management District, State of Queensland (Department of Environment, Tourism, Science and Innovation), Creative Commons Attribution 4.0, retrieved 2026-10-23
This is a share of the suburb's land area from a published state dataset, not an assessment of any property. A ClimateNest report scores the individual address across eight hazards, with insurance and value projections to 2050.
Check an address in Wynnum →Flood Risk in Wynnum, QLD: 2026 Assessment
6.6% of Wynnum is mapped as part of the Queensland coastal management district (coastal management district declared under the Coastal Management Act 2016)
That figure covers the suburb. Check whether your address is inside it - address-level, sourced, A$49.
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Flood Risk Score
Not assessedWynnum faces a notable flood risk due to its low-lying coastal location and proximity to waterways. Heavy rainfall events can lead to stormwater and riverine flooding.
Key Facts
- Flood Risk
- Wynnum faces a notable flood risk due to its low-lying coastal location and proximity to waterways. Heavy rainfall events can lead to stormwater and riverine flooding.
- Trend
- increasing
- Suburb
- Wynnum, QLD
- Overall Risk
- Medium
- Postcode
- 4178
Flood Risk Analysis
Wynnum, located in Queensland, has a location-specific flood risk profile based on available data including proximity to waterways, elevation, and historical flood events. The Bureau of Meteorology (BOM) maintains river height and flood warning data for catchments across Queensland.
Historical flood events have impacted properties along the waterfront and low-lying areas.
Wynnum faces a notable flood risk due to its low-lying coastal location and proximity to waterways. Heavy rainfall events can lead to stormwater and riverine flooding.
For a comprehensive property-specific flood assessment including address-level elevation data, flood overlay mapping, and insurance cost estimates, use the ClimateNest full analysis tool. General suburb data cannot replace a site-specific evaluation.
ClimateNest assesses hazards at the address rather than the suburb, because exposure varies street by street within Wynnum. An address-level check is what tells you about a specific property before you buy, sell or insure it.
Local Hazard Evidence
Historical Events
The 2011 Brisbane floods caused significant inundation in Wynnum, affecting homes and businesses.
The 1974 Brisbane floods caused widespread inundation in Wynnum, impacting homes and businesses.
Adaptation & Mitigation Actions
Upgrade drainage infrastructure
Near-termImprove stormwater drainage systems to reduce the risk of flooding during heavy rainfall events.
Est. cost: Medium
Protect and restore coastal habitats
Long-termRestore mangroves and other coastal vegetation to provide natural buffers against sea level rise and storm surge.
Est. cost: Medium
Implement heatwave early warning systems
ImmediateDevelop and implement heatwave early warning systems to alert vulnerable populations and provide guidance on how to stay safe during extreme heat events.
Est. cost: Low
Raise awareness about climate risks
Near-termConduct community education campaigns to raise awareness about climate risks and promote adaptation measures.
Est. cost: Low
Strengthen building codes
Long-termUpdate building codes to ensure that new buildings are resilient to climate change impacts, such as flooding and heatwaves.
Est. cost: Medium
Council & Emergency Services
Explore Wynnum Risk Reports
View other climate risk assessments for Wynnum:
Frequently Asked Questions
Is Wynnum at risk of flooding?
Based on available data, Wynnum has a location-specific flood risk profile. Flood risk varies by address — check your specific property for precise flood zone mapping and elevation data with ClimateNest.
What flood insurance costs can I expect in Wynnum?
Insurance costs for flood cover in Wynnum depend on the property's flood zone classification, elevation, and proximity to waterways. ClimateNest provides address-level insurance cost estimates based on your property's specific hazard exposure.
Does flood risk affect property values in Wynnum?
Yes, flood risk can affect property values in Wynnum. Properties in mapped flood zones may experience lower buyer demand, reduced valuations, and higher insurance costs. Lenders increasingly assess flood exposure as part of mortgage risk evaluation.
How does elevation affect flood risk in Wynnum?
Elevation is a critical factor in flood risk. Properties at higher elevations within Wynnum typically have lower flood exposure than those near waterways or in low-lying areas. Address-level elevation data combined with BOM flood mapping provides the most accurate picture.
Is Wynnum Safe from Climate Risk?
Enter your address below for an instant climate risk assessment for Wynnum, Queensland, covering flood, bushfire, sea level rise and more.
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Full report from A$49 · Australian addresses only · 8 hazard scores · Insurance trajectory · 2030 & 2050 projections