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 →Heat 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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Heat Risk Score
Not assessedWynnum experiences moderate heat risk, with increasing average temperatures and more frequent heatwaves. Vulnerable populations are at higher risk during extreme heat events.
Key Facts
- Heat Risk
- Wynnum experiences moderate heat risk, with increasing average temperatures and more frequent heatwaves. Vulnerable populations are at higher risk during extreme heat events.
- Trend
- increasing
- Suburb
- Wynnum, QLD
- Overall Risk
- Medium
- Postcode
- 4178
Heat Risk Analysis
Wynnum in Queensland faces location-specific extreme heat risk. The Bureau of Meteorology (BOM) reports that Australia's average temperature has increased by approximately 1.5 °C since 1910, with the frequency of extreme heat days rising across most regions.
The urban heat island (UHI) effect can make built-up areas of Wynnum warmer than surrounding rural areas, particularly on summer nights. Dark roof materials, limited tree canopy cover, and heat-absorbing surfaces contribute to localised heat stress that varies by property.
Heatwaves can strain local infrastructure and increase demand for cooling.
Get an address-level heat risk assessment from ClimateNest for Wynnum including cooling cost estimates, heatwave vulnerability scoring, and adaptation recommendations tailored to your property.
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
A prolonged heatwave in January 2020 led to increased hospital admissions and strain on energy infrastructure.
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
How hot does Wynnum get in summer?
Wynnum in Queensland experiences summer temperatures consistent with the regional climate. BOM publishes historical temperature data for weather stations near Wynnum. Get a property-specific heat exposure assessment with projected cooling costs from ClimateNest.
Is extreme heat increasing in Wynnum?
Australia-wide, extreme heat events have become more frequent since the mid-20th century, and this trend is consistent with CSIRO climate projections for Queensland. Continued warming is likely through 2050 under all emissions scenarios.
How does heat affect energy costs for Wynnum properties?
Higher temperatures increase cooling demand, which raises electricity costs. ClimateNest provides energy cost projections based on your property's specific exposure to extreme heat days in Wynnum and the performance of your building envelope.
What heat mitigation measures work best in Wynnum?
Effective heat mitigation includes light-coloured roofing (cool roofs), ceiling and wall insulation, double-glazed windows, external shading, cross-ventilation design, and increasing tree canopy around the property. These measures reduce indoor temperatures and cooling costs.
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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*Industry sources: ICA, APRA, RBA
Full report from A$49 · Australian addresses only · 8 hazard scores · Insurance trajectory · 2030 & 2050 projections