Climate Risk in Wynnum, Tasmania

Wynnum, Tasmania
Medium Risk
Updated Apr 2026

Wynnum, Tasmania, faces increasing climate risks, particularly from coastal hazards and flooding. Rising temperatures and more intense rainfall events are expected to exacerbate these risks in the coming decades. Residents should prepare for potential impacts on property and infrastructure.

Overall Risk Score

55/100
Medium

Confidence: Medium

Hazard Breakdown

Flood
6.0
Bushfire
4.0
Heat
5.0
Coastal
7.0

Climate Hazard Breakdown for Wynnum

increasing

Flood

60/100

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, potentially worsening flood events.

Key drivers:

  • ·Increased rainfall intensity
  • ·Sea level rise
increasing

Bushfire

40/100

The bushfire risk in Wynnum is relatively low compared to other regions in Tasmania, but it's still present due to nearby bushland. Drier conditions and higher temperatures could elevate this risk in the future.

Key drivers:

  • ·Increased temperatures
  • ·Drier conditions
increasing

Heat

50/100

Wynnum experiences moderate heat risk, with increasing average temperatures during summer. Heatwaves are expected to become more frequent and intense, impacting vulnerable populations.

Key drivers:

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

Coastal

70/100

Wynnum faces a high coastal risk due to its location near the coastline. Sea level rise and increased storm surges threaten coastal erosion and inundation of low-lying areas.

Key drivers:

  • ·Sea level rise
  • ·Increased storm surge
stable

Wind

39/100

Notable wind risk — westerly wind storms

stable

Storm

28/100

Moderate storm risk — occasional severe weather

stable

Social

14/100

Lower social stability — regional isolation

increasing

Energy

32/100

Moderate energy costs — winter heating

In-Depth Climate Risk Guides for Wynnum

Detailed Hazard Analysis

heat Risk

50/100

Wynnum experiences moderate heat risk, with increasing average temperatures during summer. Heatwaves are expected to become more frequent and intense, impacting vulnerable populations.

Primary Drivers

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

Projections (RCP8.5)

2030

5.5

2050

6.0

Data source

flood Risk

60/100

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, potentially worsening flood events.

Primary Drivers

  • ·Increased rainfall intensity
  • ·Sea level rise
  • ·Inadequate drainage infrastructure

Projections (RCP8.5)

2030

6.5

2050

7.0

Data source

coastal Risk

70/100

Wynnum faces a high coastal risk due to its location near the coastline. Sea level rise and increased storm surges threaten coastal erosion and inundation of low-lying areas.

Primary Drivers

  • ·Sea level rise
  • ·Increased storm surge
  • ·Coastal erosion

Projections (RCP8.5)

2030

7.5

2050

8.0

Data source

bushfire Risk

40/100

The bushfire risk in Wynnum is relatively low compared to other regions in Tasmania, but it's still present due to nearby bushland. Drier conditions and higher temperatures could elevate this risk in the future.

Primary Drivers

  • ·Increased temperatures
  • ·Drier conditions
  • ·Vegetation dryness

Projections (RCP8.5)

2030

4.5

2050

5.0

Data source

What This Means for Property Owners

Insurance Outlook

Increased premiums possible due to climate risks

Price Impact

Potential for decreased property values in high-risk areas

Buyer Checklist

  • 1.Check flood maps and coastal erosion risk assessments
  • 2.Assess property's vulnerability to bushfire
  • 3.Inquire about insurance coverage and premiums
  • 4.Consider energy efficiency and cooling options

Local Climate Evidence

Flood Evidence

Nearest Waterway
Proximity to Frederick Henry Bay
Elevation Range
0-20 meters above sea level
Flood Zone
Coastal Flood Zone

Low-lying areas near the coast are particularly vulnerable to flooding during high tides and storm surges.

View council flood map

Bushfire Evidence

Distance to Bushland
Within 5km of bushland reserves
Planning Overlay
Bushfire-prone area overlay may apply
Bushfire Prone Area
Yes

Areas adjacent to bushland are at higher risk during bushfire season.

Heat Evidence

Avg January Max Temp
22.5°C
Heat Stress Days/Year
2 days

Elderly residents are particularly vulnerable to heat stress during summer months.

Coastal Evidence

Distance to Coast
0.5 km
Sea Level Rise Exposure
High exposure to sea level rise
Erosion Risk
Moderate erosion risk

Historical Climate Events

2013
floodModerate

Heavy rainfall caused localized flooding in low-lying areas of Wynnum.

Source
2018
stormModerate

A severe storm brought strong winds and heavy rain to Wynnum, causing minor damage to property.

Source
2019
heatwaveModerate

A prolonged heatwave resulted in increased heat stress among vulnerable residents.

Source
2022
coastalMinor

High tides and storm surge caused minor coastal erosion in Wynnum.

Source

Climate Outlook to 2050

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

HazardToday20302050
flood606.5(+0.5)7.0(+1.0)
bushfire404.3(+0.3)4.5(+0.5)
heat505.4(+0.4)5.8(+0.8)
coastal707.8(+0.8)8.2(+1.2)

By 2030, Wynnum is projected to experience a moderate increase in overall climate risk, with coastal hazards and flooding posing the greatest threats. Heatwaves are also expected to become more frequent and intense.

CSIRO Climate Projections

Adaptation Recommendations

Improve Drainage Infrastructure

Near-term

Upgrade drainage systems to handle increased rainfall intensity and reduce the risk of flooding.

Est. cost: Medium

Learn more

Protect Coastal Areas

Immediate

Implement coastal protection measures such as seawalls and beach nourishment to reduce erosion and inundation.

Est. cost: High

Learn more

Develop Heatwave Early Warning System

Near-term

Establish a system to alert residents of impending heatwaves and provide guidance on how to stay safe.

Est. cost: Low

Learn more

Promote Energy Efficiency

Long-term

Encourage residents to adopt energy-efficient practices to reduce greenhouse gas emissions and lower energy bills.

Est. cost: Low

Learn more

Bushfire Preparedness Planning

Near-term

Develop and implement bushfire preparedness plans for properties near bushland, including clearing vegetation and creating firebreaks.

Est. cost: Low

Learn more

About Wynnum's Climate Risk Profile

Wynnum is a suburb in Tasmania that is increasingly vulnerable to the impacts of climate change. The primary risks include coastal inundation due to sea level rise, increased flooding from more intense rainfall events, and a higher frequency of heatwaves. These changes pose significant challenges to the local community and infrastructure.

The coastal risk is particularly concerning, as Wynnum's proximity to the coastline makes it susceptible to erosion and inundation. Sea level rise is projected to worsen over the coming decades, potentially impacting properties and infrastructure located near the shore. Storm surges could also become more frequent and intense, further exacerbating coastal hazards.

Flooding is another significant risk, with climate change expected to increase rainfall intensity. This could lead to more frequent and severe flood events, particularly in low-lying areas. Inadequate drainage infrastructure may also contribute to the problem, increasing the vulnerability of the suburb to flooding.

Rising temperatures and more frequent heatwaves pose a threat to public health, especially for vulnerable populations such as the elderly and those with chronic health conditions. The urban heat island effect could further amplify these risks, making it even hotter in built-up areas. Residents should take steps to prepare for extreme heat events, such as staying hydrated and seeking shelter in air-conditioned environments.

Addressing these climate risks will require a coordinated effort from local government, residents, and other stakeholders. Adaptation measures such as improving drainage infrastructure, protecting coastal areas, and implementing heatwave early warning systems can help to reduce the vulnerability of Wynnum to climate change. It is also important to reduce greenhouse gas emissions to mitigate the long-term impacts of climate change.

Data sources: BOM · CSIRO · Tasmanian State Emergency Service · Tasmanian Fire Service · Department of Natural Resources and Environment Tasmania

Local Government Resources

Frequently Asked Questions

What are the main climate change risks in Wynnum?

The main climate change risks in Wynnum include coastal inundation, increased flooding, and more frequent heatwaves.

How will sea level rise affect Wynnum?

Sea level rise is expected to cause coastal erosion and inundation of low-lying areas in Wynnum, potentially impacting properties and infrastructure.

What can I do to prepare for heatwaves in Wynnum?

During heatwaves, it's important to stay hydrated, seek shelter in air-conditioned environments, and check on vulnerable neighbors.

How is the local council addressing climate change in Wynnum?

The local council is developing and implementing climate adaptation strategies to reduce the vulnerability of Wynnum to climate change impacts. Contact the council for more information.

Where can I find information about flood risks in Wynnum?

Information about flood risks in Wynnum can be found on the State Emergency Service (SES) website and potentially on the local council website if available.

Are there any government grants available for climate adaptation measures?

Check the Tasmanian government website for information on available grants and funding programs for climate adaptation measures.

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What A$69 could save you from

$7.2B
2022 insured disaster losses*
$300B+
climate risk to property by 2050*
30-120%
insurance premium increases in high-risk areas*

*Industry sources: ICA, APRA, RBA

Full report from A$69 · Australian addresses only · 8 hazard scores · Insurance trajectory · 2030 & 2050 projections