Heat Risk in Swansea, TAS: 2026 Assessment
Heat Risk Score
5.0/10Swansea is experiencing an increase in the number of hot days and heatwaves. Climate change is projected to further increase average temperatures, leading to more frequent and intense heat events.
Key Facts
- Heat Risk
- Swansea is experiencing an increase in the number of hot days and heatwaves. Climate change is projected to further increase average temperatures, leading to more frequent and intense heat events.
- Trend
- increasing
- Suburb
- Swansea, TAS
- Overall Risk
- Medium
- Postcode
- 7190
- Highest high-risk exposure
- 11.9% of land (surface flood)
Heat Risk Analysis
Swansea in Tasmania faces elevated 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 Swansea 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.
Swansea is experiencing an increase in the number of days exceeding 30°C. Heatwaves are becoming more frequent and intense, posing a risk to public health.
Get an address-level heat risk assessment from ClimateNest for Swansea including cooling cost estimates, heatwave vulnerability scoring, and adaptation recommendations tailored to your property.
Swansea (postcode 7190) 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 (11.9% of land in high-risk zones), riverine flood (8% of land in high-risk zones), bushfire (5.3% of land in high-risk zones). Exposure is not uniform across Swansea — 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
Adaptation & Mitigation Actions
Coastal Protection Measures
ImmediateImplement coastal protection measures such as seawalls, beach nourishment, and dune restoration to reduce the impact of sea level rise and coastal erosion.
Est. cost: High
Flood Management Planning
Near-termDevelop and implement a comprehensive flood management plan that includes improved drainage infrastructure, flood warning systems, and evacuation plans.
Est. cost: Medium
Bushfire Risk Mitigation
Near-termImplement bushfire risk mitigation measures such as vegetation management, fire breaks, and community education programs.
Est. cost: Medium
Heatwave Preparedness
Near-termDevelop and implement a heatwave preparedness plan that includes public awareness campaigns, cooling centers, and support for vulnerable populations.
Est. cost: Low
Community Education and Awareness
Long-termRaise community awareness about climate change risks and adaptation measures through workshops, information sessions, and online resources.
Est. cost: Low
Council & Emergency Services
Explore Swansea Risk Reports
View other climate risk assessments for Swansea:
Frequently Asked Questions
How hot does Swansea get in summer?
Swansea in Tasmania experiences summer temperatures consistent with the regional climate. BOM publishes historical temperature data for weather stations near Swansea. Get a property-specific heat exposure assessment with projected cooling costs from ClimateNest.
Is extreme heat increasing in Swansea?
Australia-wide, extreme heat events have become more frequent since the mid-20th century, and this trend is consistent with CSIRO climate projections for Tasmania. Continued warming is likely through 2050 under all emissions scenarios.
How does heat affect energy costs for Swansea 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 Swansea and the performance of your building envelope.
What heat mitigation measures work best in Swansea?
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.
What share of Swansea is exposed to high surface flood risk?
ClimateNest's hazard overlay maps 11.9% of Swansea in high-risk zones for surface flood, with a further 68.3% 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 Swansea Safe from Climate Risk?
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