What the mapping shows for Newnham
Part of Newnham is mapped as subject to coastal inundation.
7.8% of Newnham is mapped as subject to coastal inundation (coastal inundation hazard band, including 1% AEP storm tide at 2100)
86.9% of Newnham is mapped as subject to coastal erosion (coastal erosion hazard band mapped for the Tasmanian planning system)
Tasmanian Coastal Inundation Hazard Bands (20161201), State of Tasmania (Department of Premier and Cabinet), 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 Newnham →Heat Risk in Newnham, TAS: 2026 Assessment
7.8% of Newnham is mapped as subject to coastal inundation (coastal inundation hazard band, including 1% AEP storm tide at 2100)
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 assessedNewnham is likely to experience more frequent and intense heatwaves. This could pose a risk to vulnerable populations.
Key Facts
- Heat Risk
- Newnham is likely to experience more frequent and intense heatwaves. This could pose a risk to vulnerable populations.
- Trend
- increasing
- Suburb
- Newnham, TAS
- Overall Risk
- Medium
- Postcode
- 7248
Heat Risk Analysis
Newnham in Tasmania 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 Newnham 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 are becoming more frequent and intense in Tasmania.
Get an address-level heat risk assessment from ClimateNest for Newnham 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 Newnham. An address-level check is what tells you about a specific property before you buy, sell or insure it.
Local Hazard Evidence
Historical Events
Tasmania experienced a prolonged heatwave, with record temperatures recorded in some areas.
Adaptation & Mitigation Actions
Improve Flood Defenses
Near-termInvest in infrastructure to protect against flooding, such as levees, seawalls, and improved drainage systems.
Est. cost: High
Bushfire Preparedness
ImmediateImplement bushfire mitigation measures, such as clearing vegetation around homes and creating firebreaks.
Est. cost: Low
Heatwave Action Plan
Near-termDevelop a heatwave action plan to protect vulnerable populations during extreme heat events.
Est. cost: Medium
Coastal Management Strategy
Long-termDevelop a coastal management strategy to address the impacts of sea level rise and coastal erosion.
Est. cost: High
Community Education
Near-termRaise community awareness about climate risks and adaptation measures.
Est. cost: Low
Council & Emergency Services
Explore Newnham Risk Reports
View other climate risk assessments for Newnham:
Frequently Asked Questions
How hot does Newnham get in summer?
Newnham in Tasmania experiences summer temperatures consistent with the regional climate. BOM publishes historical temperature data for weather stations near Newnham. Get a property-specific heat exposure assessment with projected cooling costs from ClimateNest.
Is extreme heat increasing in Newnham?
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 Newnham 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 Newnham and the performance of your building envelope.
What heat mitigation measures work best in Newnham?
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 Newnham Safe from Climate Risk?
Enter your address below for an instant climate risk assessment for Newnham, Tasmania, covering flood, bushfire, sea level rise and more.
What A$49 could save you from
*Industry sources: ICA, APRA, RBA
Full report from A$49 · Australian addresses only · 8 hazard scores · Insurance trajectory · 2030 & 2050 projections