Heat Risk in Tiwi, NT: 2026 Assessment
Heat Risk Score
7.0/10Tiwi experiences a high heat risk due to its tropical climate. Rising temperatures and increased humidity can lead to heat stress, particularly during the wet season.
Key Facts
- Heat Risk
- Tiwi experiences a high heat risk due to its tropical climate. Rising temperatures and increased humidity can lead to heat stress, particularly during the wet season.
- Trend
- increasing
- Suburb
- Tiwi, NT
- Overall Risk
- Medium
- Postcode
- 0810
- Highest high-risk exposure
- 20.4% of land (bushfire)
Heat Risk Analysis
Tiwi in Northern Territory 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 Tiwi 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.
Tiwi experiences frequent heatwave conditions during the wet season, increasing the risk of heat-related illnesses.
Get an address-level heat risk assessment from ClimateNest for Tiwi including cooling cost estimates, heatwave vulnerability scoring, and adaptation recommendations tailored to your property.
Tiwi (postcode 0810) 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 bushfire (20.4% of land in high-risk zones), tropical cyclone (9.8% of land in high-risk zones), extreme wind (9.1% of land in high-risk zones). Exposure is not uniform across Tiwi — 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
Historical Events
A prolonged heatwave resulted in increased hospital admissions for heat-related illnesses in the Darwin region, including Tiwi.
Adaptation & Mitigation Actions
Upgrade stormwater drainage infrastructure
Near-termImprove the capacity of stormwater drainage systems to handle increased rainfall intensity and reduce the risk of localized flooding.
Est. cost: Medium
Implement a heatwave early warning system
ImmediateDevelop and implement a system to alert residents of impending heatwaves and provide guidance on how to stay safe.
Est. cost: Low
Protect and restore coastal ecosystems
Long-termConserve and rehabilitate mangrove forests and other coastal ecosystems to provide natural protection against erosion and storm surge.
Est. cost: Medium
Raise awareness about climate risks
Near-termConduct community education campaigns to inform residents about the risks of climate change and how to prepare for extreme weather events.
Est. cost: Low
Council & Emergency Services
Explore Tiwi Risk Reports
Frequently Asked Questions
How hot does Tiwi get in summer?
Tiwi in Northern Territory experiences summer temperatures consistent with the regional climate. BOM publishes historical temperature data for weather stations near Tiwi. Get a property-specific heat exposure assessment with projected cooling costs from ClimateNest.
Is extreme heat increasing in Tiwi?
Australia-wide, extreme heat events have become more frequent since the mid-20th century, and this trend is consistent with CSIRO climate projections for Northern Territory. Continued warming is likely through 2050 under all emissions scenarios.
How does heat affect energy costs for Tiwi 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 Tiwi and the performance of your building envelope.
What heat mitigation measures work best in Tiwi?
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 Tiwi is exposed to high bushfire risk?
ClimateNest's hazard overlay maps 20.4% of Tiwi in high-risk zones for bushfire, with a further 66% 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 Tiwi Safe from Climate Risk?
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