Heat Risk in Warregah Island, NSW: 2026 Assessment
Heat Risk Score
7.0/10Warregah Island experiences hot summers, and heatwaves are becoming more frequent and intense. This poses a risk to vulnerable populations, such as the elderly and those with chronic health conditions.
Key Facts
- Heat Risk
- Warregah Island experiences hot summers, and heatwaves are becoming more frequent and intense. This poses a risk to vulnerable populations, such as the elderly and those with chronic health conditions.
- Trend
- increasing
- Suburb
- Warregah Island, NSW
- Overall Risk
- Medium
- Postcode
- 2469
- Highest high-risk exposure
- 13.5% of land (bushfire)
Heat Risk Analysis
Warregah Island in New South Wales 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 Warregah Island 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 the region.
Get an address-level heat risk assessment from ClimateNest for Warregah Island including cooling cost estimates, heatwave vulnerability scoring, and adaptation recommendations tailored to your property.
Warregah Island (postcode 2469) 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 (13.5% of land in high-risk zones), surface flood (9.9% of land in high-risk zones), riverine flood (5.5% of land in high-risk zones). Exposure is not uniform across Warregah Island — 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 affected Warregah Island, with temperatures exceeding 40 degrees Celsius for several days.
Adaptation & Mitigation Actions
Elevate Homes
Near-termRaise homes above the projected flood level to reduce the risk of water damage.
Est. cost: High
Improve Drainage
Near-termUpgrade drainage systems to better manage stormwater runoff and reduce the risk of flooding.
Est. cost: Medium
Install Air Conditioning
ImmediateInstall air conditioning to provide relief during heatwaves and protect vulnerable populations.
Est. cost: Medium
Coastal Protection
Long-termImplement coastal protection measures, such as seawalls and beach nourishment, to reduce erosion and protect coastal properties.
Est. cost: Very High
Community Education
ImmediateEducate residents about climate change risks and adaptation measures.
Est. cost: Low
Council & Emergency Services
Explore Warregah Island Risk Reports
View other climate risk assessments for Warregah Island:
Frequently Asked Questions
How hot does Warregah Island get in summer?
Warregah Island in New South Wales experiences summer temperatures consistent with the regional climate. BOM publishes historical temperature data for weather stations near Warregah Island. Get a property-specific heat exposure assessment with projected cooling costs from ClimateNest.
Is extreme heat increasing in Warregah Island?
Australia-wide, extreme heat events have become more frequent since the mid-20th century, and this trend is consistent with CSIRO climate projections for New South Wales. Continued warming is likely through 2050 under all emissions scenarios.
How does heat affect energy costs for Warregah Island 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 Warregah Island and the performance of your building envelope.
What heat mitigation measures work best in Warregah Island?
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 Warregah Island is exposed to high bushfire risk?
ClimateNest's hazard overlay maps 13.5% of Warregah Island in high-risk zones for bushfire, with a further 60.7% 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 Warregah Island Safe from Climate Risk?
Enter your address below for an instant climate risk assessment for Warregah Island, New South Wales, covering flood, bushfire, sea level rise and more.
What A$69 could save you from
*Industry sources: ICA, APRA, RBA
Full report from A$69 · Australian addresses only · 8 hazard scores · Insurance trajectory · 2030 & 2050 projections