Is Leonay, NSW Climate Safe? 2026 Assessment
Climate Safety Score
5.2/10Moderate climate risk — address-specific
Key Facts
- Climate Safety
- Medium
- Flood
- Leonay has a moderate risk of flooding due to its proximity to the Nepean River and local creeks. Heavy rainfall events can cause these waterways to overflow, impacting low-lying areas.
- Bushfire
- Leonay faces a moderate bushfire risk due to its location near bushland areas. Dry conditions and strong winds can increase the likelihood of bushfires spreading to residential areas.
- Heat
- Leonay is likely to experience more frequent and intense heatwaves in the future. This can pose a risk to vulnerable populations, such as the elderly and those with chronic health conditions.
- Storm
- Moderate storm risk — East Coast Lows bring severe weather including hail and damaging winds
- Postcode
- 2750
- Highest high-risk exposure
- 17.2% of land (bushfire)
Climate Safety Analysis
Leonay in New South Wales has an overall climate safety rating of Medium. This multi-hazard assessment combines flood, bushfire, heat, coastal, and storm risk data with climate projections to 2050 from CSIRO and the Bureau of Meteorology.
Key factors affecting Leonay's climate safety include heat, flood. Each hazard is assessed independently and combined for an overall picture. Australia has warmed by approximately 1.5 °C since 1910, with flow-on effects to fire weather, extreme rainfall, and heatwave frequency.
Climate safety for property in Leonay is not uniform — it varies by address. Factors such as elevation, distance to waterways, proximity to bushland, and local drainage all influence actual risk at a specific property. Two nearby properties can have materially different risk profiles.
For a complete property-specific climate safety report for Leonay including address-level hazard mapping, insurance outlook, and adaptation recommendations, use the ClimateNest full analysis tool.
Leonay (postcode 2750) 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 (17.2% of land in high-risk zones), surface flood (10.3% of land in high-risk zones), riverine flood (5.9% of land in high-risk zones). Exposure is not uniform across Leonay — 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
Heavy rainfall caused the Nepean River to flood, impacting some properties in Leonay.
Leonay experienced a prolonged heatwave with temperatures exceeding 40 degrees Celsius for several days.
Bushfires in the Blue Mountains region threatened Leonay, requiring residents to be prepared for evacuation.
The Nepean River experienced moderate flooding, impacting low-lying areas of Leonay.
Adaptation & Mitigation Actions
Improve flood defenses
Near-termInvest in infrastructure to mitigate flood risk, such as levees and improved drainage systems.
Est. cost: High
Enhance bushfire preparedness
Near-termImplement bushfire management strategies, including vegetation clearing and community education programs.
Est. cost: Medium
Develop heatwave response plan
ImmediateCreate a plan to protect vulnerable populations during heatwaves, including cooling centers and public awareness campaigns.
Est. cost: Low
Promote water conservation
Long-termEncourage water conservation measures to reduce the impact of droughts and water scarcity.
Est. cost: Low
Upgrade building codes
Long-termImplement stricter building codes to ensure new constructions are resilient to climate change impacts.
Est. cost: Medium
Council & Emergency Services
Explore Leonay Risk Reports
View other climate risk assessments for Leonay:
Frequently Asked Questions
Is Leonay safe from climate change?
No location in Australia is entirely immune to climate change impacts. Leonay has an overall Medium climate risk rating. Understanding the specific hazards at your property address — not just the suburb average — provides the most reliable risk picture.
Which climate hazard poses the biggest risk in Leonay?
The dominant hazard for Leonay depends on geography and local environment. Proximity to waterways elevates flood risk, while proximity to bushland increases bushfire risk. ClimateNest's multi-hazard analysis identifies the highest-risk hazards for any specific address.
How does Leonay compare to nearby suburbs for climate safety?
Nearby suburbs may have different climate risk profiles depending on elevation, vegetation cover, drainage patterns, and land use. ClimateNest allows comparison of climate safety scores across New South Wales suburbs.
Should I be concerned about buying property in Leonay?
Climate risk should be one factor in your decision, alongside price, location, and amenity. An informed buyer understands the specific risks at a property address and factors insurance costs and climate projections into their assessment of long-term value.
What climate projections should I know for Leonay?
Key projections for New South Wales from CSIRO include increased average temperatures, more frequent hot days, changes in rainfall seasonality, longer fire seasons, and potential increases in extreme rainfall intensity. These trends inform the long-term outlook for Leonay.
What share of Leonay is exposed to high bushfire risk?
ClimateNest's hazard overlay maps 17.2% of Leonay in high-risk zones for bushfire, with a further 63.7% 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 Leonay Safe from Climate Risk?
Enter your address below for an instant climate risk assessment for Leonay, New South Wales, covering flood, bushfire, sea level rise and more.
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