What the mapping shows for Churchill Island
Part of Churchill Island is mapped as subject to coastal inundation.
6.9% of Churchill Island is mapped as subject to coastal inundation at current sea level
Victorian Coastal Inundation, State of Victoria (DEECA), CC BY 4.0, retrieved 2026-10-21
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 Churchill Island →Is Churchill Island, VIC Climate Safe? 2026 Assessment
6.9% of Churchill Island is mapped as subject to coastal inundation at current sea level
That figure covers the suburb. Check whether your address is inside it - address-level, sourced, A$49.
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
Not ready to check your address? See a free sample report →
Climate Safety Score
5.5Moderate climate risk — address-specific
Key Facts
- Climate Safety
- Medium
- Flood
- Low to moderate flood risk, primarily from storm surge and minor inundation during extreme rainfall events.
- Bushfire
- Low bushfire risk due to its island nature and limited vegetation, but potential exists from nearby coastal scrub.
- Heat
- Moderate to high heat risk, with increasing frequency and intensity of heatwaves impacting comfort and health.
- Storm
- Moderate storm risk — severe thunderstorms with hail and damaging winds
- Postcode
- 3925
- Region
- Coastal VIC
- Median property value
- $725,000
- Dominant hazard
- damaging wind
Climate Safety Analysis
Churchill Island in Victoria 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 Churchill Island's climate safety include heat, coastal. 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 Churchill Island 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 Churchill Island including address-level hazard mapping, insurance outlook, and adaptation recommendations, use the ClimateNest full analysis tool.
Churchill Island located in Coastal VIC (postcode 3925), is a Victoria suburb tracked by ClimateNest. The suburb's median property value is $725,000, and understanding climate exposure is becoming a standard part of due diligence for buyers, lenders and insurers pricing property in Churchill Island.
Across the six hazard axes ClimateNest models, the dominant climate risk for Churchill Island in this type is damaging wind. Insurance signals for the suburb point to premiums rising moderately (+25% by 2030). The actual risk of any single home can only be confirmed with an address-level report.
Whether you are buying, selling or renovating in Churchill Island, damaging wind is the hazard to weigh first. Local council planning controls, state hazard mapping and lender climate policies each reference this kind of suburb-level signal, and property decisions in Churchill Island are increasingly made with an address-level climate report in hand.
Local Hazard Evidence
Historical Events
Heavy rainfall and king tides led to localized flooding and coastal inundation in low-lying areas around Western Port Bay.
A severe heatwave impacted Victoria, with prolonged periods of extreme temperatures causing health concerns and increased fire risk across the state.
The 'Ash Wednesday' fires affected parts of Victoria, with coastal scrub areas experiencing significant burning, though direct impact on Churchill Island was limited.
Significant storm surge and high tides caused coastal erosion and minor inundation along parts of Western Port Bay, impacting low-lying areas.
Adaptation & Mitigation Actions
Coastal Defence and Dune Restoration
Near-termImplement hard and soft engineering solutions for coastal protection, including seawalls and beach nourishment, alongside restoring and enhancing coastal dunes to buffer against erosion and inundation.
Est. cost: $$$$
Heatwave Action Plan
ImmediateDevelop and implement a comprehensive heatwave action plan, including public awareness campaigns, establishing cool refuges, and providing guidance on heat-safe practices for visitors and staff.
Est. cost: $$
Ecosystem Resilience and Management
Long-termFocus on maintaining and enhancing the resilience of the island's natural ecosystems to climate impacts, including managing invasive species and protecting native vegetation.
Est. cost: $$
Floodplain Management and Infrastructure Adaptation
Near-termReview and update floodplain management strategies, ensuring that any new or existing infrastructure is designed or retrofitted to withstand projected flood levels and storm surges.
Est. cost: $$$
Water Management and Conservation
Long-termImplement water-sensitive urban design principles and water conservation measures to manage water resources effectively, especially during periods of drought or increased demand.
Est. cost: $
Council & Emergency Services
Explore Churchill Island Risk Reports
View other climate risk assessments for Churchill Island:
Frequently Asked Questions
Is Churchill Island safe from climate change?
No location in Australia is entirely immune to climate change impacts. Churchill Island 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 Churchill Island?
The dominant hazard for Churchill Island 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 Churchill Island 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 Victoria suburbs.
Should I be concerned about buying property in Churchill Island?
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 Churchill Island?
Key projections for Victoria 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 Churchill Island.
Is Churchill Island Safe from Climate Risk?
Enter your address below for an instant climate risk assessment for Churchill Island, Victoria, 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