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 →Storm Risk in Churchill Island, VIC: 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.
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*Industry sources: ICA, APRA, RBA
Full report from A$49 · Australian addresses only · 8 hazard scores · Insurance trajectory · 2030 & 2050 projections
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Storm Risk Score
Not assessedModerate storm risk — severe thunderstorms with hail and damaging winds
Key Facts
- Storm Risk
- Moderate storm risk — severe thunderstorms with hail and damaging winds
- Trend
- stable
- Suburb
- Churchill Island, VIC
- Overall Risk
- Medium
- Postcode
- 3925
- Region
- Coastal VIC
- Median property value
- $725,000
- Dominant hazard
- damaging wind
Storm Risk Analysis
Churchill Island, Victoria, has a location-specific storm risk profile. This includes exposure to severe thunderstorms, hail, damaging winds, and — in tropical regions — cyclone impacts. The applicable wind region classification under AS/NZS 1170.2 influences building design standards for Churchill Island.
Severe thunderstorms affecting Churchill Island can produce damaging wind gusts, large hail, and intense rainfall. The Bureau of Meteorology issues severe weather warnings for Victoria, and historical storm data helps characterise the frequency and intensity of events in the region.
CSIRO research indicates that the intensity of severe convective storms — including those producing hail and damaging winds — may increase in a warming climate. For Churchill Island property owners, this reinforces the value of storm-resistant building features and comprehensive insurance.
ClimateNest provides address-level storm risk reports for Churchill Island including wind zone classification, hail risk probability, and property-specific mitigation recommendations based on your building characteristics.
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
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 prone to hailstorms?
Hail risk in Churchill Island depends on the frequency of severe thunderstorm activity in the Victoria region. BOM tracks severe storm events including hail. Property-specific risk depends on roof design, building orientation, and local storm patterns.
What wind rating applies to buildings in Churchill Island?
Under AS/NZS 1170.2, properties in Churchill Island are assigned a wind region classification. This rating determines structural design requirements for new buildings. Check with ClimateNest or a structural engineer for your property's classification.
Does storm risk affect insurance premiums in Churchill Island?
Yes, storm damage — including wind, hail, and rain ingress — is one of the most common insurance claims in Australia. Properties in higher wind zones or with greater hail exposure may face higher premiums or specific policy conditions.
What storm mitigation measures should Churchill Island property owners consider?
Storm mitigation includes impact-resistant roofing, cyclone-rated fixings where required, window and door shutters, regular roof and gutter maintenance, securing outdoor items, and ensuring compliance with current wind load standards under the National Construction Code.
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