Flood Risk in Warnbro, WA: 2026 Assessment

Warnbro, Western Australia· UNKNOWN
Warnbro faces a moderate risk of flooding, primarily from intense rainfall events and coastal inundation. The risk is expected to increase due to climate change.Updated 3 Apr 2026

Flood Risk Score

4.0/10

Warnbro faces a moderate risk of flooding, primarily from intense rainfall events and coastal inundation. The risk is expected to increase due to climate change.

Key Facts

Flood Risk
Warnbro faces a moderate risk of flooding, primarily from intense rainfall events and coastal inundation. The risk is expected to increase due to climate change.
Trend
increasing
Suburb
Warnbro, WA
Overall Risk
Medium
Postcode
6169
Highest high-risk exposure
13.3% of land (bushfire)

Flood Risk Analysis

Warnbro, located in Western Australia, has a notable flood risk profile based on available data including proximity to waterways, elevation, and historical flood events. The Bureau of Meteorology (BOM) maintains river height and flood warning data for catchments across Western Australia.

Low-lying areas near the coast are most vulnerable to flooding.

Warnbro faces a moderate risk of flooding, primarily from intense rainfall events and coastal inundation. The risk is expected to increase due to climate change.

For a comprehensive property-specific flood assessment including address-level elevation data, flood overlay mapping, and insurance cost estimates, use the ClimateNest full analysis tool. General suburb data cannot replace a site-specific evaluation.

Warnbro sits within ClimateNest's suburb-level hazard model for flood risk. 5.5% of the suburb's land area is mapped in high-risk flood zones and 74.3% in moderate-risk zones, based on the national hazard overlay. Exposure at this scale varies street by street, which is why an address-level check matters before you buy or insure a specific property in Warnbro.

Warnbro (postcode 6169) 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 (13.3% of land in high-risk zones), riverine flood (5.5% of land in high-risk zones), extreme wind (5.3% of land in high-risk zones). Exposure is not uniform across Warnbro — 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

Nearest WaterwayWarnbro Sound
Elevation Range0-20m
Flood Zone ClassificationCoastal Inundation Zone

Historical Events

2011
Minor

Heavy rainfall caused localized flooding in Warnbro.

Adaptation & Mitigation Actions

Develop a community heatwave plan

Immediate

Establish cooling centers and provide support for vulnerable residents during heatwaves.

Est. cost: Low

Improve bushfire preparedness

Near-term

Implement vegetation management programs and educate residents about bushfire safety.

Est. cost: Medium

Strengthen coastal defenses

Long-term

Invest in coastal protection measures to mitigate the impacts of sea level rise and erosion.

Est. cost: High

Upgrade stormwater drainage

Near-term

Improve stormwater infrastructure to reduce the risk of flooding from heavy rainfall events.

Est. cost: Medium

Promote water conservation

Long-term

Encourage residents to conserve water to reduce strain on water resources during droughts.

Est. cost: Low

Council & Emergency Services

City of Rockingham
Emergency Services

Data last updated: 3 April 2026

Explore Warnbro Risk Reports

Frequently Asked Questions

Is Warnbro at risk of flooding?

Based on available data, Warnbro has a notable flood risk profile. Flood risk varies by address — check your specific property for precise flood zone mapping and elevation data with ClimateNest.

What flood insurance costs can I expect in Warnbro?

Insurance costs for flood cover in Warnbro depend on the property's flood zone classification, elevation, and proximity to waterways. ClimateNest provides address-level insurance cost estimates based on your property's specific hazard exposure.

Does flood risk affect property values in Warnbro?

Yes, flood risk can affect property values in Warnbro. Properties in mapped flood zones may experience lower buyer demand, reduced valuations, and higher insurance costs. Lenders increasingly assess flood exposure as part of mortgage risk evaluation.

How does elevation affect flood risk in Warnbro?

Elevation is a critical factor in flood risk. Properties at higher elevations within Warnbro typically have lower flood exposure than those near waterways or in low-lying areas. Address-level elevation data combined with BOM flood mapping provides the most accurate picture.

What share of Warnbro is exposed to high bushfire risk?

ClimateNest's hazard overlay maps 13.3% of Warnbro in high-risk zones for bushfire, with a further 58.3% 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 Warnbro Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Warnbro, Western Australia, covering flood, bushfire, sea level rise and more.

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What A$69 could save you from

$7.2B
2022 insured disaster losses*
$300B+
climate risk to property by 2050*
30-120%
insurance premium increases in high-risk areas*

*Industry sources: ICA, APRA, RBA

Full report from A$69 · Australian addresses only · 8 hazard scores · Insurance trajectory · 2030 & 2050 projections