Flood Risk in Fremantle, NT: 2026 Assessment

Fremantle, Northern Territory· UNKNOWN
Fremantle faces a moderate risk of flooding, primarily from heavy rainfall events and potential riverine overflow. The risk is expected to increase with climate change due to more intense rainfall.Updated 1 Apr 2026

Flood Risk Score

6.5/10

Fremantle faces a moderate risk of flooding, primarily from heavy rainfall events and potential riverine overflow. The risk is expected to increase with climate change due to more intense rainfall.

Key Facts

Flood Risk
Fremantle faces a moderate risk of flooding, primarily from heavy rainfall events and potential riverine overflow. The risk is expected to increase with climate change due to more intense rainfall.
Trend
increasing
Suburb
Fremantle, NT
Overall Risk
High

Flood Risk Analysis

Fremantle, located in Northern Territory, 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 Northern Territory.

Historical flood data indicates potential for inundation in low-lying areas following heavy rainfall events.

Fremantle faces a moderate risk of flooding, primarily from heavy rainfall events and potential riverine overflow. The risk is expected to increase with climate change due to more intense rainfall.

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.

Local Hazard Evidence

Nearest WaterwayFinniss River
Elevation Range5-20 meters
Flood Zone ClassificationAreas near the Finniss River are susceptible to flooding.

Historical Events

2022
Minor

Minor flooding occurred after a period of heavy rainfall, affecting some low-lying areas.

2019
Moderate

Heavy rainfall caused localized flooding in parts of the region, disrupting traffic and damaging property.

Adaptation & Mitigation Actions

Develop a comprehensive bushfire management plan

Immediate

Implement strategies to reduce bushfire risk, including vegetation management, fire breaks, and community education programs.

Est. cost: Medium

Implement heatwave early warning systems

Near-term

Establish a system to alert residents of impending heatwaves and provide guidance on how to stay safe.

Est. cost: Low

Upgrade stormwater drainage infrastructure

Near-term

Improve drainage systems to reduce the risk of flooding during heavy rainfall events.

Est. cost: High

Promote water conservation measures

Long-term

Encourage residents to conserve water to reduce strain on water resources during periods of drought.

Est. cost: Low

Enhance community resilience through education

Long-term

Provide information and resources to help residents prepare for and respond to climate change impacts.

Est. cost: Low

Council & Emergency Services

Not applicable
Emergency Services

Data last updated: 1 April 2026

Explore Fremantle Risk Reports

Frequently Asked Questions

Is Fremantle at risk of flooding?

Based on available data, Fremantle 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 Fremantle?

Insurance costs for flood cover in Fremantle 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 Fremantle?

Yes, flood risk can affect property values in Fremantle. 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 Fremantle?

Elevation is a critical factor in flood risk. Properties at higher elevations within Fremantle 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.

Is Fremantle Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Fremantle, Northern Territory, covering flood, bushfire, sea level rise and more.

Free instant previewCSIRO-powered data

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