๐Ÿ“ฎ Tammin postcode: 6409

Flood Risk in Tammin, WA: 2026 Assessment

Tammin, Western Australiaยท Tamminยท 6409
Tammin faces a moderate risk of flooding, primarily from heavy rainfall events overwhelming local drainage. The risk is projected to increase with climate change.Updated 18 Mar 2026

Flood Risk Score

4.0/10

Tammin faces a moderate risk of flooding, primarily from heavy rainfall events overwhelming local drainage. The risk is projected to increase with climate change.

Key Facts

Flood Risk
Tammin faces a moderate risk of flooding, primarily from heavy rainfall events overwhelming local drainage. The risk is projected to increase with climate change.
Trend
increasing
Suburb
Tammin, WA
Overall Risk
Medium
Postcode
6409
Highest high-risk exposure
13% of land (bushfire)

Flood Risk Analysis

Tammin, 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.

Historical flood events have been associated with intense rainfall periods.

Tammin faces a moderate risk of flooding, primarily from heavy rainfall events overwhelming local drainage. The risk is projected to increase with 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.

Tammin sits within ClimateNest's suburb-level hazard model for flood risk. 8.6% of the suburb's land area is mapped in high-risk flood zones and 75.6% 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 Tammin.

Tammin (postcode 6409) 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% of land in high-risk zones), riverine flood (8.6% of land in high-risk zones), surface flood (7.1% of land in high-risk zones). Exposure is not uniform across Tammin โ€” 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 WaterwayYilgarn River
Elevation Range280-320m
Flood Zone ClassificationLow-lying areas near the Yilgarn River

Historical Events

2010
Moderate

Heavy rainfall caused localized flooding in Tammin, affecting some residential areas.

Adaptation & Mitigation Actions

Improve Bushfire Management

Immediate

Implement controlled burns and maintain firebreaks to reduce the risk of bushfires spreading to populated areas.

Est. cost: Medium

Upgrade Drainage Infrastructure

Near-term

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

Est. cost: High

Implement Heatwave Early Warning System

Immediate

Develop a system to alert residents of impending heatwaves and provide advice on how to stay safe.

Est. cost: Low

Promote Water Conservation

Long-term

Encourage residents to conserve water to reduce the impact of droughts.

Est. cost: Low

Council & Emergency Services

Shire of Tammin
Emergency Services

Data last updated: 18 March 2026

Explore Tammin Risk Reports

Frequently Asked Questions

Is Tammin at risk of flooding?

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

What flood insurance costs can I expect in Tammin?

Insurance costs for flood cover in Tammin 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 Tammin?

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

Elevation is a critical factor in flood risk. Properties at higher elevations within Tammin 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 Tammin is exposed to high bushfire risk?

ClimateNest's hazard overlay maps 13% of Tammin in high-risk zones for bushfire, with a further 70.6% in moderate-risk zones. Suburb-level exposure is not uniform โ€” individual properties can differ from these averages, so an address-level check is recommended.

Is Tammin Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Tammin, Western Australia, 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 ยท Australian addresses only ยท 8 hazard scores ยท Insurance trajectory ยท 2030 & 2050 projections