Flood Risk in Wembley, WA: 2026 Assessment
Flood Risk Score
4.5/10Wembley faces a moderate risk of flooding, primarily from intense rainfall events and potential stormwater runoff. The flat topography in some areas can exacerbate water accumulation.
Key Facts
- Flood Risk
- Wembley faces a moderate risk of flooding, primarily from intense rainfall events and potential stormwater runoff. The flat topography in some areas can exacerbate water accumulation.
- Trend
- increasing
- Suburb
- Wembley, WA
- Overall Risk
- Medium
- Postcode
- 6014
- Highest high-risk exposure
- 8.9% of land (bushfire)
Flood Risk Analysis
Wembley, 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.
Localized flooding can occur during periods of heavy rainfall, particularly in areas with poor drainage.
Wembley faces a moderate risk of flooding, primarily from intense rainfall events and potential stormwater runoff. The flat topography in some areas can exacerbate water accumulation.
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.
Wembley sits within ClimateNest's suburb-level hazard model for flood risk. 6% of the suburb's land area is mapped in high-risk flood zones and 76.8% 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 Wembley.
Wembley (postcode 6014) 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 (8.9% of land in high-risk zones), surface flood (7.7% of land in high-risk zones), tropical cyclone (6.7% of land in high-risk zones). Exposure is not uniform across Wembley 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
Historical Events
Heavy rainfall caused localized flooding in Wembley, particularly in low-lying areas near Herdsman Lake.
Adaptation & Mitigation Actions
Improve building design for heat resilience
Near-termEncourage the use of passive cooling techniques, such as shading and natural ventilation, in new and existing buildings. Promote the installation of solar panels and energy-efficient appliances to reduce energy consumption during heatwaves.
Est. cost: Medium
Enhance drainage infrastructure
Near-termUpgrade stormwater drainage systems to cope with increased rainfall intensity and runoff. Implement green infrastructure solutions, such as rain gardens and permeable pavements, to reduce flooding.
Est. cost: High
Develop a community heatwave plan
ImmediateCreate a plan to protect vulnerable populations during heatwaves. This includes establishing cooling centers, providing outreach services, and educating residents about heat safety.
Est. cost: Low
Protect coastal areas
Long-termImplement measures to protect coastal areas from sea level rise and storm surges. This includes building seawalls, restoring coastal vegetation, and relocating infrastructure away from vulnerable areas.
Est. cost: Very High
Council & Emergency Services
Explore Wembley Risk Reports
View other climate risk assessments for Wembley:
Frequently Asked Questions
Is Wembley at risk of flooding?
Based on available data, Wembley 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 Wembley?
Insurance costs for flood cover in Wembley 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 Wembley?
Yes, flood risk can affect property values in Wembley. 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 Wembley?
Elevation is a critical factor in flood risk. Properties at higher elevations within Wembley 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 Wembley is exposed to high bushfire risk?
ClimateNest's hazard overlay maps 8.9% of Wembley in high-risk zones for bushfire, with a further 78.3% 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 Wembley Safe from Climate Risk?
Enter your address below for an instant climate risk assessment for Wembley, Western Australia, covering flood, bushfire, sea level rise and more.
What A$69 could save you from
*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