๐Ÿ“ฎ Winmalee postcode: 2777

Flood Risk in Winmalee, NSW: 2026 Assessment

Winmalee, New South Walesยท Blue Mountainsยท 2777
Winmalee has a moderate risk of flooding, primarily from local creeks and stormwater runoff. Properties in low-lying areas are most vulnerable.Updated 2 May 2026

Flood Risk Score

6.5/10

Winmalee has a moderate risk of flooding, primarily from local creeks and stormwater runoff. Properties in low-lying areas are most vulnerable.

Key Facts

Flood Risk
Winmalee has a moderate risk of flooding, primarily from local creeks and stormwater runoff. Properties in low-lying areas are most vulnerable.
Trend
increasing
Suburb
Winmalee, NSW
Overall Risk
High
Postcode
2777
Highest high-risk exposure
9.7% of land (riverine flood)

Flood Risk Analysis

Winmalee, located in New South Wales, 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 New South Wales.

Historical flood data indicates localized flooding during heavy rainfall events. Council is undertaking flood studies to better understand and manage flood risks.

Winmalee has a moderate risk of flooding, primarily from local creeks and stormwater runoff. Properties in low-lying areas are most vulnerable.

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.

Winmalee sits within ClimateNest's suburb-level hazard model for flood risk. 9.7% of the suburb's land area is mapped in high-risk flood zones and 80.8% 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 Winmalee.

Winmalee (postcode 2777) 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 riverine flood (9.7% of land in high-risk zones), bushfire (9.6% of land in high-risk zones), surface flood (6% of land in high-risk zones). Exposure is not uniform across Winmalee 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 WaterwayYarramundi Creek
Elevation Range200-400m
Flood Zone ClassificationIdentified flood zones along Yarramundi Creek and associated tributaries.

Historical Events

2022
Moderate

Heavy rainfall in 2022 caused localized flooding in low-lying areas of Winmalee.

Adaptation & Mitigation Actions

Develop and implement a comprehensive bushfire management plan.

Immediate

This plan should include strategies for fuel reduction, early warning systems, and community education.

Est. cost: Medium

Upgrade stormwater infrastructure to mitigate flood risk.

Near-term

This includes increasing the capacity of drainage systems and constructing flood detention basins.

Est. cost: High

Implement heatwave preparedness strategies.

Near-term

This includes establishing cooling centers, providing public education on heat safety, and ensuring access to healthcare for vulnerable populations.

Est. cost: Low

Promote climate-resilient building design.

Long-term

Encourage the use of fire-resistant materials, elevated foundations, and passive cooling techniques in new construction and renovations.

Est. cost: Medium

Enhance community awareness and education on climate risks.

Immediate

Conduct workshops, distribute educational materials, and utilize social media to inform residents about climate change impacts and adaptation measures.

Est. cost: Low

Council & Emergency Services

Blue Mountains City Council
Emergency Services

Data last updated: 2 May 2026

Explore Winmalee Risk Reports

Frequently Asked Questions

Is Winmalee at risk of flooding?

Based on available data, Winmalee 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 Winmalee?

Insurance costs for flood cover in Winmalee 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 Winmalee?

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

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

ClimateNest's hazard overlay maps 9.7% of Winmalee in high-risk zones for riverine flood, with a further 80.8% 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 Winmalee Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Winmalee, New South Wales, 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