Flood Risk in Mermaid Beach, QLD: 2026 Assessment

Mermaid Beach, located in Queensland, 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 Queensland.

Some areas near the creek are prone to flash flooding during heavy rain.

Mermaid Beach faces a moderate risk of flooding due to its low-lying coastal location and proximity to waterways. Heavy rainfall events can lead to stormwater and riverine flooding.

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.

Mermaid Beach 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 82% 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 Mermaid Beach.

Mermaid Beach (postcode 4218) 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 extreme wind (14.8% of land in high-risk zones), coastal inundation (13.6% of land in high-risk zones), tropical cyclone (10.6% of land in high-risk zones). Exposure is not uniform across Mermaid Beach — individual properties can sit well above or below these averages, so an address-level check is recommended before buying, selling or insuring.