Flood Risk in Thursday Island, QLD: 2026 Assessment

Thursday Island, 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.

Thursday Island is surrounded by the Torres Strait, making it highly exposed to tidal influences and storm surges. Low elevation increases flood risk.

Thursday Island faces a high risk of flooding due to its low-lying coastal location and susceptibility to heavy rainfall events. Sea level rise and storm surges exacerbate this risk.

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.

Thursday Island sits within ClimateNest's suburb-level hazard model for flood risk. 20.4% of the suburb's land area is mapped in high-risk flood zones and 70.6% 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 Thursday Island.

Thursday Island (postcode 4875) 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 (20.4% of land in high-risk zones), bushfire (14.5% of land in high-risk zones), surface flood (10.2% of land in high-risk zones). Exposure is not uniform across Thursday Island — individual properties can sit well above or below these averages, so an address-level check is recommended before buying, selling or insuring.