Flood Risk in Osborne, SA: 2026 Assessment

Osborne, located in South 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 South Australia.

Check with the local council for specific flood risk information for your property.

Flooding is a notable concern in Osborne, with potential for riverine and flash flooding. Climate change is expected to increase rainfall intensity, exacerbating flood 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.

Osborne sits within ClimateNest's suburb-level hazard model for flood risk. 2.5% of the suburb's land area is mapped in high-risk flood zones and 80% 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 Osborne.

Osborne (postcode 5017) 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 (13.9% of land in high-risk zones), surface flood (9.4% of land in high-risk zones), riverine flood (2.5% of land in high-risk zones). Exposure is not uniform across Osborne — individual properties can sit well above or below these averages, so an address-level check is recommended before buying, selling or insuring.