Flood hazard for New Zealand flood plains

Get detailed flood maps showing which areas of your region's floodplains are at risk in a major (100-year) flood. You can explore how that risk changes as the climate warms, with maps available for current conditions and up to 3°C warmer.

These maps show where the water could reach, and how deep or fast it might be during heavy rain events. All main floodplains across Aotearoa are included (where LiDAR data exists), and the data is free for non-commercial use.

^{Photo: LINZ Aerial by Toitū Te Whenua LINZ, licensed for reuse under CC BY 4.0}