2023 Auckland Anniversary Weekend floods
Beginning on Friday, 27 January 2023, regions across the upper North Island of New Zealand experienced widespread catastrophic floods caused by heavy rainfall, with Auckland being the most significantly affected as the Auckland Anniversary holiday weekend began.
Map of the North Island, where the floods occurred | |
| Date | 27 January 2023 – 2 February 2023 (7 days) |
|---|---|
| Location | Upper North Island, New Zealand |
| Deaths | 4 |
| Property damage | Over NZ$1.95 billion |
Severe flash flooding occurred across Auckland from around 5:00 pm on 27 January local time, after heavy rain in the afternoon. Flooding was widespread across the city, with West Auckland and North Shore being the worst affected areas. NIWA reported that an entire summer's worth of rain fell within one day in what it described as a 1-in-200-year event. The event is considered to be the worst floods in Auckland's modern history. Over the following days other areas of the upper North Island were impacted.
Minister of Finance Grant Robertson stated at the time that the event was New Zealand's costliest non-earthquake event ever, although this record was broken only two weeks later when Cyclone Gabrielle impacted the country.