On 1 July 2025, NIWA merged with GNS Science to become Earth Sciences New Zealand.

Riverflows, January - March 2015

River flows were below normal in March and for the three months January to March over most of New Zealand.

River flows were below normal in March and for the three months January to March over most of New Zealand. River flows in Canterbury and the northern South Island, and much of the central and southern North Island were far below normal for the time of year.

Riverflows for January to March 2015