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

NOAA SST Anom May 2012

Differences from average global sea surface temperatures for 6th May to 2nd June 2012. Map courtesy of NOAA Climate Diagnostics Centre (http://www.cdc.noaa.gov/map/images/sst/sst.anom.month.gif).