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Average soil moisture deficit onset and termination maps
Maps of the average first and last dates of soil moisture deficit are shown here. -
Southland
Southland is both the most southerly and most westerly part of New Zealand and generally is the first to be influenced by weather systems moving onto the country from the west or south. -
Monthly
Publication seriesMonthly climate summaries from December 2001 to the present. -
Mean number of days of ground frost
These datasets are available in a range of formats. -
Virtual Climate Station data and products
Virtual climate station estimates are produced every day, based on the spatial interpolation of actual data observations made at climate stations located around the country. -
Hotspot Watch Updates
This weekly update helps assess likelihood of extremely dry weather preceding a drought. -
Map Chatham
Education ResourceExtremes of temperature are rare as the Chatham Islands are small land masses surrounded by sea. -
NZ's warmest and wettest winter on record
Media release06 June 2017NIWA’s climate scientists can now confirm what you may have suspected. After carefully poring through more than a century’s worth of data, it has been officially determined that winter 2022 was Aotearoa New Zealand’s warmest and wettest on record. -
What is ocean acidification?
Education ResourceOcean acidification is the name given to the lowering of pH of the oceans as a result of increasing carbon dioxide (CO2) in the atmosphere.
