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Information about our varying climate is critical for managing resources and reducing risks.
NIWA's National Climate Centre offers a range of commercial consultancy services to government, businesses and individuals.
NatHERS climate files 2012
Obtaining climate data from NIWA
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Climate information and resources
At NIWA we believe knowledge is there to be shared, which is why we make as much information as we can publicly available.
El Niño and La Niña
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Find out more about some of our climate-related work.
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Maps of average annual rainfall, temperature and other climate variables have been produced for all of New Zealand, based on the period 1981–2010.
Climate change scenarios for New Zealand
Projections of how climate change is likely to affect New Zealand.
Overview of New Zealand's climate
Find information about New Zealand's temperature record and climate change in our information and resources section.
Information about the NZ temperature record.
Accessing Free Climate Data
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Annual Climate Summary
Snow trends 18th August
18 August 2016
After one of the most tranquil weeks of the season, winter returns to the South Island this weekend, delivering some fresh powder—music to the ears of the country’s snow hounds.
12 August 2016
After the coldest and snowiest stretch of winter last week, there’s some settled weather in the forecast for anyone heading to the ski slopes.
Heavy snow forecast sends NIWA staff outdoors
3 August 2016
NIWA scientists and field teams will be heading outdoors for the first snow mobilisation of winter later this week to make the most of what is expected to be the largest and longest wintry blast of the year.
Tropical winds yield late-July record warmth
25 July 2016
A number of temperature records toppled across New Zealand over the weekend as tropical winds from New Caledonia and Vanuatu streamed over the country.
Atmospheric river of moisture headed for New Zealand
6 July 2016
A series of low pressure systems will trek across the Tasman from tonight into the weekend, resulting in locally heavy rain and the potential for flooding and slips for the east of the North Island.