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

Atmospheric analysis

NIWA has been using advanced scientific instruments to measure atmospheric trace gases and isotopes for over 50 years.

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    NIWA Hydro Web Portal

    NIWA's Hydro Web Portal provides river flow and water quality monitoring data from NIWA’s Benchmark river monitoring network.
  • National and regional climate maps

    Research Project
    Maps of average annual rainfall, temperature and other climate variables have been produced for all of New Zealand, based on the period 1981–2010.
  • Careers at NIWA

    Find out more about working at NIWA
  • Raglan A, Cam-era monitoring site

    Raglan A

    This web camera is available thanks to the support of Waikato Regional Council.
  • Lake Castalia on the upper reaches of the Wilkin River North Branch near Wanaka. Image is looking southwest back down the valley.

    Environmental monitoring

    NIWA collects a vast range of environmental information about New Zealand’s environment from the sky to the seafloor.
  • Pulp and paper

    Wood chips and plant material make pulp that is used to produce paper products.
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    Electric Fishing Machine - NIWA EFM300

  • Kaitiaki Tools

    Service
    Easing the resource consent process
  • Mahinga kai - what species interests you?

    In Kaitiaki Tools the term mahinga kai generally refers to indigenous freshwater species that have traditionally been used as food, tools, or other resources.
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    Meteorologist for a day

    Within a range of meaningful contexts students will be able to make statements about implications and possible actions consistent with the results of a statistical investigation and to find and authenticate data measures such as mean, median, mode, inter-quartile range, and range.
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    Tuna - glass eels

    Glass eels (about 5.5 to 7.0 cm) arrive in fresh water during spring, especially during September and October, although they may be present from July to December.