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

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    Kōaro

    Kōaro are excellent climbers and like clear, swiftly flowing, forested streams.
  • Working with schools

    We sponsor regional science and technology fairs around New Zealand and support learning programmes that bring science into the classroom.
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    Tuna - identification

    There are several ways to tell the three New Zealand eel species apart.
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    Mean monthly wet-days

    These datasets are available in a range of formats.
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    Map I South

    Education Resource
    The climate of this zone is largely dependent on the lie of the Southern Alps to the west, but many areas are also sheltered by high country to the south and east.
  • Tornado damage Whenuapai.

    Extreme weather - winds and tornadoes

    Education Resource
    Due to its position in the 'Roaring Forties', a belt of strong winds in the Southern Hemisphere which generally occur between the latitudes of 40 and 49 degrees, as well as its small size, New Zealand is a windy country.
  • Science

    An overview of Science at NIWA
  • Critter of the week

    In this blog series, we feature a new critter from our expansive invertebrate collection including pictures of specimens in their unique habitat. The blogs also feature news, links and fun facts that showcase New Zealand’s fascinating marine fauna.
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    RV Ikatere

    Facility
    A versatile inshore vessel, RV Ikatere is equipped with high-precision multibeam and sub-bottom profiler transducers for surveying and mapping the seabed.
  • Shifting Sands – the end of a Kiwi dream

    Feature story
    The Kiwi dream of owning a beachfront property with panoramic views of the ocean is under threat—and not just for financial reasons.
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    Common climate and weather terms

    Education Resource
    Confused about El Niño, or can't tell the difference between an Anticyclone and an Isobar? Let us help.