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

  • Antarctic diver and jellyfish

    Statement of Core Purpose

    The Statement of Core Purpose spells out why the Government owns Crown Research Institutes and what it expects from them.
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    Map N South

    Education Resource
    As much of this climate zone is sheltered by high country to the west, south and in some areas to the east, it is the sunniest region of New Zealand.
  • South coast waves

    Wave hazard research

    Research Project
    NIWA collects wave data, develops and verifies wave forecasting systems, and is developing and producing wave projections.
  • Organisational sustainability

    NIWA's goal is to provide the science to help New Zealanders transition to a sustainable future.
  • Other vessels

    Facility
    NIWA operates about 30 other Maritime New Zealand-certified vessels based at Bream Bay, Auckland, Hamilton, Rotorua, Turangi, Wellington, Nelson, Greymouth, Tekapo, Christchurch, and Dunedin.
  • Water quality tools

    Find out more about our water quality tools.
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    Water temperature and hydro

    How do hydro-electricity activities potentially influence waterway temperatures?
  • Blogs

    Follow NIWA's scientists as they explore the natural world, make new discoveries and share how people use their science.
  • Waikato

    Waikato exhibits a range of climates due to the variety of landscapes in the region.
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    Tsunami

    Education Resource
    Tsunami is a Japanese word meaning great wave in harbour.
  • Restoration and enhancement of piharau / kanakana / lamprey

    Research Project
    NIWA is leading a new six-year research project that seeks to increase our understanding of piharau/kanakana/lamprey, using Mātauranga Māori, social science and biophysical science approaches.
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    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.