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

  • Climate data and activities

    We provide an overview of New Zealand climate data for use in school projects.
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    Electronic Weather Station - NIWA EWS

    These gather top-quality data and are used throughout New Zealand in the National Climate Network.
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    UVI smartphone apps

    Several apps that provide forecasts of the UV index (UVI) are available for smartphones. 
  • SolarView help

    This calculator estimates the solar energy that can be collected by a solar capture device (solar panel) at a given address, panel direction and roof slope.
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    Inanga

    Inanga are the predominant species in the modern whitebait fishery.
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    Impacts of wood processing

    Impacts of timber processing activities on water quality and mahinga kai.
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    Soil Moisture Deficit (SMD)

    The 3-panel Soil Moisture Deficit (SMD) map shows the historical soil moisture deficit at the date shown (left), the soil moisture deficit at the same time last year (middle) and the current soil moisture deficit (right).
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    What is the chance of a warm summer in Invercargill?

    In this activity you will analyse the Southern Oscillation Index and investigate the chances of getting below normal, normal or above normal summer temperatures in Invercargill.
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    Map Chatham

    Education Resource
    Extremes of temperature are rare as the Chatham Islands are small land masses surrounded by sea.
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    Marine geological hazards

    Education Resource
    New Zealand faces a variety of hazards associated with undersea geological activity.
  • New Zealand Palaeotsunami Database

    Software Tool/Resource
    The New Zealand Palaeotsunami Database (Database) brings together all known information about tsunamis that occurred prior to written records.
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    Tuna - recreational fisheries

    The majority of New Zealanders are able to recall a story about catching eels when they were children.