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

Climate & Weather

Understanding our variable and changing climate is critical for managing resources and reducing risks.

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    'Eleven-station' series temperature data

    Research Project
    Temperature trends from 1930s to present day
  • West Coast

    West Coast is New Zealand’s wettest region, and this may be attributed to its exposure to the predominant westerly airflow over the country, combined with the orographic effect of the Southern Alps.
  • Climate data and activities

    We provide an overview of New Zealand climate data for use in school projects.
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    Map Alpine

    Education Resource
    Mountainous areas are subject to heavy snowfalls, high winds, and low temperatures. Semi-permanent snow and ice fields exist at about 1000-1100 metres during winter.
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    West Coast

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    NIWA staff profile: Nava Fedaeff

    Feature story
    At the age of seven, NIWA’s youngest climate scientist, Nava Fedaeff, swapped sub-arctic Siberia for balmy Auckland – and her first job was to learn to swim.
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    How do we determine past climate?

    Information about past climate is obtained from piecing evidence together from various sources.
  • Otago

    The climate of Otago is perhaps the most diverse of any region in New Zealand.
  • PARTneR (Pacific Risk Tool for Resilience)

    Research Project
    Understanding how hazards impact people and the environment provides the foundation for informed decision making for a resilient Pacific.
  • Annual

    Publication series
    Annual Climate Summaries from 2000 to present.
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    Mean 10cm earth temperature (°C)

    These datasets are available in a range of formats.
  • Drought indicator charts