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.

Drought forecasting dashboard

The drought forecasting tool uses innovative climate modelling, the latest in machine learning and other data-driven techniques to predict rainfall 35 days ahead. Helping farmers and growers better prepare for periods of dryness and drought.

Climate and weather

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    Mean daily maximum temperatures (°C)

    These datasets are available in a range of formats.

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    National

    National climate maps
    Climate and weather

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    El Niño maps and charts

    View a collection of maps showing the impact of past El Niño and La Niña events.

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    Map E South

    Education Resource
    The climate of this zone is greatly dependent on the lie of the massive Southern Alps to the west.
    Climate and weather

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    The Intergovernmental Panel on Climate Change (IPCC)

    Education Resource
    The Intergovernmental Panel on Climate Change (IPCC) is charged with assessing the most up to date scientific, technical and socio-economic research on climate change.
    Climate change
    Climate modelling and projections

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    Sea-level rise

    Education Resource
    One of the major consequences of climate change is rising global sea levels.
    Climate change adaptation
    Tides
    Coastal hazards

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    Floods

    Education Resource
    River floods occur when water spills from a river channel onto land that is normally dry, and are one of New Zealand's costliest natural hazards.
    Weather forecasting
    Hazards
    Weather hazards

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    Mean monthly temperatures (°C)

    These datasets are available in a range of formats.

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    Northland

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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.
    Climate and weather

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    Farming and the primary sector

    Farmers are making business decisions everyday which are influenced by environmental factors. We can help farmers to improve decision-making, mitigate farm environment risk, and to become more productive, efficient, competitive and sustainable.

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    NIWA staff profile: Nava Fedaeff

    Feature story
    06 June 2017
    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.