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.

  • Tropical Cyclone Outlook: November 2021-April 2022

    The NIWA and MetService assessment of named tropical cyclone (TC) activity indicates 9 to 12 named TCs could occur in the Southwest Pacific basin between November 2021 and April 2022. The seasonal outlook is for normal to slightly above normal activity in terms of overall named TCs in the region.
  • Pacific Sunrise

    Climate Data for the Environment Services Client (CliDEsc)

    Research Project
    CliDEsc is a web-based content management system and product generator library developed by NIWA in consultation with National Meteorological and Hydrological Services in the Pacific region, and with the Australian Bureau of Meteorology.
  • Hotspot Watch 18 November 2021

    Hotspot
    A weekly update describing soil moisture patterns across the country to show where dry to extremely dry conditions are occurring or imminent. Regions experiencing significant soil moisture deficits are deemed “hotspots”. Persistent hotspot regions have the potential to develop into drought.
  • Hotspot Watch 11 November 2021

    Hotspot
    A weekly update describing soil moisture patterns across the country to show where dry to extremely dry conditions are occurring or imminent. Regions experiencing significant soil moisture deficits are deemed “hotspots”. Persistent hotspot regions have the potential to develop into drought.
  • Hotspot Watch 4 November 2021

    Hotspot
    A weekly update describing soil moisture patterns across the country to show where dry to extremely dry conditions are occurring or imminent. Regions experiencing significant soil moisture deficits are deemed “hotspots”. Persistent hotspot regions have the potential to develop into drought.
  • Coastal flooding likely to be main driver for adaptation

    Media release
    New NIWA-led research shows increasing flood risk is going to be what leads people to make changes to adapt to sea-level rise.
  • It’s the warmest winter on record - again

    Media release
    Aotearoa New Zealand has just experienced its warmest winter on record – well exceeding the previous record which was set just last year.
  • The weather’s better in lockdown, right?

    Media release
    A record-equalling top temperature of 23ᵒC in Akaroa on Tuesday prompted a feeling of déjà vu for NIWA forecaster Ben Noll.
  • Stewart Island gets new electronic weather station

    Media release
    A closer eye is now being kept on Stewart Island’s climate thanks to the installation of a new electronic weather station.
  • Scientists reveal how landmark ban gave planet fighting chance

    Media release
    Without the global CFC ban we’d already be facing the reality of a “scorched earth”, according to researchers measuring the impact of the Montreal Protocol.
  • Record warmth so far this winter

    Media release
    New Zealand has just experienced its warmest June and July since records began in 1909 and – with one month to go - is on track for its second successive warmest winter on record.
  • The fine art of forecasting

    Feature story
    Susan Pepperell looks at how high-resolution forecasting is driving sharper decision making – from deep in the back country to the finish line of the America’s Cup.