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.

  • Storm in the Yasawa Islands, Fiji.

    Increased tropical cyclone activity possible for parts of the Southwest Pacific

    News article
    The Southwest Pacific could experience at least four severe tropical cyclones reaching category 3 or higher this season, according to the 2026/27 Tropical Cyclone Outlook coordinated by Earth Sciences New Zealand.
  • El niño August 2026

    El Niño 2026: What you need to know

    News article
    New Zealand will feel the impacts of a ‘Very Strong’ El Niño event over spring and summer of 2026/27.
  • Matariki star cluster

    Much of New Zealand in for stargazing success this Matariki weekend

    News article
    Hoping for a glimpse of the Matariki stars over the long weekend?
  • Wairarapa drought.

    El Niño declared, expected to intensify into one of the strongest on record

    Media release
    Earth Sciences New Zealand has confirmed that El Niño conditions have been reached in the tropical Pacific and are expected to strongly influence New Zealand’s weather into 2027.
  • Rural Wairarapa drought 2017

    From our forecasters: Winter 2026 may see the start of a formidable El Niño event 

    La Niña has only just ended, but already we are anticipating a potentially rapid flip to its opposite phase – El Niño.  
  • Hotspot Watch 23 April 2026

    Hotspot
    This is the final Hotspot Watch update for this season. The Hotspot Watch will return during spring 2026.
  • smdanom_20260416

    Hotspot Watch 17 April 2026

    Hotspot
    A weekly update describing soil moisture patterns across the country to show where dry to extremely dry conditions are occurring or imminent.
  • Hotspot Watch 10 April 2026

    Hotspot
    A weekly update describing soil moisture patterns across the country to show where dry to extremely dry conditions are occurring or imminent.
  • Hotspot Watch 2 April 2026

    Hotspot
    A weekly update describing soil moisture patterns across the country to show where dry to extremely dry conditions are occurring or imminent.
  • Glacier banner

    Fifty years of observations, no reversal of glacier climate damage

    Media release
    Fifty years on from the first aerial survey of our Southern Alps glaciers, late snow and variable summer weather delivered a temporary reprieve from rapid ice loss, says Earth Sciences New Zealand.  
  • (no image provided)

    Hotspot Watch 27 March 2026

    Hotspot
    A weekly update describing soil moisture patterns across the country to show where dry to extremely dry conditions are occurring or imminent.
  • Hotspot Watch 19 March 2026

    Hotspot
    A weekly update describing soil moisture patterns across the country to show where dry to extremely dry conditions are occurring or imminent.