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.

  • Hotspot Watch 27 November 2020

    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 November 2020

    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.
  • Marine heatwave conditions forming: NIWA

    Media release
    NIWA forecasters say a marine heatwave is forming around parts of New Zealand after sea surface temperatures (SSTs) warmed considerably last month.
  • Hotspot Watch 12 November 2020

    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 5 November 2020

    Hotspot
    In the North Island, moderate rainfall amounts of generally 25-50 mm occurred across much of Northland and Auckland during the past week, with generally 15-30 mm for much of the western North Island and the western Wellington Region. Conversely, the east coast (including Wairarapa) saw generally light rainfall amounts.
  • Hotspot watch 29 October 2020

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

    Media release
    Once a year, technicians from NIWA’s North Island Field Team don helmets and head lamps to check a network of CO2 sensors in the world-renowned Waitomo Caves. The sensors help make sure that heavy breathing visitors aren’t wrecking the caves’ precious natural structures and microclimate.
  • Tropical cyclone outlook Nov 2020 - Apr 2021

  • Hotspot Watch 22 October 2020

    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 16 October 2020

    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 8 October 2020

    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.
  • NIWA research vessel returns home after epic voyage

    Media release
    After 75 nights at sea all the temporary master of NIWA research vessel Kaharoa could think about today was getting off the ship and having a beer.