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.

  • Swamp kauri providing a window to the past for scientists

    Media release
    Ancient swamp kauri is being used by NIWA scientists to reveal the secrets of past climates.
  • Five more days from the official hottest summer on record

    Media release
    Despite a sub-tropical storm and two ex-tropical cyclones, this summer is about to become the hottest in history.
  • Blog: atmospheric gas measurements - 21 February

    21 February 2018John McGregor from NIWA checks on the instruments that measure atmospheric gases throughout our voyage.
  • Auckland region climate change projections and impacts | Auckland Council

  • Warmer seas make whales more difficult to find and track

    Media release
    A two-week expedition to tag blue whales in New Zealand waters for the first time, almost came up empty due to warmer sea temperatures causing the animals to change their behaviour.
  • NIWA's Hotspot Watch for 9 February 2018

    Hotspot
    Hotspots in the North Island are located across Gisborne, the Tararua District, and in parts of west coastal Taranaki. The only hotspot in the South Island is in Southland.
  • NIWA's Hotspot Watch for 2 February 2018

    Hotspot
    North Island hotspots continue to be found across much of Gisborne, northern Hawke’s Bay, and Tararua west to Horowhenua and Kapiti Coast. A small hotspot has also emerged across the east coast of the Coromandel Peninsula. The only hotspot in the South Island continues to be located in Southland, but it has decreased significantly in size and strength due to the recent heavy rainfall.
  • NIWA's Hotspot Watch for 25 January 2018

    Hotspot
    Current North Island hotspots are found in coastal Gisborne, interior Wairoa, as well as small portions of Kapiti Coast, Horowhenua, and Tararua. The only hotspot in the South Island continues to be a sizeable one which covers much of southern and interior Otago and nearly all of Southland.
  • NIWA's Hotspot Watch for 18 January 2018

    Hotspot
    A weekly update describing soil moisture across the country to help assess whether severely to extremely dry conditions are occurring or imminent. Regions experiencing these soil moisture deficits are deemed “hotspots”. Persistent hotspot regions have the potential to develop into drought.
  • NIWA's Hotspot Watch for 11 January 2018

    Hotspot
    A weekly update describing soil moisture across the country to help assess whether severely to extremely dry conditions are occurring or imminent. Regions experiencing these soil moisture deficits are deemed “hotspots”. Persistent hotspot regions have the potential to develop into drought.
  • 2017 Annual Climate Summary 8 January 2018

  • NIWA's Hotspot Watch for 21 December 2017

    Hotspot
    A weekly update describing soil moisture across the country to help assess whether severely to extremely dry conditions are occurring or imminent. Regions experiencing these soil moisture deficits are deemed “hotspots”. Persistent hotspot regions have the potential to develop into drought.