Temperature Temperatures were above average (0.51°C to 1.20°C above average) or well above average (>1.20°C above average) for most of the North Island, Marlborough, northern and eastern Canterbury, ...

A La Niña Watch remains in effect, with a little over 50% chance that La Niña officially develops by the end of the year. However, this event is likely to be weak and short-lived and might stay below ...

NIWA is using machine learning to forecast flood inundation in a fraction of the time required to run physical models. NIWA Climate, Atmosphere & Hazards platform manager Nava Fedaeff leads the ...

In 2023, Cyclone Gabrielle caused loss of life and significant damage to buildings, infrastructure and primary production, particularly across Hawke’s Bay and Tairāwhiti. The most significant impacts ...

RiskScape has been used to assess climate-related coastal flood risk in the Pacific. The tool provides critical information to allow six Pacific nations – Cook Islands, Republic of Marshall Islands, ...

There is a 60% chance that La Niña will develop by January 2025. Tropical Pacific trade winds will continue to nudge the ocean in a La Niña-like direction. An alternative measure of central Pacific ...

A mystery specimen has been identified as a species never documented in New Zealand waters. Thousands of specimens were collected during NIWA’s three-week Ocean Census voyage to the unexplored Bounty ...

Forecasting sea surface temperatures several months in advance is challenging. To give us insights into what might happen around Aotearoa New Zealand in the months to come, NIWA scientists have ...

The NIWA and MetService assessment of tropical cyclone (TC) activity for the coming season indicates normal to below normal activity. (Tropical cyclones are categorised in strength from 1 to 5, with 5 ...