The tables below show the probabilities (or percent chances) for each of three categories: above average, near average, and below average. In the absence of any forecast guidance there would be an ...

NIWA's Crispin Middleton is part of the team monitoring the caulerpa infestation. Photo: Irene Middleton, NIWA. NIWA is part of a multi-agency biosecurity response to an invasive seaweed discovered at ...

January was Auckland's wettest month since records began, according to meteorologists. The Central Auckland Rainfall series recorded a total of 539 mm of rain at Albert Park, smashing the previous ...

Stories of tremendous forest fires, huge storm events, and suffocating heatwaves have dominated headlines over the past few years. We instinctively feel that our weather is getting wilder. Are we ...

Scientists analysing end-of-summer snowline survey photos have estimated that 13 million cubic meters of ice have been lost from just one glacier from 2016 to 2019. NIWA climate scientist Dr Andrew ...

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 ...

The website Ian Wishart has based his opinions on is not New Zealand’s national climate database. Wishart has conflated the Historic Weather Events website with the New Zealand National Climate ...

A huge global study has used teabags to measure carbon storage in wetlands. Scientists, including those from NIWA, buried 19,000 bags of tea in 180 wetlands across 28 countries. This included three ...

Microbes - such as those living in wetlands, landfills or the digestive tracts of livestock – are behind unprecedented spikes in methane emissions, according to new research from the University of ...

Temperature 2024 was New Zealand’s 10th-warmest year on record, based on NIWA’s seven station series which begins in 1909. Annual temperatures were above average (0.51-1.20°C above the annual average) ...

We’re only halfway through the year, but new NIWA analysis shows some parts of New Zealand have already recorded more than a year’s worth of rain. It was the wettest first half of the year on record ...

New maps from NIWA and the Deep South National Science Challenge show areas across Aotearoa New Zealand that could be inundated by extreme coastal flooding. They show a large storm-tide with the ...