Climate

Latest news

One of the best ways to reduce the likelihood of Covid-19 being transmitted in Aotearoa New Zealand classrooms is simply by opening doors and windows to create natural ventilation, say NIWA air quality experts.
New NIWA-led research shows increasing flood risk is going to be what leads people to make changes to adapt to sea-level rise.
Aotearoa New Zealand has just experienced its warmest winter on record – well exceeding the previous record which was set just last year.
A record-equalling top temperature of 23ᵒC in Akaroa on Tuesday prompted a feeling of déjà vu for NIWA forecaster Ben Noll.

Our work

NIWA is leading a New Zealand partnership to map the South and West Pacific Ocean's seabed as part of a worldwide initiative to map the entire globe’s seafloor.
Clouds over the ocean, and how they trap or emit radiation from the sun, are partly influenced by the biology, biogeochemistry and physics of the surface ocean below.
NIWA’s research into forecasting weather systems aims to increase the resilience of New Zealand communities to weather-related hazards.
Our Future Climate New Zealand is an interactive website that lets you to look at projections for a number of climate variables for New Zealand between now and 2100.

Latest videos

Glacier melt: A Time Capsule

Since 2016 enough ice has melted from the South Island’s Brewster Glacier to meet the drinking water needs of all New Zealanders for three years.

Tropical Cyclone Outlook: November 2020-April 2021

The NIWA and MetService assessment of named tropical cyclone (TC) activity indicates 8 to 10 named TCs could occur in the Southwest Pacific basin between November 2020 and April 2021. This seasonal outlook is for normal to below normal activity in terms of overall named cyclone systems in the region. 

2019 New Zealand Climate Summary
NIWA climate scientist Nava Fedaeff presents the NIWA annual climate summary for New Zealand 2019.
Once in a while the weather becomes much more dangerous – what meteorologists call severe weather.
When we talk about the future, we often talk about climate change.
The climate of New Zealand is incredibly varied for a country of its size.
Have you ever wondered what makes the climate during one season more extreme than another?
Forecasting future weather starts by knowing what the weather is doing right now – everywhere in the world!
Sometimes wind can feel like a bit of a mystery because we can feel it, but not see it.
During June, the NINO3.4 Index anomaly (in the central Pacific) was 0.12˚C. Upper oceanic heat content decreased notably across the east central equatorial Pacific.
Warm start to winter for much of the country
Among the multitude of New Zealand climate statistics there is one record that continues to be broken month after month.
Rainfall is about equally likely to be near normal or below normal in the west of the South Island, about equally likely to be near normal or above normal in the east of the North Island, and most likely to be near normal in all other regions.
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.
Is today sunny, cloudy, windy, rainy, or stormy? All of those things are part of the weather...
Developed for teachers, these lessons offer intermediate age students an engaging and interactive way to learn about Aotearoa’s wild and mild weather and climate patterns.
Warm and dry for the middle to lower South Island
A dry autumn for most areas of the country.
During May the NINO3.4 Index anomaly (in the central Pacific) for May was +0.01˚C, with upper oceanic heat content continuing to decrease across the equatorial Pacific.
Oceanic ENSO-neutral conditions will very likely persist over the next three months. The long-standing climate drivers that have contributed to dryness over much of NZ are expected to influence our weather for at least the first half of the winter season.
El Niño Southern Oscillation (ENSO) neutral conditions continued during April 2020. The Southern Oscillation Index (SOI) was +0.1.
This is one of the most extreme drought events for Auckland in modern times and similar to one experienced in 1993/94.
Seven weeks of lockdown has provided evidence of how pollution can vanish overnight with benefits for the environment and individuals, says NIWA air quality scientist Dr Ian Longley.
Please note that this will be the final Hotspot Watch update for this season. Weekly Hotspot Watches will return in the spring.
For more than a century, a network of volunteers across New Zealand have been measuring the climate and weather and sending their observations each month to be entered into the New Zealand climate database.
Very dry for many parts of New Zealand.
Analysis of drought conditions across New Zealand this year shows it is one of the most severe on record for some regions.
Sharp cold snaps are possible during the month of May as fronts move onto the country from the Tasman Sea and Southern Ocean.

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