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NIWA climate scientists are asking for volunteers to help give its historic weather project a quick, sharp boost.
There are about 800km between the southern and northern tips of Tonga - and a lot of ocean.
In the past 10 years, more weather records have been broken than in any other time in New Zealand’s history.
If Santa is quick he can hop on a ridge of high pressure for his big trip to New Zealand very soon.

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2019 New Zealand Climate Summary
NIWA climate scientist Nava Fedaeff presents the NIWA annual climate summary for New Zealand 2019.
Annual Climate Summary for 2018

New Zealand’s equal-2nd warmest year on record. Annual temperatures were above average across the majority of New Zealand, including much of the North Island as well as the western and southern South Island. See complete 2018 Annual Climate Summary details.

Weather Tips - What is El Niño?

El Niño. We hear it being brought up in the news quite a bit, but what does it actually mean? No, it's not a type of yoghurt!

NIWA Weather forecasts and rainfall maps for New Zealand towns and cities.

NIWA climate scientists are asking for volunteers to help give its historic weather project a quick, sharp boost.
2019 New Zealand Climate Summary
NIWA climate scientist Nava Fedaeff presents the NIWA annual climate summary for New Zealand 2019.
The weakening of the Southern Annular Mode and the Indian Ocean Dipole and the forecast for ENSO to remain neutral over the next three months indicate the absence of strong, persistent climate drivers for New Zealand.
Wet end to the year for much of New Zealand.
There are about 800km between the southern and northern tips of Tonga - and a lot of ocean.
In the past 10 years, more weather records have been broken than in any other time in New Zealand’s history.
If Santa is quick he can hop on a ridge of high pressure for his big trip to New Zealand very soon.
Temperatures for the summer season are expected to be above average for New Zealand, apart from the west of the South Island where there are about equal chances for near average or above average temperatures.
Novel handwriting recognition project casts new light on historic weather data.
Average temperatures overall with variable rainfall patterns.
For October to December, air pressure is forecast to be lower than normal in the New Zealand region, especially south of the country. This is expected to be associated with a westerly quarter air flow anomaly, particularly during November and December. Occasional easterly quarter winds are possible during October.
Variable temperature and rainfall patterns with frequent southwesterly winds.
7th-warmest winter on record and near normal rainfall
The central Pacific El Niño event that arrived in March 2019 has ended, giving way to ENSO neutral conditions, owing to cooling sea surface temperatures (SSTs) in the tropical Pacific and a neutral Southern Oscillation Index (SOI) during August.
NIWA meteorologists are keeping an eye on an unusual atmospheric phenomenon that is amassing in the polar stratosphere.
New Zealand’s 2nd-warmest July on record.
Weather forecasters will not be affected by Vodafone’s 5G network initial roll-out in New Zealand.
Despite a sharp cold snap in early August, seasonal temperatures are forecast to be near average or above average for all regions of New Zealand, owing to warmer than average coastal and regional sea surface temperatures.
An unusually dry start to winter.
We’re now halfway through 2019 and NIWA climate data from the first six months tell a dramatic story of weather and climate extremes.
A weak, central Pacific El Niño continued during June as sea surface temperatures (SSTs) remained more than 0.7˚C above average (i.e. the El Niño threshold) for the fourth consecutive month.
We’re here already – the shortest day is tomorrow (Saturday) and after this, it gets progressively lighter out to the longest day of the year in December.
When fire came to Pigeon Valley, Fire and Emergency came to NIWA.
Demands for new weather and climate predictions are unprecedented as nations struggle to understand their exposure to risk from severe climatic events.

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Principal Scientist - Coastal and Estuarine Physical Processes
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Coastal and Estuarine Physical Processes Scientist
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National Projects Manager
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