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 ...

The Hunga-Tonga Hunga-Ha'apai (HT-HH) volcano was like a massive shotgun blast from the deep, generating the biggest atmospheric explosion recorded on Earth in more than 100 years. Funded by The ...

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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 ...

A New Zealand-led team has completed the fullest investigation to date into January’s eruption of the underwater Tongan volcano. Hunga-Tonga Hunga-Ha'apai (HT-HH) emitted the biggest atmospheric ...

Air flow patterns are expected to tend towards a west or southwesterly flow anomaly, characteristic of El Niño conditions, as the season progresses. June may behave as a transitional month, and the ...

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) ...

A new NIWA-led study has found that climate change increased the amount of total rainfall during Cyclone Gabrielle by 10%. This additional rain fell during the most intense parts of the storm, ...

Earth Sciences New Zealand meteorologists are anticipating a significant El Niño influence on weather patterns across the country from winter onwards, potentially bringing reduced rainfall for some ...

Kelp beds are at the centre of a Smart Idea study to determine a national estimate on kelp-carbon sequestration. A research project co-led by Blue Carbon Services and NIWA will aim to provide New ...

The table below shows 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 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 ...