Due to its position in the 'Roaring Forties', a belt of strong winds in the Southern Hemisphere which generally occur between the latitudes of 40 and 49 degrees, as well as its small size, New Zealand ...

Site-specific weather forecasts for many locations around New Zealand, including a hosted forecast video Monday-Friday. Site-specific weather forecasts for New Zealand’s national parks, including many ...

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 ...

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, ...

NIWA and The Nippon Foundation are undertaking a mission to discover the undersea impacts of the recent Tongan volcanic eruption. In a rare opportunity to improve understanding of the nature and ...

New research led by Earth Sciences New Zealand reveals that more than 750,000 New Zealanders live in locations exposed to flooding from one-in-100-year rainfall flooding events. And this number could ...

NIWA is pleased with the announcement today by the Science, Innovation and Technology Minister of the Government’s response to a recent review of New Zealand’s weather forecasting system. The ...

A NIWA-led study has found New Zealand’s native forests are absorbing more carbon dioxide (CO 2) than previously thought. Study leader, NIWA atmospheric scientist Dr Beata Bukosa, says the findings ...

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 ...

Annual temperatures were above average (+0.51°C to +1.20°C above the annual average) for much Aotearoa New Zealand. Well above average temperatures (>1.20˘C above the annual average) occurred in parts ...

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 ...

Temperature 2025 was New Zealand’s 4th-warmest year on record, based on Earth Sciences New Zealand’s seven station series which begins in 1909. Annual temperatures were above average (0.51-1.20°C ...