Measured in Auckland (Leigh Marine Observatory), Paraparaumu, Christchurch, Lauder, Invercargill. Click on the thumbnail to see a larger version of each of these graphs. Time series of these UV data ...

The graph shows carbon dioxide (CO 2) levels measured at Baring Head, NIWA’s clean air station, near Wellington. This station has been running since 1972 and is home to the longest running continuous ...

Data stored in each record include the location of the sample site, sampling method and the fish species present, with many records also containing information on fish abundance and size, and a ...

Please choose in which format you would like to download the dataset, below. Mean monthly sunshine (hours) 1981-2010 (CSV 3 KB) Mean monthly sunshine (hours) 1981 ...

Our vessels are world-class environmental monitoring and research platforms with the most stringent health and safety standards. We have more than 40 years of experience working in New Zealand’s ...

Antarctica is the coldest place on earth. It is also the windiest, driest, and highest continent. The South Pole is not the coldest place in Antarctica. The coldest temperature recorded in Antarctica ...

We know that our people are everything, and to produce top-quality science we need to attract, develop and retain the very best people. The National Institute of Water and Atmospheric Research Ltd ...

Township Flood Challenge is an online climate change and extreme weather adaptation resource for teachers. The lesson packages were co-developed between NIWA, Future Curious and the Aotearoa Social ...

We are constantly bombarded with information, stories and images of our changing global climate – and of the more extreme changes we can expect in the future. The problem can feel immense – but it ...

View annual, seasonal and monthly summaries of temperature, rainfall and sunshine data from across New Zealand. You might also be interested in our 'Seven-station' series temperature data. This ...

Coastal flooding is a global hazard that also impacts Aotearoa New Zealand. Rising sea level is already causing more frequent flooding along many coasts and will greatly increase the frequency and ...

NIWA's High Intensity Rainfall Design System (HIRDS) offers planners and engineers more certainty about the frequency of high-intensity rainfall events, enabling them to better design stormwater ...