Atmospheric analysis

Explore our education and information section to find out about climate and climate change, weather, our atmosphere, estuaries and more.

Here is our complete range of products.

NIWA’s climate scientists can now confirm what you may have suspected. After carefully poring through more than a century’s worth of data, it has been officially determined that winter 2022 was Aotearoa New Zealand’s warmest and wettest on record.

To prepare for changes in climate, our freshwater and oceans decision-makers need information on species vulnerability to climate change.

NIWA provides national capabilities in Water Quality Monitoring.

Last Updated: July 2025

NIWA's goal is to provide the science to help New Zealanders transition to a sustainable future.

Find out more about our water quality tools.

Impacts of mining on water quality and mahinga kai.

Follow NIWA's scientists as they explore the natural world, make new discoveries and share how people use their science.

NIWA has working relationships with hundreds of organisations in New Zealand and overseas.

Waikato exhibits a range of climates due to the variety of landscapes in the region.