Atmospheric analysis

An interactive webtool to support barrier prioritisation and fish passage environmental reporting. 

A manual detailing evidence-based methods suitable for evaluating the effectiveness of fish passage solutions.

An unusual disturbance high above Antarctica is causing polar air to encroach on different parts of the Southern Hemisphere, including New Zealand.

Investigating the effectiveness of an acoustic bubble-screen in minimising the movement of pest fish

NIWA scientists have seen substantial changes in the ocean to the east of New Zealand

July 2024 marks a special anniversary for NIWA - 25 years of issuing our Seasonal Climate Outlook.

Developing the monitoring and evaluation approaches that respond to the hauanga kai aspirations of Ngaati Mahuta

Free sources of weather and climate information and data from NIWA.

NIWA has completed a major project to analyse how New Zealand’s “climate normals” are shifting.

NIWA meteorologists say people living in the upper North Island are likely to get the best views of the Matariki star cluster this week.

NIWA generates ‘Statistics’ from Climate Station Observations collected as part of our Climate Station Network.

NIWA generates ‘Normals’ from Climate Station Observations collected as part of our Climate Station Network.