Atmospheric analysis

These datasets are available in a range of formats.

Check out UV index forecasts for locations in New Zealand (including ski fields), Australia, the Pacific and Antarctica.

The Intergovernmental Panel on Climate Change (IPCC) is charged with assessing the most up to date scientific, technical and socio-economic research on climate change.

Hydrocarbons, although requiring increasingly responsible use, are still an essential part of our modern economy. NIWA has provided survey and consultancy services related to the exploration of offshore mineral resources for thirty years.

Inland South Island
Lake Tekapo, Queenstown, Alexandra, Manapouri
The climate of this zone is largely dependent on the lie of the Southern Alps to the west, but many areas are also sheltered by high country to the south and east. Mean rainfall is low, and long dry spells can occur, especially in summer. Summer afternoons are very warm, with high temperatures occurring when hot dry foehn northwesterlies blow over the Alps. Typical summer daytime maximum air temperatures range from 20°C to 26°C, occasionally rising above 30°C.

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 is a windy country.

Rural, urban, and suburban wastewater treatment methods.

How do agricultural activities potentially influence water flows?

This identification guide covers the common crustose coralline algae found in central New Zealand.

NIWA discusses, in depth, this year's most asked question—what is happening to our fresh waterways?