Coastal risk exposure for New Zealand, adaptation guidance for local government and relevant summaries of previous court cases and Building Act 2004 determinations.

Read about how NIWA can map any aspect of climate to help guide your organisation's response to a changing and variable climate.

View annual, seasonal and monthly summaries of temperature, rainfall and sunshine data from across New Zealand.

Some simple steps to minimise the effects of mining activities on water quality and mahinga kai.

AQUA and TERRA are polar orbiting satellites that both pass over New Zealand twice per day.

NIWA is a major sponsor of the Auckland, Manukau City, North Harbour, Waikato, Wellington, Canterbury and Bay of Plenty – Science & Technology Fairs.

Objective: to observe the relationship between temperature and relative humidity.

Measurements of snowfall at low elevations around New Zealand are few and far between, and yet the data would be really helpful in understanding how snowfall occurs and quantifying snow-related risks.

All aspects of the climate of Canterbury are dominated by the influence of the Southern Alps on the prevailing westerly airflows.

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All transmissions from GMS-5 are no longer received at NIWA’s satellite reception station in Wellington. We are working on an alternative data feed and will be able to bring back these images later this year. Once we start receiving data again, it will then be calibrated, re-mapped onto standard map projections, and archived.

Smelt have a distinctly forked tail and a strong cucumber smell.

NIWA expends considerable effort on determining the age of commercial fish species. But why age a fish? And how do we do it?