Atmospheric analysis

A suite of projects that ranged from whether toothpaste’s a scam to capturing air, to human superpowers made up the 206 entries at this year’s NIWA Auckland City Science & Technology Fair.

Whether you need weather or climate information six hours, days or months out, our accurate forecasts can help you with operational requirements and decision making.

As of 15 October, the New Zealand Drought Index (NZDI) map below shows that no unusually dry conditions are currently found across the country.

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.

A new study from NIWA has mapped outdoor air quality for Invercargill and Alexandra in more detail than ever before.

This is the home for NIWA's UV and ozone research, including maps and graphs showing daily predictions and measurements for UV levels across New Zealand.

Plots of today's UV index are available in graphical form for Auckland, Wellington, Christchurch, Lauder and Invercargill.

On this page, you can find information about tide forecasts, sea-level network, tidal model of New Zealand's EEZ, and red-alert days for coastal flooding.

A study looking at the impact of sleep on depression in adolescents was 18 months in the making for Ellen Thompson.

NIWA's Tide forecaster provides tidal data for any point in New Zealand.

NIWA Weather is NIWA's public facing weather forecasting website. You'll find 2-day, hour-by-hour forecasts for locations across Aotearoa New Zealand, as well as forecast videos by our in-house meteorologists, animations showing rain forecasts, tide forecasts and NIWA's daily UV index.

This calculator estimates the solar energy that can be collected by a solar capture device (solar panel) at a given address, panel direction and roof slope.