Atmospheric analysis

Annual tide envelopes

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.

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.

Our Future Climate New Zealand is an interactive tool that explores projected temperature and rainfall maps for New Zealand and charts for a selection of locations and times forward to 2100.

A weekly update describing soil moisture patterns across the country to show where dry to extremely dry conditions are occurring or imminent.