Category: Climate

View maps and graphs showing daily predictions and measurements for UV levels across New Zealand.

Thinking about solar power? Plug in the numbers with this online calculator to estimate how much energy your solar panel will capture.

Curious about what climate change will mean for New Zealand? Explore temperature and rainfall projections for a range of locations all the way out to the year 2100.

Get estimates of the magnitude and frequency of high intensity rainfall for a range of return periods and event durations at any point in New Zealand.

Browse a catalogue of major weather events in New Zealand over the last 200 years from the 1800s to the present, when significant damage or casualties occurred.

Find out how the concentration of atmospheric greenhouse gases, including C02 and methane, has changed at Baring Head since 1974.

View the long-running 'seven-station' series, which shows how New Zealand's average annual temperature has changed over the past 100 years.

See the weather and climate for locations across New Zealand – for the next 24 hours and beyond forecasted by NIWA's High Performance Computers and moderate by NIWA's team of weather experts.

The New Zealand Drought Monitor is a system for keeping track of drought conditions across New Zealand based on a standardised climate index.

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

Air temperature, rainfall, soil moisture and river flow predictions for the coming season.

Summaries of the typical weather and climate of a region, based on historical data observations made at climate stations located within the region.

Monthly summaries of the climate in the tropical South Pacific islands, with an outlook for the coming months.

Summaries of up-coming tropical cyclone seasons, issued 6-monthly.

National daily river flow forecasts for 24-hour periods across New Zealand.

Citizen science database for information on fish passage assessment, catch & release, NZ flood pics and snow depth.

GIS image service of satellite water quality products. New Zealand wide maps from July 2002 including timeseries, climatologies and anomalies.

Virtual climate station estimates are produced every day, based on the spatial interpolation of actual data observations made at climate stations located around the country.

Since 1978 an aerial photographic survey of the glaciers of New Zealand has been carried out. The primary purpose of the survey is to record how much snow covers the glaciers at the end of summer.