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Climate Change Vulnerability Assessment (CCVA)
ServiceTo prepare for changes in climate, our freshwater and oceans decision-makers need information on species vulnerability to climate change. -
Tuna - glass eels
Glass eels (about 5.5 to 7.0 cm) arrive in fresh water during spring, especially during September and October, although they may be present from July to December. -
National and regional climate maps
Research ProjectMaps of average annual rainfall, temperature and other climate variables have been produced for all of New Zealand, based on the period 1981–2010. -
The impact of El Niño and La Niña on New Zealand's climate
El Niño accounts for less than 25 percent of the year-to year variance in seasonal rainfall and temperature at most locations in New Zealand. -
Map E North
Education ResourceSheltered by high country to the west, the eastern zone of the North Island enjoys a dry, sunny climate. -
Tropical Cyclone Cook churning across Pacific
Media release10 April 2017NIWA meteorologist Seth Carrier outlines the likely path of Cyclone Cook, which is gaining strength in the Pacific. -
Tropical Torrent by the numbers
Media release07 April 2017The Tropical Torrent that spread over New Zealand this week, produced up to three times the normal April rainfall for some locations in three days, NIWA forecaster Ben Noll says. -
Tropical Torrent takes aim at New Zealand
Media release31 March 2017After thrashing Australia, what’s left of ex-Tropical Cyclone Debbie is forecast to slowly move across the Tasman Sea over the weekend and soak New Zealand next week.
