Information about our varying climate is critical for managing resources and reducing risks.

Projections of how climate change is likely to affect New Zealand.

Find information about New Zealand's temperature record and climate change in our information and resources section.

Intensity of cyclones predicted to increase

Tropical cyclones forming in the south-west Pacific are becoming less frequent but those that do form are likely to be more severe.

Winters much shorter than they once were, says NIWA

New Zealand winters are a month shorter than they were 80 years ago, NIWA scientists say.

“This is a consequence of rising temperatures around the globe, and such trends in colder temperatures and frosts will influence the life cycle of plants and animals” - Dr Brett Mullan.