On 1 July 2025, NIWA merged with GNS Science to become Earth Sciences New Zealand.

Mean Annual Temperature, 1971–2000

Rainfall and temperature patterns for New Zealand are extremely diverse, due to our geographic location and complex terrain. These two posters (sold as a set) show how the mean annual rainfall and temperature vary throughout the country. The posters are approximately 60 cm x 85 cm. NIWA Poster Nos. 4 & 5, 2004. $28 (plus $5 for overseas orders)