About Wairau Valley, Auckland's Climate & Weather History

With a population of around 4,000, Wairau Valley sits in Auckland, New Zealand. The city operates in the Pacific/Chatham time zone.

In 2025, Wairau Valley recorded an average annual temperature of 61°F. The hottest temperatures reached 83°F in December; the coolest were 38°F in August. Total precipitation for the year was 61 inches, with the wettest month being July.