About Castlepoint, Wellington Region's Climate & Weather History

With a population of around 1,700, Castlepoint sits in Wellington Region, New Zealand. The city operates in the New Zealand time zone.

In 2025, Castlepoint recorded an average annual temperature of 56°F. The hottest temperatures reached 84°F in December; the coolest were 31°F in August. Total precipitation for the year was 37 inches, with the wettest month being May.