January in New Plymouth averages a daily high of 21.9°C with nights around 13.7°C. Expect roughly 9.8 wet days totalling 72mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit New Plymouth is January–March.
Based on NEW PLYMOUTH AWS, NZ (10.2km), 1995–2024. 28 years of January data.