In Nelson, New Zealand's summer months of January and February bring mild temperatures, with average highs around 18°C, making for pleasant days. As autumn arrives in March, the temperature cools slightly, averaging 17°C, but still warm enough to enjoy outdoor activities. Winter, from June to August, is the coolest period, with temperatures often below 10°C, and occasional frosts. Spring, particularly October and November, sees a significant warming trend, with average highs rising to around 16°C, bringing new life to the region. By December, summer returns, with warm days averaging 19°C, leading into the festive season.