Zhoushan Weather & Climate: Best Time to Visit

Depending on the time of the year, temperatures range from very warm to chilly in Zhoushan. Typically, average maximum daytime temperatures range from a very warm 30°C (86°F) in August to a chilly 10°C (50°F) in the coolest month, January.

Nights vary from 27°C (81°F) in August to around 6°C (43°F) during the colder months.

Check out our detailed temperature page for more information.

Temperature ranges by month

Zhoushan has a relatively rainy climate with high precipitation levels, averaging 1464 mm (58 in) of rainfall annually. The climate in Zhoushan shows significant variation throughout the year. Expect heavy rainfall in June, the wettest month, with an average of 273 mm (11 in) of precipitation over 16 rainy days.

In contrast, the driest month December offers drier and sunnier days, with around 75 mm (3 in) of rainfall over 11 rainy days. For more details, please visit our Zhoushan Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

For those who appreciate different seasons, Zhoushan serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 8.0 hours of sunshine daily, and embrace the darker days in February, offering only 3.9 hours of daily sunlight.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

Daily percentage of sunshine

The relative humidity is high throughout the year in Zhoushan.

The city experiences its highest humidity in June, reaching 85%. In December, the humidity drops to its lowest level at 72%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year