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Zhoushan Weather by Month
Average temperatures, rainfall and humidity for Zhoushan, China, month by month, built from OpenWeather’s historical records. Use it to see what a typical Zhoushan month looks like before you travel — then check the live Zhoushan forecast for the days ahead.
Warmest month
July
34°C average high
Coolest month
January
3°C average low
Wettest month
November
342 mm of rain
Driest month
October
61 mm of rain
Average temperature and rainfall in Zhoushan by month
Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.
| Month | Avg high | Avg low | Record low / high | Rainfall | Humidity | Wind |
|---|---|---|---|---|---|---|
| January | 11°C | 3°C | -14°C / 28°C | 77 mm | 74% | 11 km/h |
| February | 12°C | 5°C | -13°C / 29°C | 69 mm | 78% | 11 km/h |
| March | 17°C | 9°C | 0°C / 34°C | 104 mm | 76% | 11 km/h |
| April | 22°C | 13°C | 4°C / 34°C | 69 mm | 74% | 11 km/h |
| May | 26°C | 18°C | 10°C / 39°C | 104 mm | 76% | 11 km/h |
| June | 29°C | 22°C | 14°C / 39°C | 238 mm | 85% | 10 km/h |
| July | 34°C | 26°C | 18°C / 45°C | 117 mm | 80% | 12 km/h |
| August | 34°C | 26°C | 19°C / 44°C | 191 mm | 79% | 11 km/h |
| September | 29°C | 22°C | 16°C / 40°C | 167 mm | 82% | 10 km/h |
| October | 24°C | 17°C | 8°C / 36°C | 61 mm | 78% | 11 km/h |
| November | 19°C | 11°C | 0°C / 30°C | 342 mm | 76% | 10 km/h |
| December | 13°C | 5°C | -5°C / 26°C | 89 mm | 72% | 11 km/h |
Best time to visit Zhoushan
The most comfortable time to visit Zhoushan is generally April to May and October, balancing mild daytime temperatures against the driest stretch of the year. The city has strongly marked seasons and rain concentrates around November, totalling about 1,628 mm a year.
Travellers who prefer heat should aim for July, when highs average 34°C. November is the month to avoid if rain would spoil your plans — it averages 342 mm, roughly 6× the rainfall of the driest month (October).
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Zhoushan forecast for what is happening now.
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