Climate and monthly weather forecast
Zhoushan, China

Climate and monthly weather forecast

The best time to visit Zhoushan

The best months for a swim in Zhoushan, China, are July through September, with a perfect temperature - varying between 25°C (77°F) and 29°C (84.2°F), and scarce rainfall.

Weather in January

In Zhoushan, China, in January, the average water temperature is 8.9°C (48°F). Note: If planning to swim in 8.9°C (48°F) under 10°C (50°F), wear a protective suit. Weather in January »

Weather in February

February is the month with the coldest seawater in Zhoushan, China, with an average sea temperature of 8.2°C (46.8°F). Note: To swim in 8.2°C (46.8°F) at less than 10°C (50°F), ensure you're well-protected. Weather in February »

Weather in March

In Zhoushan, China, the average seawater temperature in March is 9.4°C (48.9°F). Note: Swimming in 9.4°C (48.9°F) feels unbearing at 13°C (55.4°F) and can be life-risking below 10°C (50°F), causing breathing issues and cold shock, depending on a person's capacity. Weather in March »

Weather in April

In Zhoushan, China, the average seawater temperature in April is 13.8°C (56.8°F). Note: Staying in 13.8°C (56.8°F) waters for just a few moments at 13°C (55.4°F) can be harrowing, and below 10°C (50°F) poses breathing and cold shock risks, depending on individual tolerance. Weather in April »

Weather in May

In Zhoushan, China, in May, the average water temperature is 18.8°C (65.8°F). Note: For swimming, a surface water temperature of 18.8°C (65.8°F) is not enjoyable for the majority. Weather in May »

Weather in June

In Zhoushan, China, in June, the average water temperature is 23.2°C (73.8°F). Note: Every individual's cold threshold differs, but factors like today's sunshine, wind, and temperature can tip the scales for a delightful swim in 23.2°C (73.8°F) waters. Weather in June »

Weather in July

An excellent water temperature of 26.3°C (79.3°F) makes July in Zhoushan, China, a prime for swimming and other water activities. In Zhoushan, the average seawater temperature in July is 26.3°C (79.3°F). Note: Engaging in water activities, such as swimming or diving, in temperatures from 25°C (77°F) to 29°C (84.2°F) is very pleasurable for extended periods, without any discomfort. Weather in July »

Weather in August

An excellent water temperature of 27.3°C (81.1°F) makes August in Zhoushan, China, a prime for swimming and other water activities. August is the month with the warmest seawater, with an average sea temperature of 27.3°C (81.1°F). Note: Surface water temperatures ranging from 25°C (77°F) to 29°C (84.2°F) are seen as ideal and highly pleasant for extended enjoyment in all water activities. Weather in August »

Weather in September

The perfect water temperature of 25.9°C (78.6°F) makes September a great period for swimming and other water activities in Zhoushan, China. In Zhoushan, the average seawater temperature in September is 25.9°C (78.6°F). Note: Surface water temperatures ranging from 25°C (77°F) to 29°C (84.2°F) are seen as ideal and highly pleasant for extended enjoyment in all water activities. Weather in September »

Weather in October

In Zhoushan, China, in October, the average water temperature is 22.4°C (72.3°F). Note: If someone is sensitive to cold, the enjoyment of swimming in 22.4°C (72.3°F) water hinges on factors like sunshine, wind, and the current air temperature. Weather in October »

Weather in November

In November, the average sea temperature in Zhoushan, China, is 18.1°C (64.6°F). Note: Swimming in 18.1°C (64.6°F) is not an enjoyable experience for most. Weather in November »

Weather in December

In December, the average sea temperature in Zhoushan, China, is 12.7°C (54.9°F). Note: Swimming in 12.7°C (54.9°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation. Weather in December »

Frequently asked questions

What is the month with the coldest sea water?
The month with the coldest seawater is February, with an average sea temperature of 8.2°C (46.8°F).
When are the longest days in Zhoushan?
With an average of 14h and 0min of daylight, June has the longest days of the year.
What month is the sea warmest?
The month with the warmest seawater in Zhoushan is August, with an average sea temperature of 27.3°C (81.1°F).
What is the month with the shortest days?
The month with the shortest days in Zhoushan is December, with an average of 10h and 18min of daylight.
Is there Daylight Saving Time (DST)?
Zhoushan does not observe Daylight Saving Time (DST). CST timezone is used over the entire year.
Average sea temperature - Zhoushan, China
Average sea temperature
Zhoushan, China

The best month for swimming (with the highest average sea temperature) is August (27.3°C).
The coldest month (with the lowest average sea temperature) is February (8.2°C).

Average daylight - Zhoushan, China
Average daylight
Zhoushan, China

The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).

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