Best time to swim in China Sea temperature by month
Do you want to go to the seaside in China? But when should you go to be sure to enjoy good sea water temperature and be able to swim for a long time? Now or another month during the year? On this page, find the sea temperature by month in China.
Swimming in China by month
Discover swimming conditions in detail in China by month below. Click on the links for each month to see details about the sea temperature in the cities of: Hong Kong, Shanghai, Dalian, Hainan island (Haikou) and Qingdao.
Month | Averagesea temperature | Our opinion | Details |
---|---|---|---|
January | 33°F to 74°F | pleasant swimming* | Sea temperature in China in january |
February | 31°F to 74°F | pleasant swimming* | Sea temperature in China in february |
March | 34°F to 74°F | pleasant swimming* | Sea temperature in China in march |
April | 44°F to 80°F | ideal swimming* | Sea temperature in China in april |
May | 53°F to 85°F | ideal swimming* | Sea temperature in China in may |
June | 64°F to 86°F | ideal swimming* | Sea temperature in China in june |
July | 73°F to 87°F | ideal swimming* | Sea temperature in China in july |
August | 75°F to 86°F | ideal swimming* | Sea temperature in China in august |
September | 72°F to 85°F | ideal swimming* | Sea temperature in China in september |
October | 62°F to 81°F | ideal swimming* | Sea temperature in China in october |
November | 52°F to 80°F | ideal swimming* | Sea temperature in China in november |
December | 40°F to 77°F | pleasant swimming* | Sea temperature in China in december |
* in at least part of the area.
Where and when should you swim in China?

Best time to swim in Hainan island (Haikou)
The best months for swimming in Hainan island (Haikou) are %MONTHS.
Other cities and places in China:
Water temperatures in China over the entire year
On this chart, we show you the variation of the average sea water temperature in China for the cities of: Hong Kong, Shanghai, Dalian, Hainan island (Haikou) and Qingdao.