Sanya Hainan Climate, Sanya Weather, Sanya Average Sea Water Temperature

Sanya Hainan enjoys a tropical climate with annual average temperatures ranging between 18°C (65°F) and 28°C (82°F) and annual rainfall between 1,500 mm and 2,000 mm. An average of about 12 hours per day have daylight and more than 300 days of a year on average, are sunny. The average annual temperatures of Sanya Hainan hover at a beautiful 22-28 °C Celsius.

Caddie has been living in Sanya since 1993. Based on her past experience. there are 3 seasons in Sanya: Hot & Some rains (July-September), Warm & Dry (October till March) and Hot & Humidity (April-June).


It is not too hot from July till September, the highest temperature is around 34 °C. While the temperatures in Beijing, Shanghai, Guangzhou could be over 38 °C. So basically speaking, Sanya is actually cooler than those big cities. With the help of tropical showers or typhoon, day temperature could easily drop down to 26°C-28 °C. Typhoon could be a problem, but usually won't last more than 3 days. And normally after typhoon, it becomes very hot, and the sun is sharp shining.


Warm & dry season (October till March) is the best time to visit Sanya when it is sunny, dry and warm with average temperature less than 25 d. Sometimes in December and January, temperature during the day could be less than 25 °C. For people who are used to very warm climate, it is chilly.


Hot & Humidity (April-June) could be difficult for most people as you keep sweating. But it is good time to get tanned on the beach. The sea breeze helps a lot so you won't feel that hot if you are on the beach or in a pool .


Sanya’s casual attitude makes packing a breeze. From February till November, shorts, T-shirts are usually all that is needed. For December and January especially during the evening, you need to prepare long pants and coat. Sun blocks, sandals, swimming wear sun glasses are the must for you holiday in Sanya. Umbrella is not requested as you could get from the hotels/resorts you stay.
 

Average Temperature of Sanya Hainan

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

23.4°C

74°F

23.6°C

74°F

25.5°C

78°F

27.9°C

82°F

28.7°C

84°F

28.9°C

84°F

28.9°C

84°F

28.4°C

83°F

28.0°C

82°F

27.8°C

82°F

23.9°C

75°F

23.0°C

73.5°F

 

Average Ocean/Sea Water Temperature of Sanya Hainan

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

24.1°C

75.4°F

24.4°C

75.9°F

25.7°C

78.2°F

28.3°C

82.9°F

29.9°C

85.8°F

29.9°C

85.8°F

29.3°C

84.7°F

30.1°C

86.1°F

29.2°C

84.5°F

29.0°C

84.2°F

26.2°C

79.1°F

24.60°C

76.3°F

 

Sanya Hainan Climate, Sanya Weather, Sanya Average Sea Water Temperature