Sanya weather is characterized with tropical oceanic monsoon climate, with yearly average temperature stays at 25.4°C., Sanya weather is warm all year around, and no matter believe or not, 35.7°C. is the historical supreme Sanya temperature on record. The highest average Sanya temperature falls in July at 28.3°C while the lowest comes in Jan. at 20.3°C. the winter is very pleasant with no frost nor snow. Flowers are in full bloom throughout the year. Sanya thus is praised as the "Oriental Hawaii " because of the weather. The duration of sunshine is 2563 hours, with an annual rainfall of 1279mm in a year. Sanya's rainfall is lower then the other area of Hainan island, and 1/3 of the yearly rainfall comes with the typhoon, at the same time the concentrative rainfall makes Sanya weather a feature of 300 shinning days a year.
Sanya weather is famed for its clear, fresh air and abundant sunshine and is nicknamed as "Natural Oxygen Bar". According to the air quality appraising over 148 cities of 45 countries by the World Environmental Protection Organization from 1998 to 2003, Sanya ranked No.1 in China, No.2 in the world in terms of air quality. Sanya weather upreared a large original tropical rain forest, it has 63% of forest coverage with121 thousand hectares forestland and 62 thousand hectares forestation. There are 9 national, provincial and municipal level nature preserves with 13,497 hectares. According to a general survey, the average life-span of Sanya people is 73.5 years, it is a place exports air and sunshine to the whole world, the place where people live the longest in China.
The whole Hainan island weather is a little different from the tropical oceanic monsoon climate Sanya weather, the Hainan Island is characterized with the tropical monsoon climate and the tropical oceanic climate. Basic Hainan weather character: indistinct four seasons, Hainan temperature is not too high in the summer, not too cold in the winter, with yearly average temperature stays at 22.5-25.6°C., Dry and rainy seasons are indistinct, winter & spring are dry season, summer & autumn are rainy seasons with quite some of tropical storms, cyclone and typhoon.
Hainan island is locate in the south of tropic of cancer, except some of the a mountainous area has approximately 1750 hours yearly sunlight because of the cloudy weather, most of the place has a yearly sunlight hours over 2000, the west and south area sunlight even extending to 2400-2600 hours. The longest sunlight comes on July of the summer, and the shortest sunlight comes on February of winter.
Most of area on Hainan Island has yearly average temperature in between 22.5-25.6°C, it has warm weather all year around, the highest average temperature falls in July-August at 25-29℃ and the lowest average temperature falls in January-February at 16-24℃. In the middle mountainous area the temperature is a little lower than 23°C, while the south and west a little higher than 25°C. Hainan temperature isotherm arc down to the south, it increases by degrees from middle mountainous area to the seashore.
Hainan Island extreme high temperature, north area approximately 39°C, middle area approximately 37-39°C, west and southern seashore are lower than 36°C, currently, extreme temperature falls on May, June or July.
Hainan Island extreme low temperatures mainly happen on Jan. sometime on Feb. or Dec. Yearly average extreme low temperature, middle mountainous area lower than 5°C, most area are 6-8°C, south seashore area a little over 10°C.
Sanya Climat Table
Detailed information about the Sanya weather: temperatures, rainfall and the sunshine
|Day Average Sunshine
|Hanan Island inshore hydrographic environmental index
|height of ocean tide
||ocean tide range
||height of sea wave
||seawater surface temperature
||seawater surface salinity
||seawater hydrography estimate
||south China tropical oceanic character
|Hanan Island oceanic environmental index (unit: mg/L)
||chem. oxygen consuming content
key harbour water quality estimate
||most maintain national 1st class
|Hainan Island atmospheric environmental index (unit: mg/stere)
|yearly average sulfur dioxide
||yearly average nitrogen-oxide
||air quality level
||air quality estimate
||I (1st grade)