Where is the weather good in Sanya and Hainan?

Hainan is the place with the most tropical marine climate characteristics in China: warm and hot all year round, abundant rainfall, obvious dry and wet seasons, strong normal winds, frequent tropical storms and typhoons, and diverse climate resources. As a watershed of Hainan's climate, Niu Ling makes Haikou and Sanya have different climates and their own charms.

Keywords: Sanya, Haikou, tropical Niu Ling, Hainan

1. Climatic characteristics of Hainan

Hainan is the place with the most tropical marine climate characteristics in China: warm and hot all year round, abundant rainfall, obvious dry and wet seasons, strong normal winds, frequent tropical storms and typhoons, and diverse climate resources.

In Hainan Island, the annual total solar radiation is about11kloc-0/40 kcal/cm2, the annual sunshine hours are 1750-2650 hours, and the illumination rate is 50- 60%. By region, the sunshine hours are the most in the western coastal areas and the least in the central mountainous areas; According to the season, according to the order of summer, spring, autumn and winter, from more to less.

The annual average temperature is between 23 and 25 degrees Celsius, which is lower in the central mountainous area and higher in the southwest. There is no winter throughout the year, and it is coldest from/kloc-0 to February, with an average temperature of 1 6-24 degrees Celsius and an average extreme low temperature of more than 5 degrees Celsius. Summer is from mid-March to165438+1early October, and July to August is the month with the highest average temperature, which is 25-29 degrees Celsius. The west, south and zhongsha islands have a tropical maritime climate, with no summer and no winter, and the average annual temperature is 26.5 degrees Celsius.

There is abundant rainfall in most parts of Hainan Island, with an average annual rainfall of 1600 mm, rainy in the east and dry in the west. The rainy center is located in the eastern mountainous area of Central China, with an annual rainfall of about 2000-2400 mm, and the annual rainfall in the western rainless area is about 1000- 1200 mm, with uneven seasonal distribution. It is dry in winter and spring, and the dry season lasts for 6 to 7 months from 1 1 to April and May of the following year. There is a lot of rainfall in summer and autumn. May to 10 is the rainy season. The total rainfall in rainy season is about 1500mm, accounting for 70-90% of the annual rainfall. Rain sources include frontal rain, thermal thunderstorm and typhoon rain.

The humidity in Hainan Island is high throughout the year, and the annual average water vapor pressure is about 23 hectopascals (Qiongzhong) to 26 hectopascals (Sanya). The central and eastern coastal areas are humid areas, the southwest coastal areas are semi-dry areas, and other areas are semi-humid areas.

Hainan Island is a region with many tropical storms and typhoons. Tropical storms and typhoons affecting Hainan Island mostly occur in the western Pacific Ocean (5 ~ 20 north latitude). There are many tropical storms and typhoons, usually 8 to 9 times a year, up to ll times; The season is long, with May to ll as the tropical storm and typhoon season and August to 10 as the peak season. About 75qc landed in the coastal areas from Wenchang to Qionghai to Wanning, and there was no landing record in the western coastal areas. The wind disaster on the northeast coast is more serious. Typhoon rain plays a decisive role in the annual rainfall. Typhoon rain accounts for 0 ~ 36% of the annual rainfall in most areas of 3L Island, and 44 ~ 45% in the west and south.