Why is Danzhou’s climate the worst in Hainan?

The reason why Danzhou’s climate is the worst in Hainan is as follows:

Because Danzhou City is located on the southern edge of the monsoon climate of the East Asian continent and has a tropical monsoon climate. It is affected by the Wuzhi Mountains that rise in the middle of the island. It is located on the leeward side and is close to the Beibu Gulf, so it has a unique microclimate. The solar radiation energy received throughout the year is 110-130 kcal per square centimeter, and the southern mountainous area is less, about 110 kcal per square centimeter. The highest concentration is along the western coast, with about 130 kcal per square centimeter.

The amount of solar radiation is the largest in summer, accounting for 31% of the annual radiation, followed by spring, accounting for 28%, autumn accounting for 23%, and winter the least, accounting for 18%. However, even in winter, the amount of solar radiation of 20 kilocalories per square centimeter in the southern mountainous areas can still meet the needs of tropical crop growth. The annual rainfall in various places ranges from 900 to 2,200 mm, with an average annual rainfall of 1,815 mm, and more than 1,500 mm in most areas.

Danzhou Location and Territory

Danzhou City is located in the northwest of Hainan Province, on the east coast of Beibu Gulf. The geographical coordinates are 19°11′～19°52′ north latitude and 108° east longitude. Between 56′～109°46′. It borders Lingao County and Chengmai County to the east, Baisha County to the south, Qiongzhong County to the southeast, Changjiang County to the southwest, Beibu Gulf to the north and west, and faces the Guangxi Zhuang Autonomous Region and Vietnam across the sea.

The total area is 3,398 square kilometers, equivalent to 4,897,768 acres, of which 4,663,540 acres are land area, accounting for 95.22% of the total area. The water area is 234,227.8 acres, accounting for 4.78% of the total area, and the total area accounts for 9.6% of the province's area. Danzhou City is approximately bounded by 19°40′ north latitude, and the southern part belongs to the Indosinian dome structure, forming wavy low hills. It mainly exposes the granite intruded in the second period of the Mesozoic Era, the Cambrian Tuolie Group metamorphic rocks, the Cretaceous Banwan Group and A small part of the Quaternary marine strata.

Reference for the above content: Baidu Encyclopedia—Danzhou City