Hainan Island is a southeast monsoon, and the wind direction in Hainan is mainly southeast wind and east wind.
There is also a lot of precipitation in the eastern part of Hainan. Of course, there are typhoons and rainstorms here, not all summer monsoon. The average annual rainfall is about 1640 mm, and the annual rainfall distribution is annular, with the eastern part more than the western part, the mountainous area more than the plain, and the southeastern slope of the mountainous area the most. The rainy area in the east is about 2000-2400 mm.