What will the weather be like in Hainan Island at the end of April? Will it rain?

Hainan Island is one of the regions with the highest rainfall in the world at the same latitude. It has sufficient sources of water vapor, a large amount of precipitation, and uneven spatial and temporal distribution.

The average annual rainfall is about 1,640 millimeters, and the annual rainfall is distributed in a ring shape, with more in the east than in the west, more in mountainous areas than in plains, and the southeastern slope has the most mountainous areas. The rainy area in the east is about 2000-2400 mm, and the annual average in Qiongzhong, the rainy center, is 2440 mm; the rainy area in the west is only about 1000 mm (922 mm in the east).

Hainan Island has distinct dry and wet seasons. The rainy season generally occurs from May to October, and the dry season is from November to April of the following year. Precipitation in the rainy season accounts for about 80% of the annual rainfall.

Most areas have more than 100 rainy days per year, with the least being 87 days in Dongfang and the most 194 days in Qiongzhong. In the rainy season, there are about 12-22 rainy days in each month, and in the dry season, there are less than 10 rainy days.

The annual average temperature in most areas of Hainan Island is between 22.50C-25.60C. The central mountainous area is slightly lower than 230C, and the southern and western parts are slightly higher than 250C. The isotherm curves southward in an arc, starting from the central area. The mountainous areas increase gradually towards the coast, the coast is higher than the inland, and the south is higher than the north. The coldest month is January, with the monthly average temperature in the central mountainous area being around 16.50C, the lowest on the island. The hottest month occurs in most areas in July, with the monthly average temperature in the west and east being 29.20C, the highest on the island.