When did mosquitoes begin to appear in Guangdong?

Mosquitoes began to appear in Guangdong in July.

Guangdong province belongs to the East Asian monsoon region, which is characterized by subtropical climate, subtropical climate and tropical climate from north to south. It is one of the areas with the richest light, heat and water resources in China, with the same rain and heat and evergreen seasons.

From north to south, the annual average sunshine hours increased from less than 1500 hours to more than 2,300 hours, the annual total solar radiation was between 4,200 and 5,400 mj/m2, and the annual average temperature was about 19℃ ~ 24℃.

Terrain:

Most of the mountain ranges in Guangdong province are consistent with the geological structure, mostly from northeast to southwest, such as Luoping Mountain in western Guangdong, central Guangdong and eastern Guangdong and Lianhua Mountain in eastern Guangdong. Most of the mountains in northern Guangdong are arc mountains arched to the south, and there are a few northwest-southeast mountains in eastern Guangdong and western Guangdong. There are valleys and basins between the mountains.

The Pearl River Delta Plain is the largest, followed by Chaoshan Plain, and there are alluvial plains such as Gaoyao, Qingyuan, Yangcun and Huiyang. These platforms are distributed in Leizhou Peninsula-Dianbai-Yangjiang area and Haifeng-Chaoyang area.