What is the annual precipitation in Guangzhou?

The average annual precipitation in Guangzhou is 1600- 1900mm, which is a very good climate environment compared with cities in the same latitude. It also reflects the influence of the Qinghai-Tibet Plateau on the climate in eastern China, and has the characteristics of Eurasian monsoon climate.

Guangzhou is located near the Tropic of Cancer, with low latitude, high sun, strong solar radiation and very active water vapor, which creates very favorable conditions for the formation of precipitation.

Although there is no adjacent Indian Ocean in Guangzhou in winter, the south branch trough is active, which can attract the warm and humid airflow in the Bay of Bengal. Because of this, there is not much precipitation in winter, while most cities in China are dry in winter and Guangzhou is rainy. In fact, in recent years, the winter in the north is dry and there is little snow, while many cities in the south are rainy and snowy, which are related to the activities of the south branch trough.

From March to May in spring, the cold air did not retreat, the direct point of the sun moved northward, and the Pacific subtropical high moved northward. Affected by this, the water vapor from the Pacific Ocean landed on the coast of Guangdong, and the cold and warm air currents met to form frontal rain, and sometimes there were strong convection, air friction and lightning weather. It should also be noted that the south branch trough is still active in spring, and the warm and humid airflow in the Bay of Bengal often extends to Guangzhou, which will also increase the water vapor supply and bring precipitation. This season's rainstorm is mainly caused by water vapor from two oceans, which we can call "the first flood season".