Climate characteristics of early spring in South China

"Hui Nantian" is the name for the phenomenon of weather return in Hainan, Guangxi, Guangdong and other places in South China. It usually occurs in February and March in spring, when the temperature warms up and the air humidity rises sharply.

Walls, floors, beds, etc. are all wet and may even grow mold. "First frost" is the first frost after autumn.

"Hui Nantian" means that the temperature in the southern region rises, the southerly wind gradually strengthens, the moisture increases, the weather turns to continuous rain or cloudy rainy days, and the temperature gradually rises. It usually occurs after the beginning of spring, about 3 Around the month. At this time, the temperature is high, the air humidity is high, and the weather is cloudy and rainy, but there are also bright sunny moments. It is an important period for the gradual warming of spring and the recovery of all things.

The first frost usually occurs in late autumn or early winter, and is not a spring weather phenomenon.