What kind of weather occurs in spring in southern my country?

In southern my country, "returning to the south" often occurs in spring.

"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 damp and may even grow mold. "First frost" is the first frost after autumn.

"Returning to the South" is also called "Southern Wind" in some areas. It is a phenomenon of returning tide, which usually occurs in March and April every year. South China has a typical subtropical monsoon climate. The cold air is still relatively active in spring. When it meets the warm and humid air flow, the air humidity is close to saturation, and the "returning to the south" phenomenon occurs.

Prevention methods for "returning to the south":

1. Close the windows in the morning and evening. When the humid "back to the south" hits, be sure to close the windows in your home, especially the windows facing south and southeast, so as not to give the moisture that is staring at you outside the window any chance to sneak in. The most important periods for moisture-proofing are in the morning and evening every day. The air humidity during these two periods is higher than that at noon. In addition, windows can be opened for ventilation for a short time at noon.

2. Hang desiccant. Nowadays, there are many desiccants in supermarkets specially designed for moisture prevention and dehumidification. The most common types are moisture absorption boxes and dehumidification bags. Many moisture-absorbing boxes have various scents, such as lemon, lavender, sweet orange, etc., and are suitable for placement in large spaces of daily life such as living rooms, rooms, bathrooms, and kitchens. After using it for a period of time, you can take out the contents of the moisture absorption box, buy bulk desiccant and put it into the box for reuse.