What kind of weather often occurs when the frost returns to the south in South China in early spring?

In southern China, the phenomenon of "returning to the southern sky" often appears in spring.

Huinan (Huinan for short) is a unique weather in the southern coastal areas, which refers to a weather "anti-tide" phenomenon caused by the increase of temperature and humidity every spring.

South China belongs to a typical maritime subtropical monsoon climate. Therefore, from March to April in the solar calendar every year, warm and humid air from the South China Sea in China meets cold air from the north and south of China, forming a quasi-static front in Lingnan, which makes the weather in South China changeable and very humid, with light rain or fog in between, resulting in the phenomenon of returning to the south.

Some cold objects begin to condense after encountering warm and humid airflow, forming water droplets on the surface of the objects. When winter goes and spring comes, it's warm and cold at first. When people get up, they find the world outside the window is a sea of fog. This kind of weather is called "returning to the south sky" in Guangdong and Guangxi.

preventive

1. Close the window in the morning and evening: the most important time to prevent moisture is the morning and evening of every day. The air humidity in these two periods is higher than that at noon. If the doors and windows are not closed in time, water vapor will seriously penetrate into every corner of the house.

2. Instrumentation method: Air conditioners used in general households have dehumidification function. But it takes two or three hours to adjust the indoor air humidity with air conditioner, and it will make people feel very cold indoors. If you are not satisfied with the dehumidification effect of the air conditioner, you might as well go to the mall to buy a special dehumidifier, which is faster, but consumes more electricity.

3, hanging desiccant: There are many desiccants in the supermarket that are specialized in moisture absorption and dehumidification. The most common types are moisture absorption boxes and bags. Many water-absorbing boxes have various scents, such as lemon, lavender, sweet orange, etc., which can make the house full of scents and are suitable for being placed in living rooms, rooms, bathrooms, kitchens and other large spaces in daily life.