When does Guangdong return to Nantian usually appear?

Guangdong will basically return to Nantian for more than 100 days a year. As long as the weather gets warmer, water vapor will consciously invade your life.

"Returning to Nantian" is a kind of weather resurgence phenomenon, which generally appears in February and March in Guangdong in spring. Mainly because of the rapid influence of warm and humid airflow after cold air, the temperature rises rapidly and the air humidity increases. When some cold objects encounter warm and humid air, it is easy to produce water droplets, also known as "spitting wet", and dense fog is the most distinctive appearance of "returning to the south sky"

The formation principle of "returning to the south sky" is the same as that of "dew", that is, dew is bound at home, walls, floors and furniture. Obviously, there are at least two conditions for the formation of "returning to Nantian": First, there must be a long-term low temperature, and the average daily weather is below 12℃ for at least 3 days.

For example, the average daily temperature was lower than12℃ for 9 consecutive days before the "returning to the south sky" appeared in February 20 10; Secondly, there must be a sudden change in the weather, and it will suddenly become warm and humid after a long period of low temperature. When "Returning to Nantian" occurs, the humidity is sometimes as high as 100%. .