What does Hainan mean by returning to Nantian?

Hainan's return to the south is usually in March-April, lasting about 3-5 days. Generally, it is in the east and southeast of Hainan, and it is more serious to return to Nantian.

Returning to Nantian in 2022 usually occurs in February-March, and it will be completely over in April, which is related to the local temperature. If the air humidity is low, it will disappear. When the humidity is high, when you return to the south, the ground is wet, the floor is full of water, and clothes will not dry. Back in the south, it is usually when the temperature starts to rise and the humidity rises sharply. If the temperature is high, it usually rises to 25-30 degrees first, and then cold air appears, so the time to return to Nantian varies from place to place.

Back to Nantian:

Returning to Nantian is a phenomenon of warmer weather, which generally appears in February and March in spring. The main reason is that after the cold air leaves, the warm and humid airflow quickly counterattacks, resulting in an increase in temperature and air humidity. Some cold objects are easy to produce water droplets when they encounter warm and humid airflow. The tropic of cancer in the south is more serious, which is related to the sea and humid air in the south.

When Return to the South Sky appeared, the air humidity was close to saturation, and the walls and even the ground would "bubble". Everywhere is wet, and the air seems to be able to wring water out. Dense fog is the most distinctive appearance of "returning to the south sky"

According to statistics, when the phenomenon of returning to the south is serious, the visibility can be reduced to 50 meters. In the return weather in the south, some items or food are easy to get wet, and then moldy and rotten. Therefore, appropriate moisture-proof measures should be taken.