How long does it usually take for Guangzhou to return to Nantian?

Personally, I think it may be about half a month, but I have been trying not to go back to Nantian for a year. The following is more reliable information found on the Internet ~

Returning to Nantian often occurs in the season of alternating February and March, and generally ends in April.

"Returning to Nantian" usually lasts for 3-5 days. Usually supplemented by cold air, it disappears immediately. If it stays warm, it will last for 3-5 days. Can grow for more than half a month.

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 "Returning to the South Sky" appeared, the air humidity was close to saturation, and the walls and even the ground would "boil water". 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.

Excerpt from-train network