When will Xiamen's return to Nantian end?

Xiamen's return to Nantian ended in April. Returning to Nantian will appear in the season of alternating February and March and end at the end of April. Due to the obvious degree in the air in Nantian, it is very easy to cause bacteria to breed, so don't open the window when returning to Nantian, and you can open more windows for ventilation after returning to Nantian. At the same time, it is necessary to remind family members to wash their hands and drink plenty of water to replenish water. Returning to the south sky, also known as southerly sky, refers to the phenomenon that the temperature begins to rise and the humidity rises sharply every spring. It is a kind of weather resurgence phenomenon, and it is a common special weather in winter and spring in South China. It is characterized by very humid air and water droplets on walls and floors. Returning to Nantian is mainly due to the rapid counterattack of warm and humid airflow after the cold air leaves, which leads to rising temperature and increasing air humidity. Some cold objects are easy to produce water droplets when they encounter warm and humid airflow, so people call this weather "returning to the south sky"