Will Beihai return to Nantian on March 25th?

Yes, returning to Nantian is from March to April every year.

Huinan (Huinan for short) is a weather phenomenon in southern China, which usually refers to the phenomenon that the temperature begins to get warmer and the humidity rises sharply every spring.

South China belongs to a typical subtropical monsoon climate. Therefore, from March to April every year, warm and humid air from the South China Sea meets cold air from Siberia, forming a quasi-static front in the south, which makes the weather in the south changeable and very humid, with light rain or fog during the period, 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.