How long will the wet and cold weather last in Haikou?

The wet and cold weather in Haikou lasts about 3 to 5 days. According to relevant information, the so-called moisture in Haikou means that when the cold air moves southwards, it will be accompanied by rainy weather, lasting for 3 to 5 days. After the cold air influence ends, the temperature will suddenly rise and return to the south. , there will be a return of moisture, which will take about 2 to 3 days.