What do you mean by rain and snow resurgence 120 days?

The resurgence day refers to returning to the south sky, that is, when the north wind blows, the weather is cold, and suddenly it turns warm and the south wind blows.

The south wind in Guangdong comes from the ocean, but the humidity is not high. However, when entering the house, due to the low temperature of internal objects such as walls and floors, water vapor will condense into water droplets, which looks very humid. Zhanjiang usually doesn't have this phenomenon until the south wind returns after the Spring Festival. It is good to raise the indoor temperature, and it is good to have heating and air conditioning.