Why are there water drops on the ground in wet weather?

The simplest reason why there are water drops on the wet ground is the large temperature difference between indoor and outdoor. When the humid air with higher temperature (relative humidity above 90%) meets the smooth and non-absorbent ground with lower temperature, it is easy to produce condensed water on the ground (usually when the temperature is around 2℃). This happens mostly in the rainy season, with much rain, high temperature and high humidity.

Solution: the temperature difference between indoor and outdoor is large, and the external warm and humid air flows into the room and condenses into water. In this weather, doors and windows should be closed tightly to prevent warm and humid outdoor air from entering the room. Or naturally wait until the temperature is dry and let the moisture recede, but in this way, the owners have to endure a painful and humid feeling.

Prepare for long-term dehumidification and put some hygroscopic substances indoors, such as quicklime commonly used in life. 1 kg quicklime can absorb about 0.3 kg of water in the air, which is very easy to use. Or put charcoal in corners and other places.