Why does it feel sultry when it rains?
In summer, because the land absorbs a lot of heat, when it rains, the soil absorbs water and then releases its own heat, so the temperature of the soil becomes lower and the released heat is dispersed into the air, and the air temperature near the ground will become higher.
2. Slow evaporation of water
There is water when it rains, so it is cooler. But after the rain, the air is humid, the water on the ground and human body evaporates slowly, and evaporation can absorb heat, so it feels sultry.
The air humidity is very high.
When it rains, the clouds are very low, so the heat and moisture in the air can't be emitted, and because of the high humidity of the air, the oxygen content in the air will be less than usual. So people will get bored.
Extended data:
Sunlight shines on rivers, lakes and seas, so that water absorbs heat and evaporates, and water vapor rises to a lower temperature, condenses into small water droplets or small ice crystals, forming clouds.
If the cloud meets cold air, the small water droplets in the cloud condense and gradually increase to form large water droplets, and the white clouds become dark clouds. When big water drops become heavier and heavier, they fall to the ground to form rain. If the small ice crystals in the cloud condense and become larger, they will melt into large water droplets during the falling process, and can also form rainfall.
Rainfall requires enough water vapor and nodules in the air, and the temperature must be low enough for water vapor to liquefy.
Baidu encyclopedia-rain