Why does the higher the temperature, the greater the humidity?

Humidity is relative humidity. On the premise that the environmental water content remains unchanged, it is impossible that the higher the temperature, the lower the relative humidity, and the higher the temperature, the higher the relative humidity will be.

If there must be, it shows that in nature, in high temperature and rainy places, the higher the temperature, the faster the water evaporation, which leads to the increase of water content in the air, and the higher the temperature, the greater the humidity.

The ratio of absolute humidity of wet air to the maximum absolute humidity that can be achieved at the same temperature. It can also be expressed as the ratio of the partial pressure of water vapor in wet air to the saturated pressure of water at the same temperature.

Extended data:

Water vapor is the most important energy carrier in the atmosphere and the most important greenhouse gas. Therefore, its temporal and spatial distribution has a considerable impact on the weather and climate through latent heat exchange, radiation cooling and heating, cloud formation and rainfall, thus affecting the growth environment of animals and plants. Its change is the main driving force of vegetation change and has a certain impact on agricultural production.

Therefore, the research on humidity becomes more and more important. In addition, relative humidity also has a great influence on industrial processes, and it also has a systematic impact on the solar warming rate by affecting the optical characteristics of aerosols, which is meaningful for the climate effect of aerosols; Of course, relative humidity also has some influence on visibility.

Therefore, it is of great practical significance to study the changing trend of relative humidity under the background of global change for understanding the change of environment and adjusting production.

Baidu encyclopedia-relative humidity