China Naming Network - Weather knowledge - High pressure and low pressure weather
High pressure and low pressure weather
Low pressure on rainy days generally means that the atmospheric pressure near the ground is low and the pressure at high altitude is relatively high, so the clouds fall and cause rainfall. The high-pressure area is sunny because the weather is sunny and the sunshine is good. The increase in temperature causes the pressure to increase. This is a cause-and-effect relationship. It is not caused by the increase in temperature.