Why is it easy to rain in rainy solar terms? Is it easy to rain?

1, the rainy solar term means that it begins to rain, but the rainfall level is mainly light rain or Mao Mao rain.

2. Rainy solar terms are prone to rain because the direct point of the sun gradually approaches the equator from the southern hemisphere. At this time, the sunshine hours and intensity in the northern hemisphere are increasing, and the temperature is rising rapidly. Warm and humid air from the ocean becomes active and gradually pushes northward to meet with cold air, forming rainfall.

3, so it is easier to rain in rainy season.