What is sun rain?

Solar rain refers to rain that occurs on a sunny day or when the sun shines. The reason may be that the dark clouds in the distance produced rainfall and were blown to another place by strong winds, or that two clouds with different charges collided with each other at high altitude under the action of the solar wind, resulting in excessive water vapor content in the air in some areas. A rainbow will form in a short time, and the sun will appear in summer in the south, which may lead to a sudden rainstorm.