Why do you say "Don't go out at sunrise, but go to Wan Li Road at sunset"?

"Don't go out at sunrise, go to Wan Li Road at sunset" is a folk proverb, which means that the sunrise appears, and it may rain later, and the sunset appears when the sun goes down, and the weather may be fine later. Why is this?

Haze is the result of sunlight passing through the thick atmosphere around sunrise and sunset and being scattered by a large number of air molecules. The more impurities such as dust and water vapor in the air, the more obvious the color of Xia Xia. If there are clouds, they will also be dyed in bright colors.

The color and luster of Chardonnay are related to the moisture in the atmosphere, so it is of guiding significance to the weather change. Before and after sunrise, if there is bright red light in the sky, it means that there are more water vapor and water droplets in the atmosphere, and clouds have begun to invade the area from the west, indicating that the weather will turn from sunny to rainy. The appearance of reddish and golden sunset shows that the clouds containing a lot of water vapor have moved westward and the rain has dissipated in the east. And as night falls, the atmosphere tends to be stable and the weather will clear up.