What does heavy rain mean in early autumn?

This means that the weather in early autumn will be sunny in the future.

Agricultural proverb: "A rain in early autumn brings gold everywhere". In beginning of autumn season, it includes not only beginning of autumn solar terms, but also beginning of autumn solar terms. If there is rain, it is a good sign, which indicates that Man Cang will have a bumper harvest. There is gold everywhere, which shows that the crops in Huang Cancan are heavy, which indicates a bumper harvest in autumn and a bumper harvest of grains.