Weather is probably a major factor when you plan your trip to Yichun, and keep in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually August and July with an average temp of 81°F, while the coldest months are January and December with an average of 50°F. The rainiest months in Yichun are June, May, April, and July, with each month seeing an average of 11 inches of rainfall.