If you’re looking forward to lots of outings with your partner, check out these details about year-round temperatures in Wushan County: The hottest months are usually August and July with an average temp of 78°F, while the coldest months are January and December with an average of 48°F. The rainiest months in Wushan County are July, June, May, and August, with each month seeing an average of 7 inches of rainfall.