If you're hoping to get lost in the rain on your romantic getaway, check out these details about year-round temperatures in Wuchuan: The hottest months are usually July and August with an average temp of 83°F, while the coldest months are January and December with an average of 66°F. The rainiest months in Wuchuan are August, June, July, and May, with each month seeing an average of 12 inches of rainfall.