If you’re hoping to get lost in the rain on your romantic getaway, take a look at these details about year-round temperatures in Wuchuan: The hottest months are usually July and August, with an average temperature of 28°C, while the coldest months are January and December, with an average of 19°C. The rainiest months in Wuchuan are August, June, July and May, with each month seeing an average of 311 mm of rainfall.