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 Xingyi: The hottest months are usually July and August, with an average temperature of 22°C, while the coldest months are January and December, with an average of 10°C. The rainiest months in Xingyi are June, July, August and May, with each month seeing an average of 246 mm of rainfall.