If you’re looking forward to lots of outings with your partner, take a look at these details about year-round temperatures in Langzhong: The hottest months are usually August and July, with an average temperature of 26°C, while the coldest months are January and December, with an average of 10°C. The rainiest months in Langzhong are July, September, August and June, with each month seeing an average of 214 mm of rainfall.