Weather is probably a major factor when you plan your trip to Chiềng Châu, and keep in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually June and July 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 Chiềng Châu are August, July, September, and June, with each month seeing an average of 12 inches of rainfall.