When you’re dreaming of a getaway to Chợ Rã, year-round temperatures and rainfall may be important factors to consider. The hottest months are usually June and July with an average temp of 79°F, while the coldest months are January and December with an average of 61°F. The rainiest months in Chợ Rã are June, August, July, and May, with each month seeing an average of 16 inches of rainfall.