Visiting local bars in Kengtung is more fun in good weather. These temperatures and rainfall averages can help you determine the best time for bar hopping. The hottest months are usually April and May with an average temp of 75°F, while the coldest months are January and December with an average of 63°F. The rainiest months in Kengtung are August, July, September, and June, with each month seeing an average of 14 inches of rainfall.