Visiting local bars in Yasothon is better when you know what the weather holds. These rainfall averages and temperatures can help you decide the best time for bar hopping. The hottest months are usually April and March with an average temp of 86°F, while the coldest months are January and December with an average of 77°F. The rainiest months in Yasothon are September, July, August, and May, with each month seeing an average of 11 inches of rainfall.