Visiting local bars in Umphang is more fun when the weather is good. These temperatures and rainfall averages can help you choose the best time for bar-hopping. The hottest months are usually March and April, with an average temperature of 27°C, while the coldest months are January and December, with an average of 24°C. The rainiest months in Umphang are August, July, June and September, with each month seeing an average of 625 mm of rainfall.