Weather is probably a major factor when you plan your trip to Bago, and keep in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually April and March with an average temp of 85°F, while the coldest months are January and February with an average of 78°F. The rainiest months in Bago are July, August, June, and September, with each month seeing an average of 23 inches of rainfall.