Weather is probably a major factor when you plan your trip to Muang Xai, but bear 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 temperature of 25°C, while the coldest months are January and December, with an average of 18°C. The rainiest months in Muang Xai are August, July, September and June, with each month seeing an average of 319 mm of rainfall.