Weather is probably a major factor when you plan your trip to Na Muang, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually April and May, with an average temperature of 30°C, while the coldest months are December and January, with an average of 27°C. The rainiest months in Na Muang are September, October, May and August, with each month seeing an average of 185 mm of rainfall.