Weather is probably a major factor when you plan your trip to Mueang Loei, 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 28°C, while the coldest months are January and December, with an average of 22°C. The rainiest months in Mueang Loei are August, September, July and May, with each month seeing an average of 270 mm of rainfall.