Weather will likely play an important role when you plan your trip to Nai Mueang, 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 27°C, while the coldest months are January and December, with an average of 23°C. The rainiest months in Nai Mueang are July, August, June and September, with each month seeing an average of 518 mm of rainfall.