Weather will likely play an important role when you plan your trip to Xishuangbanna Dai, 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 25°C, while the coldest months are January and December, with an average of 17°C. The rainiest months in Xishuangbanna Dai are August, July, September and June, with each month seeing an average of 261 mm of rainfall.