Weather will likely play an important role when you plan your trip to Leshan, but bear in mind that cheaper options are usually available when the weather isn’t as good. The hottest months are usually July and August, with an average temperature of 16°C, while the coldest months are January and December, with an average of 1°C. The rainiest months in Leshan are July, August, September and June, with each month seeing an average of 326 mm of rainfall.