Weather will likely play an important role when you plan your trip to Leishan County, and keep in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually August and July with an average temp of 74°F, while the coldest months are January and December with an average of 46°F. The rainiest months in Leishan County are June, May, April, and July, with each month seeing an average of 8 inches of rainfall.