Weather will likely play an important role when you plan your trip to Jinggangshan, 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 27°C, while the coldest months are January and December, with an average of 10°C. The rainiest months in Jinggangshan are June, May, April and July, with each month seeing an average of 221 mm of rainfall.