Weather is probably a major factor when you plan your trip to Meishan, 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 26°C, while the coldest months are January and December, with an average of 12°C. The rainiest months in Meishan are June, May, August and March, with each month seeing an average of 237 mm of rainfall.