Planning for the weather is a good way to make your trip to Meishan relaxing and enjoyable, especially when you're splurging. The hottest months are usually August and July, with an average temperature of 25°C, while the coldest months are January and December, with an average of 11°C. The rainiest months in Meishan are July, August, June and September, with each month seeing an average of 220 mm of rainfall.