Planning for the weather is a good way to make your trip to Xinchang County relaxing and enjoyable, especially when you’re splurging. The hottest months are usually July and August with an average temp of 79°F, while the coldest months are January and December with an average of 46°F. The rainiest months in Xinchang County are June, July, August, and May, with each month seeing an average of 10 inches of rainfall.