Weather can make or break a road trip, so we've gathered some data about year-round temperatures in Zhemgang to help you plan yours. The hottest months are usually August and April, with an average temperature of 27°C, while the coldest months are January and December, with an average of 20°C. The rainiest months in Zhemgang are June, July, August and May, with each month seeing an average of 771 mm of rainfall.