Weather is probably a major factor when you plan your trip to Guwutang, 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 16°C. The rainiest months in Guwutang are May, June, August and April, with each month seeing an average of 291 mm of rainfall.