Weather is probably a major factor when you plan your trip to Xiahe, 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 11°C, while the coldest months are January and December, with an average of -6°C. The snowiest months in Xiahe are March, April, February and May, with each month seeing an average of 16 cm of snowfall.