Weather is probably a major factor when you plan your trip to Amden, and keep 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 temp of 60°F, while the coldest months are February and January with an average of 32°F. The rainiest months in Amden are August, June, July, and May, with each month seeing an average of 7 inches of rainfall.