Weather is only one factor, but it can really affect your travel plans, especially when you're planning an extended stay in Banteay Ampil. The hottest months are usually April and March with an average temp of 85°F, while the coldest months are January and December with an average of 78°F. The rainiest months in Banteay Ampil are September, July, August, and October, with each month seeing an average of 10 inches of rainfall.