Planning for the weather is an important factor for making your trip to Prey Nob a success, especially when you’re splurging. The hottest months are usually May and April with an average temp of 83°F, while the coldest months are January and December with an average of 81°F. The rainiest months in Prey Nob are September, July, August, and June, with each month seeing an average of 25 inches of rainfall.