Weather will likely play an important role when you plan your trip to Cheung Prey, and keep in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually March and April with an average temp of 85°F, while the coldest months are January and December with an average of 80°F. The rainiest months in Cheung Prey are September, October, August, and July, with each month seeing an average of 11 inches of rainfall.