Planning for the weather is an important factor for making your trip to Khuan Khanun a success, especially when you're splurging. The hottest months are usually March and April with an average temp of 81°F, while the coldest months are January and February with an average of 79°F. The rainiest months in Khuan Khanun are September, October, November, and May, with each month seeing an average of 12 inches of rainfall.