Weather will likely play an important role when you plan your trip to Kamnoet Nopphakhun, and keep in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually April and May with an average temp of 82°F, while the coldest months are January and February with an average of 79°F. The rainiest months in Kamnoet Nopphakhun are September, October, July, and May, with each month seeing an average of 10 inches of rainfall.