Planning for the weather is an important factor for making your trip to Rim Nuea a success, especially when you’re splurging. The hottest months are usually April and March with an average temp of 83°F, while the coldest months are January and December with an average of 73°F. The rainiest months in Rim Nuea are September, August, July, and October, with each month seeing an average of 8 inches of rainfall.