Planning for the weather is a good way to make your trip to Gelephu relaxing and enjoyable, especially when you're splurging. The hottest months are usually August and April with an average temp of 80°F, while the coldest months are January and December with an average of 68°F. The rainiest months in Gelephu are June, July, August, and May, with each month seeing an average of 30 inches of rainfall.