Planning for the weather is an important factor for making your trip to Naypyidaw a success, especially when you’re splurging. The hottest months are usually April and March with an average temp of 81°F, while the coldest months are January and February with an average of 72°F. The rainiest months in Naypyidaw are July, August, June, and September, with each month seeing an average of 13 inches of rainfall.