Planning for the weather is an important factor for making your trip to Mueang Kao a success, especially when you’re splurging. The hottest months are usually April and March with an average temp of 86°F, while the coldest months are December and January with an average of 78°F. The rainiest months in Mueang Kao are August, September, July, and May, with each month seeing an average of 10 inches of rainfall.