Planning for the weather is an important factor for making your trip to Phu Phiang a success, especially when you’re splurging. The hottest months are usually April and March, with an average temperature of 28°C, while the coldest months are January and December, with an average of 23°C. The rainiest months in Phu Phiang are August, July, September and June, with each month seeing an average of 300 mm of rainfall.