Planning for the weather is a good way to make your trip to Pho Yen relaxing and enjoyable, especially when you're splurging. The hottest months are usually June and July, with an average temperature of 28°C, while the coldest months are January and December, with an average of 18°C. The rainiest months in Pho Yen are August, June, July and May, with each month seeing an average of 378 mm of rainfall.