Planning for the weather is a good way to make your trip to Na Thon relaxing and enjoyable, especially when you’re splurging. The hottest months are usually May and June, with an average temperature of 29°C, while the coldest months are January and February, with an average of 27°C. The rainiest months in Na Thon are November, October, December and September, with each month seeing an average of 281 mm of rainfall.