Planning for the weather is a good way to make your trip to Khanom relaxing and enjoyable, especially when you’re splurging. The hottest months are usually May and June with an average temp of 84°F, while the coldest months are January and February with an average of 81°F. The rainiest months in Khanom are November, October, December, and September, with each month seeing an average of 11 inches of rainfall.