Planning for the weather is a good way to make your trip to Xuyen Moc relaxing and enjoyable, especially when you’re splurging. The hottest months are usually March and April with an average temp of 82°F, while the coldest months are January and February with an average of 79°F. The rainiest months in Xuyen Moc are July, September, August, and June, with each month seeing an average of 17 inches of rainfall.