Planning for the weather is an important factor for making your trip to Moc Chau a success, 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 19°C. The rainiest months in Moc Chau are August, July, September and June, with each month seeing an average of 317 mm of rainfall.