Planning for the weather is an important factor for making your trip to Viet Tri 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 Viet Tri are August, July, June and September, with each month seeing an average of 358 mm of rainfall.