Roi Et, has a tropical savanna climate. Winters (from November to March) are dry and very hot. Temperatures rise until April which is the hottest month of the year. The monsoon season runs from May to October, with heavy showers and generally brief and slightly cooler temperatures during the day, although the nights remain warm.
The best time to come to Roi Et, is from November to March. During the rest of the year, there will be ponctual heavy showers, brief in general, which will only disrupt your stay for as long as they last. August and the rainiest month.
See weather forecast in Roi Et