Best Month To Visit Vietnam Weather 2025 Schedule. There’s no “best month” to visit vietnam, but the best times overall are march to april and september to november. Best weather times for vietnam and cambodia.

From may to november, the southern part sees short afternoon downpours, and between december and april—the most pleasant weather when you can enjoy phu quoc beaches or witness flowers blooming in the mekong delta. The temperature is pleasant and there is almost no rain.