Best avoided
Vietnam in September: Weather, Crowds & What's On
What September is actually like in Vietnam — average highs and lows, how much rain to expect, public holidays that fill trains and hotels, and verified places to go.
- Average high
- 31°C
- Average low
- 24°C
- Rainfall
- 286mm
Where this month sits in the year
The 5th warmest month of Vietnam's year. The 3rd wettest month, at 15% of the year's rain.
Public holidays in September
Domestic travel peaks around these dates — book earlier and expect busier sights.
- September 2 Quốc khánh · National Day
On in September
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Climate figures are 10-year averages for Hanoi, from NASA POWER; holidays from public calendars. Updated monthly.