September · Vietnam
Best time to visit Hanoi in SeptemberWeather, crowds & prices
September score
2.9/10
Ranked #9 of 12 months
- Avg temp
- 27°C
- Rainfall
- 378 mm
- Humidity
- 87%
- Sunny days
- 15
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $ · Budget Friendly ($)
September in Hanoi scores 2.9/10 for sightseeing and cultural travel - ranked #9 of 12. Expect around 27°C, 378 mm of rain, and roughly 15 sunny days this month.
Old Quarter alleys, lake walks, and street-noodle mornings peak January through March.
Frequently asked
- What is the weather like in Hanoi in September?
- In September, Hanoi averages 27°C, 378 mm of rain, and about 15 sunny days. Its climate-comfort score is 2.9/10.
- Is September a good time to visit Hanoi?
- September earns a 2.9/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Hanoi in September?
- Expect about 378 mm of rain in September. Average humidity is 87% and there are about 15 sunny days.
Curated in Hanoi
Tickets & experiences
Things to do in Hanoi
Hanoi, Vietnam. Live activities and tours from GetYourGuide, matched to this destination.

