Weather in Hanoi in September
It's a rainy period, but great for indoor activities, museums, and lower prices.
Climate Overview
September is a wet time to visit Hanoi. Hanoi has a Warm climate with average yearly highs of 30°C, lows of 25°C, and approximately 27 rainy days per month.
30°C
25°C
27days
12.3h
Is September a good time to visit Hanoi?
It's a rainy period, but great for indoor activities, museums, and lower prices.
Daylight
5:44 AM
6:01 PM
Weather by Month
| Month | High | Low | Rainy days | Condition |
|---|---|---|---|---|
| January | 23°C | 16°C | 20 | Wet |
| February | 23°C | 16°C | 15 | Wet |
| March | 26°C | 20°C | 20 | Excellent (best) |
| April | 25°C | 19°C | 15 | Excellent (best) |
| May | 33°C | 26°C | 11 | Good |
| June | 35°C | 28°C | 14 | Wet |
| July | 34°C | 27°C | 16 | Wet |
| August | 31°C | 26°C | 26 | Wet |
| September | 30°C | 25°C | 27 | Wet |
| October | 26°C | 21°C | 18 | Excellent (best) |
| November | 26°C | 20°C | 8 | Excellent (best) |
| December | 20°C | 14°C | 5 | Good |
Weather data: Open-Meteo Archive (2020-2025) • Open-Meteo.com (CC BY 4.0) • Historical avg. 2020–2025
What to Pack for September
Lightweight clothes, sunglasses, sunscreen, and breathable fabrics.
Planning a trip to Hanoi?
Common Questions
Is September a good time to visit Hanoi? +
September is typically Wet for visiting Hanoi, with average highs of 30°C and around 27 rainy days.
What should I pack for Hanoi in September? +
With highs of 30°C and lows of 25°C in {month}, we recommend: Lightweight clothes, sunglasses, sunscreen, and breathable fabrics.
Does it rain a lot in Hanoi in September? +
Hanoi typically sees around 27 rainy days in September.
How many hours of daylight are there in Hanoi in September? +
In September, Hanoi gets approximately 12.3 hours of daylight per day.
Is September peak season in Hanoi? +
No, September is not peak season in Hanoi. Expect better value on accommodation and fewer tourists.
What is the best month to visit Hanoi? +
The best months to visit Hanoi are October, November, March, April, when the weather is optimal for sightseeing.
More Hanoi Guides
Best Time to Visit
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Things to Do
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Itineraries
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Overview
Complete travel guide for Hanoi: top things to do, itineraries, and typical costs.