What to Wear in Hanoi in September
Still hot with heavy rain, easing toward end. Expect 24°–30°C with 15 rainy days on average.
☀️
High
30°C
🌙
Low
24°C
🌧️
Rain days
15
🌡️
Feel
Very Warm
Typical outfit
~27°C average
About September in Hanoi
September in Hanoi typically brings still hot with heavy rain, easing toward end. With averages of 24°–30°C, the conditions call for a beautifully warm day — dress for comfort and style with breathable summer pieces.
Bring a light layer for the evening — temperatures can drop 8–10°C after sunset.
September in other cities