Weather · Hanoi, Vietnam
Hanoi Weather in September
September in Hanoi averages 31°C by day and 25°C at night, with about 316mm of rain. That makes it a reasonable time to visit.
Avg high
31°C
88°F
Avg low
25°C
77°F
Rainfall
316mm
#2 wettest of 12
What to pack
Light, breathable clothes and strong sun protection. Pack a rain jacket or travel umbrella, showers are frequent this month.
Timing a trip around the weather? A Local Friend in Hanoi builds it around the season for you.