Hanoi Weather in September
In September, Hanoi averages a high of 32°C (89°F) and a low of 24°C (76°F), based on 48 years of historical weather data from HA DONG.
32°C
Average high
89°F
24°C
Average low
76°F
40°C
Record high
104°F · 1990
14°C
Record low
57°F · 1988
What to Expect in Hanoi in September
Typical September days in Hanoi reach 32°C (89°F) during the afternoon and cool to around 24°C (76°F) overnight. On average, measurable rain falls on about 33% of days this month. Over the past 48 years, September temperatures in Hanoi have ranged from a record high of 40°C (1990) down to a record low of 14°C (1988).
For a day-by-day look or other months, see the full Hanoi weather history.