Frequent average weather in Hanoi right-through September is 26 with a general average high of 31 and low around 25 degrees. We have put some more details below:
| Month | Degrees Celsius |
|---|---|
| Temperature | 26 |
| High Temperature | 31 |
| Low Temperature | 25 |
| Sunshine Per Day | 8 |
Useful Links: Hanoi Weather: Average Weather & Yearly Climate