The weather in Hoi An in September is very hot. The average temperatures are between 24°C and 30°C, drinking water regularly is advisable.
There’s going to be many days of rain during the month of September in Hoi An.
Hoi An should expect an average of 15 to 22 days of rain, so be sure to bring along a waterproof jacket to stay dry this month!
Our weather forecast can give you a great sense of what weather to expect in Hoi An in September 2025.
If you’re planning to visit Hoi An in the near future, we highly recommend that you review the 14 day weather forecast for Hoi An before you arrive.
Temperatures
30° / 24°
Rainy Days
15
Snowy Days
0
Dry Days
15
Rainfall
466
mm
Sun Hours
10.8
Hrs
