The weather in Nha Trang in September is very hot. The average temperatures are between 25°C and 30°C, drinking water regularly is advisable.
You can expect rain for roughly half of the month of September in Nha Trang. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Nha Trang in September 2025.
If you’re planning to visit Nha Trang in the near future, we highly recommend that you review the 14 day weather forecast for Nha Trang before you arrive.
Temperatures
30° / 25°
Rainy Days
14
Snowy Days
0
Dry Days
16
Rainfall
238
mm
Sun Hours
11.4
Hrs
