Ho Chi Minh City in September: Weather & climate information
- Tropical heat and humidity continue to prevail in the city.
- Most days in September experience frequent, heavy rainfall, typical of the season.
September signals the end of the peak domestic tourist season in Vietnam. Hanoi welcomes mild autumn weather with warm sunshine and gentle breezes, while Ho Chi Minh City typically faces hot, rainy days. Travelers visiting in September can immerse themselves in the vibrant festivities of National Independence Day and the Mid-Autumn Festival, enjoying local celebrations and cultural experiences.
September Averages
In September, Ho Chi Minh City experiences warm temperatures ranging from 24.8°C to 31.3°C, high humidity at 84.6%, and frequent rain with about 16 rainy days. Expect around 10.2 hours of sunshine daily.| Min Temperature | 24.8°C | Precipitation | 213.3mm |
| Max Temperature | 31.3°C | Rainy Days | 16.0 days |
| Humidity | 84.6% | Sunshine Hours | 10.2 hours |
Historical weather
September weather averages for Ho Chi Minh City in the last 14 years ( 2010 to 2024).
- 2010
- 2011
- 2012
- 2013
- 2014
- 2015
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
| Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|---|---|---|---|---|---|
1 24.8°26.89° | 2 24.32°26.51° | 3 24.26°26.21° | ||||
4 24.67°27.65° | 5 24.87°26.36° | 6 24.42°26.07° | 7 24.1°27.88° | 8 25.02°30.16° | 9 24.34°28.8° | 10 24.57°27.62° |
11 23.86°25.35° | 12 24.75°29.98° | 13 24.72°30.18° | 14 23.39°24.8° | 15 24.3°26.46° | 16 24.52°30.97° | 17 24.56°29.97° |
18 24.53°32.11° | 19 24.55°28.5° | 20 24.97°33.42° | 21 25.15°31.63° | 22 24.9°33.22° | 23 24.62°32.69° | 24 24.67°32.06° |
25 24.62°31.98° | 26 25.1°27.54° | 27 22.64°28.65° | 28 24.54°29.73° | 29 23.33°25.19° | 30 24.09°28.89° |
Temperature Graph (°C)
The average Ho Chi Minh City temperature during September is around 27.7°C (81.86°F).
| Month | High | Low | Changes |
| August | 31.7°C (89.06°F) | 25.0°C (77.0°F) | +0.1°C (32.18°F) |
| September* | 31.3°C (88.34°F) | 24.8°C (76.64°F) | -0.2°C (31.64°F) |
| October | 31.2°C (88.16°F) | 24.3°C (75.74°F) | -0.3°C (31.46°F) |
Humidity Graph (%)
The average humidity in September in Ho Chi Minh City is 84.6%, which is 1.6% higher than August and 0.5% lower than October.
Rainfall Graph (mm)
Average rainfall in September in Ho Chi Minh City: 213.3mm
| August | September* | October |
| 200.0mm (+13.3mm) | 213.3mm | 204.9mm (+8.4mm) |
Rain Days Graph
Average rain days in September in Ho Chi Minh City: 16.0 days
Daylight Graph
Average daylight in September in Ho Chi Minh City: 12.2h
Tips for Visiting Ho Chi Minh City in September 2025
In September, Ho Chi Minh City experiences similar temperatures to those in the adjacent months, ranging from 24°C to 32°C. However, high humidity levels of around 85%, which is the peak for the year, combined with substantial rainfall—averaging about 214mm over approximately 16 rainy days—make September's weather more challenging than many other months.
The combination of moist air following rainfall and the typical tropical heat can create an oppressive atmosphere, which may be uncomfortable for tourists, especially those coming from cooler and dryer climates like Tasmania (Australia), New Zealand, or Canada.
Visiting the southern metropolis of Vietnam at the beginning of September allows tourists to engage in various cultural and artistic programs, along with spectacular firework displays held in celebration of National Independence Day on September 2nd. Additionally, the Mid-Autumn Festival, which primarily celebrates children and occurs on the full moon of the lunar month of August, often falls in September as well. Travelers to Ho Chi Minh City during this festive period will have the opportunity to partake in joyful lantern processions, enjoy exciting lion dances, savor traditional mooncakes, and immerse themselves in the local festivities.
While September may not be the ideal time for a visit to Ho Chi Minh City due to the hot and humid conditions, it is indeed a fantastic opportunity for families traveling with children to introduce them to the vibrant traditional Vietnamese Children’s Festival.
