Ho Chi Minh City Weather in September
September in Ho Chi Minh City brings very high temperatures, with highs of 32°C (90°F) and nights dropping to 25°C (77°F). It's the rainiest month of the year, so come prepared with waterproof gear.
Rainfall in Ho Chi Minh City in September
As part of the rainy season, Ho Chi Minh City sees around 20 days of rain in September, with an average of 321 mm (13 in). With high rainfall totals spread across the month, individual showers can be very heavy. Waterproof gear is strongly recommended.
Temperature in Ho Chi Minh City in September
In September, expect very high temperatures in Ho Chi Minh City, with highs of 32°C (90°F) and lows of 25°C (77°F) at night. If you're spending a lot of time outdoors, it helps to plan around the warmer part of the day. Nights stay warm at around 25°C (77°F), so light bedding and good ventilation are worth thinking about.
Sunshine in Ho Chi Minh City in September
The area enjoys a balanced 163 hours of sunlight, ensuring it's neither too rainy nor too sunny.
Average water temperature in September
The water reaches 29°C (84°F) this month. It's on the warm side, which suits people who prefer that, but don't expect a cooling dip if the air temperature is also high.September in Ho Chi Minh City has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Vietnam, check out our Ho Chi Minh City's climate page.
Ho Chi Minh City Temperature in September
Min Temperature
25°C (77°F)
Max Temperature
32°C (90°F)
Water Temperature
29°C (84°F)
Chance of Rain
65%
Precipitation
321 mm (13 in)
Rainy days
20 days
Humidity
85%
Sunshine
163 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Ho Chi Minh City typically stay consistent throughout September, with daily highs averaging around 32°C (90°F). Nights are warm, with lows around 25°C (77°F).
Average temperatures in September
Historical weather for Ho Chi Minh City in September
Browse day-by-day weather records for Ho Chi Minh City spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Ho Chi Minh City historical weather extremes in September
The extremes listed below come from historical weather data collected in Ho Chi Minh City from 1987 through 2025.
- The hottest September day on record in Ho Chi Minh City reached 36°C (97°F) (September 7, 2015).
- Ho Chi Minh City experienced its chilliest September day on September 29, 1999, reaching only 25°C (77°F).
- Ho Chi Minh City registered its coldest September night on September 14, 2017, with temperatures dropping to 22°C (72°F).
Best Places in Vietnam in September
Find out more about the weather in Vietnam and which places have the best travel conditions in this month. See all of Vietnam in September →
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What to Wear in Ho Chi Minh City in September
Warm temperatures in September make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! With water temperatures around 29°C (84°F), swimming conditions are excellent. Pack your swimsuit, goggles, and maybe some water shoes. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.What To Do in Ho Chi Minh City in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Vietnam, check out our Ho Chi Minh City's climate page.
Temperature Rainfall Sunshine Humidity Water Temp
See the full Ho Chi Minh City climate overview or explore weather in Vietnam.
