Vietnam

Vietnam Weather in September

Average temperatures, rainfall, sunshine and the best places to visit in Vietnam in September.

Planning a getaway to Vietnam this September and curious about the weather you should prepare for? Discover all the vital details you need on this page, solving your puzzle:

What to Expect in Vietnam in September

September in Vietnam generally has temperatures that range from warm to very warm, with precipitation levels ranging from high to heavy.

Temperatures

The average highest temperatures fluctuate between warm in Khu Chi Lăng at 26°C (79°F) to very warm in Noi Bai at 33°C (91°F). Nighttime temperatures generally drop to 25°C (77°F) in Noi Bai and 19°C (66°F) in Khu Chi Lăng. The temperatures cited for both day and night represent usual averages, but it's possible some days could be hotter. It's advisable to dress accordingly to handle the heat.

To learn more about the conditions in specific areas of Vietnam, check out the map below.

Precipitation

In September, precipitation varies across different areas. From high rainfall in Mui Ne with an average of 150 mm (5.9 in) to heavy rainfall in An Thoi with 422 mm (17 in). Looking at the climate data spanning the last 30 years, this month sees the heaviest rainfall of the year in Ho Chi Minh City.

Average sunshine

Sunshine is moderately available across various locations. In Ho Chi Minh City, you can expect around 163 hours of sunlight in September, which gives a pleasant combination of sun and shade. For those who want maximum sunshine, our weather planner can point you toward the sunniest places on Earth.

Explore Vietnam by month

Best Places to Visit in Vietnam in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Vietnam.

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Vietnam

What is the weather like in September for some of the most popular destinations in Vietnam?

Temperature range in Vietnam (September)

Precipitation variation in Vietnam (September)

Ho Chi Minh City

In September Ho Chi Minh City generally has very high temperatures with maximum daytime temperatures around 32°C (90°F), minimum nighttime temperatures around 25°C (77°F) and heavy monthly rainfall. So on average the conditions are poor that month.

August
September
October
Max temperature
32°C (90°F)
32°C (90°F)
32°C (90°F)
Min temperature
25°C (77°F)
25°C (77°F)
25°C (77°F)
Monthly sun hours
172 hours
163 hours
183 hours
Monthly rainfall
281 mm (11 in)
321 mm (13 in)
268 mm (11 in)
Monthly rainy days
18 days
20 days
19 days
Weather conditions

Hanoi

In September Hanoi generally has very high temperatures with maximum daytime temperatures around 33°C (91°F), minimum nighttime temperatures around 25°C (77°F) and heavy monthly rainfall. So on average the conditions are poor that month.

August
September
October
Max temperature
34°C (93°F)
33°C (91°F)
31°C (88°F)
Min temperature
26°C (79°F)
25°C (77°F)
23°C (73°F)
Monthly sun hours
173 hours
162 hours
164 hours
Monthly rainfall
338 mm (13 in)
247 mm (9.7 in)
128 mm (5 in)
Monthly rainy days
17 days
14 days
11 days
Weather conditions

Da Nang

In September Da Nang generally has very high temperatures with maximum daytime temperatures around 31°C (88°F), minimum nighttime temperatures around 26°C (79°F) and heavy monthly rainfall. So on average the conditions are poor that month.

August
September
October
Max temperature
33°C (91°F)
31°C (88°F)
29°C (84°F)
Min temperature
27°C (81°F)
26°C (79°F)
25°C (77°F)
Monthly sun hours
217 hours
174 hours
150 hours
Monthly rainfall
155 mm (6.1 in)
321 mm (13 in)
434 mm (17 in)
Monthly rainy days
22 days
18 days
14 days
Weather conditions

Hoi An

In September Hoi An generally has very high temperatures with maximum daytime temperatures around 32°C (90°F), minimum nighttime temperatures around 26°C (79°F) and heavy monthly rainfall. So on average the conditions are poor that month.

August
September
October
Max temperature
33°C (91°F)
32°C (90°F)
29°C (84°F)
Min temperature
27°C (81°F)
26°C (79°F)
25°C (77°F)
Monthly sun hours
220 hours
180 hours
150 hours
Monthly rainfall
139 mm (5.5 in)
308 mm (12 in)
434 mm (17 in)
Monthly rainy days
23 days
19 days
15 days
Weather conditions

Nha Trang

In September Nha Trang generally has very high temperatures with maximum daytime temperatures around 31°C (88°F), minimum nighttime temperatures around 26°C (79°F) and heavy monthly rainfall. So on average the conditions are poor that month.

August
September
October
Max temperature
32°C (90°F)
31°C (88°F)
30°C (86°F)
Min temperature
27°C (81°F)
26°C (79°F)
25°C (77°F)
Monthly sun hours
235 hours
203 hours
185 hours
Monthly rainfall
127 mm (5 in)
218 mm (8.6 in)
291 mm (11 in)
Monthly rainy days
21 days
20 days
18 days
Weather conditions

Is your destination not in the list? Have a look at all destinations in Vietnam.

In our records: Vietnam September extremes

Notable September records observed across cities in Vietnam in our climate database (1976 – 2026). Historic readings can vary in quality, so treat these as illustrative.

  • From our sources, the wettest September day in Vietnam brought 486 mm (19 in) in Bạch Mã on September 4, 2009.

Popular cities in September

Day & night temperatures, rainfall and average weather in Vietnam in September.

City Weather Day temp Night temp Rainfall
Ho Chi Minh City 32°C (90°F) 25°C (77°F) 321 mm (13 in)
Hanoi 33°C (91°F) 25°C (77°F) 247 mm (9.7 in)
Da Nang 31°C (88°F) 26°C (79°F) 321 mm (13 in)
Da Lat 26°C (79°F) 19°C (66°F) 297 mm (12 in)
Duong Dong 29°C (84°F) 26°C (79°F) 418 mm (16 in)
Sa Pa 28°C (82°F) 21°C (70°F) 216 mm (8.5 in)

Vietnam weather in September: frequently asked questions

What is the weather like in Vietnam in September?

Expect poor weather across Vietnam in September. The popular destination of Ho Chi Minh City averages 32°C (90°F) by day and 25°C (77°F) at night during this month.

What is the average temperature in Vietnam in September?

Ho Chi Minh City averages a daytime maximum of 32°C (90°F) in September, with overnight lows close to 25°C (77°F).

Does Vietnam get a lot of rain in September?

Yes. September brings heavy rainfall to Vietnam, with Ho Chi Minh City averaging around 321 mm (13 in). Expect frequent showers and pack accordingly.

Is September a Good Time to Visit Vietnam?

In our opinion, September may not be the ideal time to visit Vietnam due to the typically poor weather in Ho Chi Minh City.

Generally speaking, the best visiting conditions can be found in January and December offering mostly tolerable weather in Ho Chi Minh City. In contrast, February, March, April, May, June, July, August, September and October tend to have poor weather conditions.

Interested in more climate information?

We have much more information about the climate in Vietnam.

Weather and climate has detailed information for every country in the world. Are you going to Vietnam? Get detailed historical weather averages for many cities in Vietnam.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

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