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Hanoi weather in September (Ha Noi Municipality, Vietnam)

How does the September weather in Hanoi compare to other months? Here’s a detailed forecast of the month’s weather patterns.

Temperatures

Typically, September in Hanoi includes very high temperatures and heavy rainfall. Monthly maximum daytime temperatures generally peak at 33°C, but after sunset, they often decrease to around 25°C.

Precipitation

Hanoi in September falls under the rainy season with heavy rainfall, averaging around 247 mm for the month. This month experiences about 14 days of rain according to historical data.

Average sunshine

You can expect a moderate amount of sunlight, with approximately 162 hours. Even though this month is part of the wet season, you can still see the sun occasionally.

September in Hanoi can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.

Select a Month of Interest

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 Hanoi's climate page.

Hanoi, monthly averages in September

Min TemperatureMin Temperature 25°C  
Max TemperatureMax Temperature 33°C  
Chance of RainChance of Rain 46%  
PrecipitationPrecipitation 247 mm  
Rainy daysRainy days 14 days  
HumidityHumidity 87%  
SunshineSunshine 162 hours  
Percentage SunshinePercentage Sunshine  

Where to go in Vietnam in September

Find out more about the weather in Vietnam and which places have the best travel conditions in this month.

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

Select a Month of Interest

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 Hanoi's climate page.

So, what should you wear in this month?

It's going to be warm! Consider airy clothing, t-shirts, and other summer clothes. Shorts for men made of cotton or linen are good options for staying cool. However, there's a good chance of rain, so bring a raincoat just in case.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming
7/10
Cycling
7/10
Walking
7/10
Camping
7/10
Outdoor sports
7/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Hanoi.

Our site offers climate and forecast data for every country in the world. Are you going to Vietnam? On this website you can find 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.