Weather in Hanoi in August 2025
- August is usually the wettest month of the year in Hanoi;
Average weather
Average temperature in Hanoi in August
Going from a maximum of +36°C during the day to a minimum of +25°C during the night, the temperature in August averages around +33°C.
The average maximum temperature goes up 27% by the end of the month, compared with the beginning of the month, from +32°C to +35°C.
Is Hanoi warm or cold in August?
Hanoi is typically hot in August.
Maximum temperatures go down compared to the previous month from +33°C to +32°C. The minimum temperature also goes down from +27°C to +26°C.
Make sure that you pack your summer linen and swimming costumes; it’s probably going to be hot.
Take a look at how August is compared to other months in Hanoi:
Climate in Hanoi in August
| July | August | September | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +33°C | +32°C | +32°C | ||||
| Min. temperature | ||||||
| +23°C | +23°C | +18°C | ||||
| Max. temperature | ||||||
| +39°C | +38°C | +37°C | ||||
| Rainfall | ||||||
| 251 mm | 310 mm | 229 mm | ||||
| Wind | ||||||
| 1 m/s | 1 m/s | 1 m/s | ||||
| Humidity | ||||||
| 82% | 84% | 83% | ||||
| Air pressure | ||||||
| 1001 HPa | 1002 HPa | 1007 HPa | ||||
| Sunny days | ||||||
| 1 | 1 | 2 | ||||
| Cloudy days | ||||||
| 5 | 3 | 5 | ||||
| Rainy days | ||||||
| 24 | 25 | 21 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
August often has better weather than July. It’s getting colder in August. From +33°C in the day, the average maximum temperature lowers to +32°C. Prepare for more rain. Average rainfall goes from 251 mm to 310 mm. Humidity rises from 82% to 84%. The average wind speed doesn’t change much during August, staying around 1 m/s. The amount of sunny days stay about the same, averaging 1 sunny days during the month.
September brings much the same weather, it remains ok.
Wind
The average wind speed is 1 m/s getting up to 2 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Hanoi is gradually increasing during August, going from 1 m/s to 1 m/s over the course of the month.
Rain
How was the weather last August in Hanoi?
Climate Change over Years
The climate in Hanoi in August has not changed much over the last 43 years.
The average temperature was the lowest in 2011 (+26°C) and the highest in 2019 (+29°C). The driest year was 2004 with only 1210 mm of rainfall, and the wettest year was 1981 with 2188 mm.
FAQ
Is August a good time to visit Hanoi?
Can you sunbathe in Hanoi in August?
Is Hanoi rainy in August?
Is it sunny in Hanoi in August?
Other cities in Vietnam
Monthly weather in Hanoi
Source of the data
For this page, we’ve looked at the typical weather in Hanoi, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.