Hanoi weather in August
In August, Hanoi has an average high of 32 °C89 °F and an average low of 25 °C77 °F, with about 322 mm13 in of precipitation. It is the 3rd warmest month of the year and the wettest.
How August compares with other months
Compared with July, August is about the same temperature and wetter by 22 mm0.9 in. Compared with September, August is 1.2 °C2.1 °F warmer on average and wetter by 99 mm3.9 in. Daylight lasts about 12.8 hours around the middle of the month. Average relative humidity is 86% and the average cloud amount 83%.
Is August a good time to visit Hanoi?
August is not among the most comfortable months by our comfort score: it is hot (average high 32 °C89 °F), it is fairly wet (322 mm13 in) and it is humid (86%). The most comfortable months in Hanoi are November–March.
What to wear in August
For Hanoi in August, pack very light, breathable clothing, a sun hat and plenty of water and a good rain jacket or umbrella and quick-drying shoes.
August in nearby places
| Place | High °C°F | Low °C°F | Precip. mmin |
|---|---|---|---|
| Hanoi | 3289 | 2577 | 32213 |
| Thanh Xuân | 3289 | 2577 | 32213 |
| Gia Lâm | 3188 | 2577 | 32813 |
| Bắc Ninh | 3188 | 2578 | 32813 |
| Bắc Giang | 3289 | 2577 | 30312 |
| Hải Dương | 3188 | 2578 | 32813 |
| Phủ Lý | 3189 | 2577 | 31512 |
| Thái Nguyên | 3289 | 2577 | 30812 |
| Nam Định | 3188 | 2679 | 32413 |
Other months in Hanoi
- January21 °C69 °F / 11 °C52 °F
- February24 °C75 °F / 13 °C56 °F
- March27 °C81 °F / 17 °C62 °F
- April31 °C88 °F / 20 °C69 °F
- May32 °C90 °F / 24 °C75 °F
- June32 °C90 °F / 26 °C78 °F
- July32 °C90 °F / 26 °C78 °F
- August32 °C89 °F / 25 °C77 °F
- September31 °C87 °F / 24 °C75 °F
- October28 °C83 °F / 20 °C69 °F
- November25 °C77 °F / 16 °C61 °F
- December21 °C70 °F / 12 °C53 °F
Frequently asked questions
How warm is Hanoi in August?
In August the average high in Hanoi is 32 °C (89 °F) and the average low is 25 °C (77 °F).
Does it rain a lot in Hanoi in August?
On average about 322 mm (12.7 in) of precipitation falls in August; it ranks 1st of the 12 months.
Is August the warmest month in Hanoi?
No. The warmest month in Hanoi is June, with an average high of 32 °C (90 °F). The coldest month is January, with an average low of 11 °C (52 °F).
How long is the day in Hanoi in August?
In the middle of August the day in Hanoi lasts about 12.8 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.
How humid is Hanoi in August?
The average relative humidity in August is about 86%. Combined with warm days, it can feel muggy.
How cloudy is Hanoi in August?
On average about 83% of the sky is covered by cloud in August. This is the mean cloud amount from satellite data, not the number of sunny days.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 88 m, while Hanoi lies at about 10 m. Temperatures on this page were therefore adjusted by +0.5 °C0.9 °F using the standard lapse rate of 6.5 °C per 1,000 m.