Hanoi weather in December
In December, Hanoi has an average high of 21 °C70 °F and an average low of 12 °C53 °F, with about 25 mm1.0 in of precipitation. It is the 11th warmest month of the year and ranks 11th for precipitation.
How December compares with other months
Compared with November, December is 4.3 °C7.7 °F cooler on average and drier by 27 mm1.1 in. Compared with January, December is 0.6 °C1 °F warmer on average and drier by 7 mm0.3 in. Daylight lasts about 10.9 hours around the middle of the month. Average relative humidity is 80% and the average cloud amount 66%.
Is December a good time to visit Hanoi?
Yes — December is one of the most comfortable months to visit Hanoi by our comfort score, which favours average highs of 21–28 °C, lows above 5 °C, little rain and moderate humidity.
What to wear in December
For Hanoi in December, pack light layers — T-shirts plus a light sweater or jacket.
December in nearby places
| Place | High °C°F | Low °C°F | Precip. mmin |
|---|---|---|---|
| Hanoi | 2170 | 1253 | 251.0 |
| Thanh Xuân | 2170 | 1253 | 251.0 |
| Gia Lâm | 2171 | 1253 | 261.0 |
| Bắc Ninh | 2271 | 1253 | 261.0 |
| Bắc Giang | 2170 | 1152 | 261.0 |
| Hải Dương | 2271 | 1253 | 261.0 |
| Phủ Lý | 2170 | 1254 | 261.0 |
| Thái Nguyên | 2170 | 1152 | 261.0 |
| Nam Định | 2171 | 1457 | 271.1 |
Nearby places that are more than 1 °C1.8 °F warmer in December: Nam Định.
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 December?
In December the average high in Hanoi is 21 °C (70 °F) and the average low is 12 °C (53 °F).
Does it rain a lot in Hanoi in December?
On average about 25 mm (1.0 in) of precipitation falls in December; it ranks 11th of the 12 months.
Is December 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 December?
In the middle of December the day in Hanoi lasts about 10.9 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.
How humid is Hanoi in December?
The average relative humidity in December is about 80%. This is a long-term average for the whole day.
How cloudy is Hanoi in December?
On average about 66% of the sky is covered by cloud in December. 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.