December weather forecast
Hanoi, Vietnam

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The beautiful Tran Quoc Pagoda in Hanoi, Vietnam
The beautiful Tran Quoc Pagoda in Hanoi, Vietnam

Weather in December

Concluding the year, December in Hanoi witnesses further plummeting of the thermometer, marking the beginning of winter. The prominent weather attribute for this month rests in its usable daylight, reducing to an annual low of just 10.9 hours. This shortest daylight interval, coupled with lower temperatures, sets up a crisp winter climate in the city. Despite these wintry conditions, Hanoi still attracts numerous visitors who come to enjoy the city's preparation for the festive new year ahead.

Temperature

With the onset of December, Hanoi experiences a modest temperature adjustment, with the average high-temperature gently receding from a warm 26.7°C (80.1°F) in November to a pleasant 22.1°C (71.8°F). Hanoi, during the nights of December, experiences an average temperature drop to a moderate 15.2°C (59.4°F).

Humidity

With an average relative humidity of 69%, December is the least humid month in Hanoi, Vietnam.

Rainfall

In Hanoi, in December, it is raining for 8.9 days, with typically 15mm (0.59") of accumulated precipitation. In Hanoi, during the entire year, the rain falls for 181.2 days and collects up to 595mm (23.43") of precipitation.

Daylight

With an average of 10h and 54min of daylight, December has the shortest days of the year in Hanoi.
On the first day of the month, sunrise is at 06:17 and sunset at 17:14. On the last day of December, in Hanoi, sunrise is at 06:33 and sunset at 17:26 +07.

Sunshine

In Hanoi, the average sunshine in December is 4.7h.

UV index

With an average maximum UV index of 4, December is the month with the lowest UV index in Hanoi. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The daily high UV index of 4 during December translates into the following recommendations:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
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Frequently asked questions

What is the average December temperature in Hanoi?

December temperatures in Hanoi, Vietnam, vary between a high-temperature of 22.1°C (71.8°F) and a low-temperature of 15.2°C (59.4°F). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in October is estimated at 35°C (95°F).

What is the least humid month in Hanoi?

December is the least humid month in Hanoi, Vietnam, with an average relative humidity of 69%.

What is the average humidity in December in Hanoi?

In Hanoi, Vietnam, the average relative humidity in December is 69%.

How many days does it rain in December in Hanoi?

In December, in Hanoi, the rain falls for 8.9 days. Throughout December, 15mm (0.59") of precipitation is accumulated.

What is the month with the shortest days in Hanoi?

December has the shortest days of the year in Hanoi, with an average of 10h and 54min of daylight.

What is the average length of the day in December in Hanoi?

The average day length in December in Hanoi is 10h and 53min.

What time are sunrise and sunset in December in Hanoi?

On the first day of December, sunrise is at 06:17 and sunset at 17:14. On the last day of the month, sunrise is at 06:33 and sunset at 17:26 +07.

How long on average sun shines in December in Hanoi?

In December, the average sunshine duration in Hanoi, Vietnam, is 4.7h.

When is the lowest UV index in Hanoi?

With an average maximum UV index of 4, December is the month with the lowest UV index in Hanoi, Vietnam.

What is the UV index intensity in December in Hanoi?

In Hanoi, the average daily maximum UV index in December is 4. A UV Index value of 3 to 5 symbolizes a moderate health threat from unsafe exposure to Sun's UV rays.

Average temperature in December
Hanoi, Vietnam

Average temperature in December - Hanoi, Vietnam
  • Average high temperature in December: 22.1°C

The warmest month (with the highest average high temperature) is June (35.4°C).
The month with the lowest average high temperature is January (20.7°C).

  • Average low temperature in December: 15.2°C

The month with the highest average low temperature is June (26.6°C).
The coldest month (with the lowest average low temperature) is January (14.4°C).

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Average pressure in December
Hanoi, Vietnam

Average pressure in December - Hanoi, Vietnam
  • Average pressure in December: 1019.1mbar

The month with the highest atmospheric pressure is January (1019.2mbar).
The month with the lowest atmospheric pressure is June (1003.1mbar).

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Average wind speed in December
Hanoi, Vietnam

Average wind speed in December - Hanoi, Vietnam
  • Average wind speed in December: 7.8km/h

The windiest month (with the highest average wind speed) is March (9.9km/h).
The calmest months (with the lowest average wind speed) are August and September (6.9km/h).

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Average humidity in December
Hanoi, Vietnam

Average humidity in December - Hanoi, Vietnam
  • Average humidity in December: 69%

The months with the highest relative humidity are August and September (80%).
The month with the lowest relative humidity is December (69%).

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Average rainfall in December
Hanoi, Vietnam

Average rainfall in December - Hanoi, Vietnam
  • Average rainfall in December: 15mm

The wettest month (with the highest rainfall) is August (135mm).
The driest month (with the least rainfall) is February (7mm).

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Average rainfall days in December
Hanoi, Vietnam

Average rainfall days in December - Hanoi, Vietnam
  • Average rainfall days in December: 8.9 days

The month with the highest number of rainy days is July (23.3 days).
The month with the least rainy days is February (7.8 days).

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Average daylight in December /
Average sunshine in December
Hanoi, Vietnam

Average daylight in December / Average sunshine in December - Hanoi, Vietnam
  • Average daylight in December: 10h and 5min

The month with the longest days is June (Average daylight: 13h and 24min).
The month with the shortest days is December (Average daylight: 10h and 54min).

  • Average sunshine in December: 4h and 4min

The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

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Average sunshine days in December
Hanoi, Vietnam

Average sunshine days in December - Hanoi, Vietnam
  • Average sunshine days in December: 19.6 days

The month with the most sunshine days is December (19.6 days).
The month with the least sunshine days is July (6.2 days).

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Average UV index in December
Hanoi, Vietnam

Average UV index in December - Hanoi, Vietnam
  • Average UV index in December: 4

The months with the highest UV index are May, June, July, August and September (UV index 7).
The month with the lowest UV index is December (UV index 4).

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Average cloud cover in December
Hanoi, Vietnam

Average cloud cover in December - Hanoi, Vietnam
  • Average cloud cover in December: 54

The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is June (Cloud cover 40).

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Average visibility in December
Hanoi, Vietnam

Average visibility in December - Hanoi, Vietnam
  • Average visibility in December: 9km

The months with the highest visibility are February, March and June (10km).
The months with the lowest visibility are January, April, May, July, August, September, October, November and December (9km).

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Hanoi, Vietnam

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