Hanoi Weather in December

In December, Hanoi officially enters its winter, with overall weather turning cool and crisp. The month sees almost no influential rainfall. Although sunny days prevail, sunlight is exceptionally gentle due to the lower solar altitude. Thanks to these pleasant climate conditions, December ranks as one of the best months to visit Hanoi.

Temperature

In December, Hanoi’s temperatures fall into the lowest range of the year, with a significant day-night temperature difference that can reach a maximum of 12 degrees Celsius (54 degrees Fahrenheit). Even so, compared with harsh winter in other northern places like New York and London, the climate here remains as comfortable as spring.

Daytime temperatures generally stay steady at 21 - 26℃ (70 - 79℉), offering comfortable feelings like being in a natural air-conditioned room. You won’t feel cold in short sleeves, nor will you get overheated in long sleeves, and you’ll barely sweat even when walking in the sun. The low temperature range is 14 - 20℃ (57 - 68℉), bringing a slight chill in the early morning and late evening. A light jacket is recommended if you plan to stay outdoors for an extended period, and an extra cotton jacket can be added if a cold snap hits.

It is particularly important to note that cold winds sweep through lakesides and open blocks, making the apparent temperature lower. It is advisable to bring a hat and a scarf.

Precipitation

December falls within the driest period throughout the year in Hanoi, with an average monthly precipitation of 23 mm and merely 6 rainy days for the whole month. Precipitation during this period is dominated by misty rain and drizzle, and each usually lasts for a short time. Even if you do not carry an umbrella or a raincoat, you will seldom get soaked. Meanwhile, rain water hardly accumulates on the ground, and slightly wet road surfaces dry up rapidly, causing almost no disruption to your travel itinerary.

Daytime and Sunshine Duration

In December, the sunrise in Hanoi occurs at 6:15 - 6:32, and the sunset at 17:15 - 17:26, with a daytime duration of approximately 11 hours, providing ample time for sightseeing and allowing for a leisurely daily itinerary. The average daily sunshine duration for the month is around 4 hours, and the ultraviolet index drops to level 7. The light is soft, so even at midday, there is no need to deliberately avoid the sun. After applying an appropriate amount of sunscreen, you can comfortably enjoy the sunlight outdoors.

However, there is a special climatic phenomenon worth noting: in December, Hanoi frequently experiences dense fog in the early mornings and at night, especially in areas with abundant water vapor such as Hoan Kiem Lake. The fog usually doesn’t disperse until after 10:30 a.m. Therefore, if you plan to fully appreciate the poetic and hazy beauty of the lake shrouded in mist, it is recommended to arrive at Hoan Kiem Lake before then.

Is December a Good Time to Visit Hanoi?

In terms of weather conditions, this is undoubtedly the prime time to visit Hanoi. The temperature is comfortable and pleasant, precipitation is extremely scarce, and the UV intensity is mild rather than scorching. Even when shrouded in mist, the city presents a unique scenery that hardly leaves any regrets for your trip.

When it comes to the drawbacks, December falls right at the peak of Hanoi’s tourist high season. Coupled with the Christmas and New Year holidays, visitor numbers in scenic spots and urban areas remain consistently high. For travelers who prefer a quiet sightseeing atmosphere, the travel experience this month may not be particularly pleasant.

Packing List for Visiting Hanoi in December

Clothes: In Hanoi in December, the temperature difference between day and night is relatively large. Therefore, it is recommended to dress in layers for easy adjustment according to the temperature change. For the upper body, you can choose short-sleeved tops, shirts or long-sleeved T-shirts as the inner layer, and pair them with a light jacket, a knitted cardigan or a windbreaker. If you are sensitive to the cold, you can pack a cotton jacket. For the lower body, prepare jeans or cargo pants to meet the needs of daily outings.

Shoes: As a lot of walking is required in Hanoi, it is recommended to bring sports shoes with arch support, hiking shoes, casual shoes, etc.

What’s Special in Hanoi in December?

1. Christmas atmosphere

Hanoi boasts an exceptionally strong Christmas atmosphere: exquisitely decorated Christmas trees stand on streets and alleys, in shopping malls, hotels, cafes, and outside street-side shops, adorned with colorful lights, baubles and bells. Santa Claus decorations and Christmas wreaths are everywhere to be seen, while shop windows and public squares feature Christmas-themed displays. All these blend Western festive vibes with Hanoi’s urban charm, creating warm jubilant scenery.

2. New Year’s Eve Activities

Hanoi is bustling and vibrant on New Year’s Eve. Major popular attractions and core business districts present song and dance performances, creating a lively on-site atmosphere. The most anticipated highlight is undoubtedly the New Year’s Eve fireworks show at Hoan Kiem Lake. The spectacular fireworks burst into the sky promptly at midnight, lasting approximately 15 minutes, and stand as the most ceremonious event of Hanoi’s New Year’s Eve celebrations.

Tips

1. During the festival, there will be a large number of people, and some sections of the road may be subject to temporary traffic control. Don’t worry. Just follow the instructions of the on-site staff. In addition, if you want to get the best position to watch the fireworks, it is recommended that you arrive at the scene one hour in advance.

2. It’s cooler in the early morning and late evening when you go out, and there might be a slight breeze. Therefore, it’s recommended to bring a scarf and a hat to prevent catching a cold or getting a headache. You can also carry some common medicines with you in case of emergency.

3. Visibility is low on foggy days. Please pay attention to the road conditions and be cautious when crossing the road. If you plan any outdoor activities, it is recommended to allow more time for your trip. The speed of walking, taking a taxi or riding a motorcycle will be slightly slower than usual.