Vietnam in December 2026: weather, where to go, Christmas and New Year

December splits Vietnam in two. The south is at its absolute best: dry, sunny and warm, with Phu Quoc's beaches in full season. The north turns cool and grey, and Hanoi faces its worst air of the year. In between, the centre slowly dries out after the autumn rains. Here's how December 2026 really plays out, where to spend Christmas and New Year, and what's different in Hanoi this year.

Is December a good time to visit Vietnam?

Yes, especially for the south. Saigon, the Mekong Delta and Phu Quoc have their best weather of the year. Hanoi is cool and festive but often grey with poor air, and the central coast only dries out in the second half of the month. Plan a trip that spends most of its nights in the south.

December at a glance, region by region

• North (Hanoi, Ha Long, Ninh Binh): dry but cool and often misty. Days around 18 to 21°C, nights 13 to 16°C.
• Mountains (Sapa, Ha Giang): cold. Nights can drop close to freezing during cold snaps, and frost sometimes coats the high peaks.
• Centre (Hue, Da Nang, Hoi An): rain is still likely in the first half of the month, easing towards the end. Around 24 to 27°C.
• South (Saigon, Mekong): hot, dry and sunny. Rain is rare.
• Islands (Phu Quoc): peak beach weather begins, with calm seas and water around 28°C.

Choosing between months? Compare with Vietnam in November 2026, or see the whole year in our month-by-month guide.

Hanoi in December 2026: what you need to know

It's cold, and locals bundle up

Hanoi's winter surprises people. Days are mild, but with the grey skies and damp air, 15°C feels colder than it sounds, and most hotels and cafes don't have heating. It's the best weather of the year for a steaming bowl of pho or a hot egg coffee, though. Bring a warm layer and a scarf.

The air is at its worst

December is Hanoi's worst month for air pollution. Cold, still air traps traffic fumes and construction dust near the ground. On 2 December 2025, the city's AQI hit 208, "very unhealthy". On 7 December it passed 230, and for a while Hanoi was the most polluted city in the world. Not every day is like that, and a windy or rainy spell clears it quickly. But plan for it:

• Check the IQAir app each morning, and move outdoor plans to cleaner days.
• Wear a KN95 or FFP2 mask outside on bad days.
• Choose a hotel with an air purifier in the room.
• Keep Hanoi to two or three nights, and spend the rest of the trip in the south.

The Old Quarter's weekend motorbike ban

Hanoi's pilot low-emission zone continues until the end of 2026. On 11 streets around Hoan Kiem Lake and the Old Quarter core, petrol motorbikes are banned from 6pm to midnight on Fridays and from 6am to midnight at weekends. Petrol GrabBikes can't use those streets at all, so be ready to walk a block for a pick-up, or use a Grab car or an electric Xanh SM. The city plans to widen the zone from 2027, so the rules may change in the new year.

Christmas in Vietnam

Christmas isn't a public holiday in Vietnam, but the cities celebrate it with real enthusiasm. It's a night out rather than a family day.

• Hanoi: the square outside St Joseph's Cathedral is packed on Christmas Eve, and Hang Ma street in the Old Quarter fills with decorations for sale. Midnight mass is standing room only, so arrive early or watch from the edge.
• Saigon: the Notre-Dame Cathedral has been under restoration for years. Much of the scaffolding came down in 2026, but the work continues, so expect the Christmas crowds outside rather than a finished building. The pink Tan Dinh Church is another favourite for Christmas photos.
• Hotels and restaurants in the big cities run Christmas dinners. Book early if you want a table on the 24th or 25th.

New Year's Eve 2026 in Vietnam

For the start of 2026, Hanoi held a countdown festival around Hoan Kiem Lake, with fireworks at five locations across the city. Saigon put on fireworks at six sites, including the Saigon River tunnel entrance and Thu Thiem's new city centre. Expect a similar show on 31 December 2026, though the exact sites are only confirmed in December.

• The crowds are huge. Streets around the lake and the river close to traffic from the evening. Watch from a hotel rooftop or a cafe balcony if you can.
• Getting home is slow. Grab prices surge and roads stay jammed until well after midnight. Stay within walking distance.
• Vietnam's big holiday is still ahead. Tet, the Lunar New Year, falls on 6 February 2027. If your trip runs into February, read our Tet 2027 guide and book transport around it now.

Sapa in December: cold and clear

Sapa is quiet and cold in December, with daytime temperatures in single figures to low teens, and colder at night. On clear days the views are sharp. During cold snaps, frost forms on the high ground around Fansipan, and people come up from the lowlands specifically to see it. Bring real winter clothes. The rice terraces are bare after the harvest, so this is a trip for mountain air and quiet, not green fields.

Central Vietnam: coming back to life

After the October and November rains, the central coast improves through December. The first half of the month can still be wet, and the 2025 floods lasted into early December in some provinces. By the second half, Hoi An and Da Nang are usually pleasant: mild, greener than usual, and quieter than in spring. The beaches start to come back towards the end of the month.

Hoi An's full moon lantern night falls on Tuesday 22 December 2026, a lovely evening to plan around. In Hue it stays damp and cool, so bring an umbrella. Our Da Nang & Hoi An trip works well from mid-December.

The south: December's star

December is when the south shines. Saigon is dry and bright, the Mekong Delta is green with the water slowly dropping, and Phu Quoc enters its best months, with calm, clear water on the west coast.

• The Techcombank Ho Chi Minh City International Marathon runs on Sunday 6 December 2026, starting at 3:30am in District 1. Roads close through the early morning.
• Prices rise at Christmas. Phu Quoc and the big beach resorts charge peak rates over Christmas and New Year. Book early.
• It's hot. 30 to 32°C every day. Do your walking early and late.

Planning the south? See things to do in Phu Quoc, our guide to the Mekong Delta from Saigon, and things to do in Ho Chi Minh City.

Playing pickleball in December

• Saigon and Phu Quoc: the best outdoor conditions of the year. Play at 6 or 7am before it gets hot. See where to play pickleball in Saigon.
• Hanoi: cold mornings and poor air on many days, so plan on indoor courts. Several hotels have indoor courts, and our list of resorts in Vietnam with pickleball courts includes them.
• Da Nang: mixed early in the month and better later. Covered courts are the safe bet.

A sensible December route

For December, weight the trip towards the south:

• Hanoi, 2 to 3 nights: short and sweet. Old Quarter, Hoan Kiem Lake and a food walk.
• Ha Long Bay, 1 night: cool, but calm and atmospheric.
• Hoi An or Da Nang, 3 nights: fly down in the second half of the month.
• Saigon and the Mekong, 3 nights.
• Phu Quoc, 3 to 4 nights: finish on the beach.

The Top to Bottom trip follows this north-to-south shape. For a slower trip, see our guide to Vietnam for seniors, and our safety guide for the busy holiday nights.

What to pack for December

• Two wardrobes: a warm jacket, scarf and closed shoes for the north, and summer clothes for the south.
• Proper winter layers if you're going to Sapa or Ha Giang.
• KN95 masks for Hanoi.
• Sun cream, a hat and swimwear for Saigon and Phu Quoc.
• Indoor court shoes for Hanoi, and your paddle.

Our full Vietnam packing list has the rest. Staying into the new year? Read Vietnam in January 2027 next.

Vietnam in December: FAQ

What is the weather like in Vietnam in December?

Hot and dry in the south, around 30 to 32°C in Saigon and Phu Quoc. Cool and often grey in Hanoi, with days of 18 to 21°C and nights of 13 to 16°C. The central coast is around 24 to 27°C, with rain easing through the month.

Where is the best place to go in Vietnam in December?

The south: Saigon, the Mekong Delta and Phu Quoc, which starts its best beach season. Hoi An and Da Nang are pleasant again by the second half of the month.

Is Hanoi too cold in December?

Not too cold, but cooler than most visitors expect, around 15 to 21°C, with damp air and few heated buildings. Bring a warm layer and a scarf. Sapa is properly cold, with frost on the high peaks during cold snaps.

What is the air quality like in Hanoi in December?

December is Hanoi's worst month for air pollution, with AQI sometimes above 200. Check the IQAir app each morning, wear a KN95 mask on bad days, choose a hotel with an air purifier, and keep Hanoi to two or three nights.

Is Christmas celebrated in Vietnam?

Yes, enthusiastically in the cities, though it isn't a public holiday. St Joseph's Cathedral in Hanoi and the churches of Saigon draw huge crowds on Christmas Eve, and hotels run Christmas dinners. Book early.

The bottom line

Vietnam in December 2026 is all about the south. Saigon, the Mekong and Phu Quoc are at their best, and the central coast recovers as the month goes on. Hanoi is atmospheric and festive, especially at Christmas and New Year, but it's cold and the air is often poor, so keep your visit short and flexible. Book early for the holiday weeks, bring two wardrobes, and plan your games around the sun: outdoors in the south, indoors in the north.