SeasonScore
Ha Long Bay, Vietnam
Photo: Francesco Paroni Sterbini · CC BY 3.0

Vietnam

Ha Long Bay in December

🌤️ Cool dry season

Pleasant and mostly dry. Watch for hazy air.

🎒 Pack: N95 mask for hazy days

Best months: Nov (9.0), Feb (8.9), Dec (8.8)

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Why December scores 8.8What goes into the score

How it works
🌡️ 21° / 13°C🌧️ 21 mm💧 dew pt 13°🍃 PM2.5 36
  • Weather comfort9.8
    • ✓Comfortable temperatures (20.9°C highs / 13.4°C lows)
    • ✓Comfortable humidity (dew point 12.6°C)
    • ✓Mostly dry (~21 mm rain)
  • Air quality5.5
    • !Elevated (PM2.5 ~36 µg/m³)
  • Seasonal hazards10.0
    • ·No notable seasonal hazards
  • Safety baseline7.5
    • ·Increased caution
Compare monthsPut December side by side with another month
DecNov
Score8.8 Excellent9.0 Excellent
Season🌤️ Cool dry season☀️ Dry season
High / low21° / 13°25° / 19°
Rain21 mm44 mm
Humiditydew pt 13°dew pt 18°
PM2.536 µg/m³18 µg/m³

Typical-month data: NASA POWER (MERRA-2 reanalysis) 2015–2024 (modelled, not a forecast).

Holidays & crowdsDecember 2026

No long holidays

No long public-holiday weekends this month. School holidays aren't counted, so check those if you want to avoid family crowds.

No national public holidays in Vietnam this month.

National holidays only; regional holidays and school breaks aren't included. Source: holidays (open-source public-holiday calendar).

Explore Ha Long BayEvents, sights, food & souvenirs

Check event dates locally

A UNESCO-listed bay in northern Vietnam with thousands of limestone islands, best explored on an overnight boat cruise.

Events in December

No major events on our calendar for December.

Coming up later

Tết (Lunar New Year)Date variesLunar calendar — late Jan to mid-Feb, date moves each year

Vietnam's biggest holiday, when families gather and streets are decorated with flowers and red banners.

Why go: Many shops and restaurants close for several days and domestic travel is very busy, so book transport early.

Where: Ha Long and across Vietnam

National DayEvery year2 September every year

A national holiday marking Vietnam's declaration of independence.

Why go: Domestic travel is busy around the long weekend.

Where: Across Vietnam

Plan this tripTickets, data and transfers for Ha Long Bay

Airport transfer Kiwitaxi

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