SeasonScore
Hanoi, Vietnam
Photo: Nam-ho Park · CC BY 2.0

Vietnam

Hanoi in December

🌤️ Cool dry season

Pleasant and mostly dry. Watch for hazy air.

🎒 Pack: N95 mask for hazy days

Best months: Nov (8.3), Feb (7.8), Mar (7.5)

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Why December scores 6.9What goes into the score

How it works
🌡️ 21° / 14°C🌧️ 20 mm💧 dew pt 13°🍃 PM2.5 73
  • Weather comfort9.8
    • ✓Comfortable temperatures (21°C highs / 14°C lows)
    • ✓Comfortable humidity (dew point 12.5°C)
    • ✓Mostly dry (~20 mm rain)
  • Air quality2.6
    • !Unhealthy (PM2.5 ~73 µg/m³) — score capped at 6.9
  • Seasonal hazards10.0
    • ·No notable seasonal hazards
  • Safety baseline7.5
    • ·Increased caution
Compare monthsPut December side by side with another month
DecNov
Score6.9 Good8.3 Very good
Season🌤️ Cool dry season🌦️ Shoulder (showers)
High / low21° / 14°27° / 20°
Rain20 mm61 mm
Humiditydew pt 13°dew pt 18°
PM2.573 µg/m³37 µg/m³

Typical-month data: NASA POWER (MERRA-2 reanalysis) 2015–2024 (modelled, not a forecast). Temperatures: Hanoi weather-station normals. Rainfall: downtown Hanoi weather-station normals (national met service).

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 HanoiEvents, sights, food & souvenirs

Check event dates locally

Vietnam's capital, with a lakeside centre, a busy Old Quarter, French colonial buildings, ancient temples and an outstanding street food culture.

Events in December

No major events on our calendar for December.

Coming up later

Tet (Lunar New Year)Date variesLunar calendar - late January to mid-February, date moves each year

Vietnam's biggest holiday, with flower markets, family visits and temple outings.

Why go: Many shops and restaurants close for several days; transport is heavily booked.

Where: Citywide

Perfume Pagoda FestivalDate variesLunar calendar - usually from the 6th day of the 1st month into spring

A major pilgrimage to a complex of cave temples reached by boat through limestone scenery.

Why go: Expect huge crowds, especially in the first weeks.

Where: Huong Pagoda, south-west of Hanoi

National DayEvery year2 September every year

Marks Vietnam's declaration of independence in 1945, with flags and official celebrations.

Why go: A public holiday; the mausoleum area may be closed to visitors.

Where: Ba Dinh Square and citywide