Hanoi weather in December
December in Hanoi: nice, dry, with poor air quality — one of the best months to visit.
#1 of 12 months in Hanoi · #90 of 604 destinations to visit in December · comfort 84/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Hanoi climate normals — December
| Daytime high | 21°C / 69°F | 😎 nice |
|---|---|---|
| Nighttime low | 13°C / 56°F | |
| Feels like (high) | 20°C / 68°F | |
| Rainfall | 14 mm / 0.5 in | ☀️ dry |
| Rainy days | 5 days | |
| Humidity | 68% | 💧 humid |
| Dew point | 11°C / 51°F | |
| Sunshine | 5.8 h/day | |
| Daylight | 10.9 h | |
| Wind | 12 km/h / 7 mph | |
| Air quality (US AQI) | 116 | 😷 poor |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Hanoi in December — FAQ
- Is December a good time to visit Hanoi?
- December in Hanoi: nice, dry, with poor air quality — one of the best months to visit. It ranks #1 of 12 months for Hanoi on SeasonMap's comfort score (84/100).
- What is the weather like in Hanoi in December?
- In December, Hanoi averages a daily high of 20.8°C and a low of 13.3°C, with about 13.8 mm of rain over roughly 5 rainy days.
- What is the air quality in Hanoi in December?
- Hanoi has a mean US Air Quality Index of about 116 in December.