Ha Long weather in December
December in Ha Long: nice, dry — a great time to visit.
#5 of 12 months in Ha Long · #329 of 897 destinations to visit in December · comfort 78/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Ha Long in December
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Ha Long climate normals — December
| Daytime high | 21°C / 69°F | 😎 nice |
|---|---|---|
| Nighttime low | 15°C / 60°F | |
| Rainfall | 7 mm / 0.3 in | ☀️ dry |
| Rainy days | 3 days | |
| Humidity | 68% | 💧 humid |
| Dew point | 11°C / 52°F | |
| Sunshine | 7 h/day | |
| Daylight | 10.9 h | |
| Wind | 15 km/h / 9 mph | |
| Air quality (US AQI) | 82 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Ha Long in December — FAQ
- Is December a good time to visit Ha Long?
- December in Ha Long: nice, dry — a great time to visit. It ranks #5 of 12 months for Ha Long on SeasonMap's comfort score (78/100).
- What is the weather like in Ha Long in December?
- In December, Ha Long averages a daily high of 20.8°C and a low of 15.3°C, with about 6.7 mm of rain over roughly 2.6 rainy days.
- What is the air quality in Ha Long in December?
- Ha Long has a mean US Air Quality Index of about 82 in December.