Vientiane weather in December
December in Vientiane: hot, dry — one of the best months to visit.
#1 of 12 months in Vientiane · #19 of 604 destinations to visit in December · comfort 91/100 (tier S)
Updated June 2026 · climate normals from ERA5 reanalysis
Vientiane climate normals — December
| Daytime high | 28°C / 82°F | 🥵 hot |
|---|---|---|
| Nighttime low | 17°C / 62°F | |
| Feels like (high) | 29°C / 84°F | |
| Rainfall | 0 mm / 0 in | ☀️ dry |
| Rainy days | 0 days | |
| Humidity | 62% | 💧 humid |
| Dew point | 15°C / 58°F | |
| Sunshine | 9.9 h/day | |
| Daylight | 11.1 h | |
| Wind | 11 km/h / 7 mph | |
| Air quality (US AQI) | 58 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Vientiane in December — FAQ
- Is December a good time to visit Vientiane?
- December in Vientiane: hot, dry — one of the best months to visit. It ranks #1 of 12 months for Vientiane on SeasonMap's comfort score (91/100).
- What is the weather like in Vientiane in December?
- In December, Vientiane averages a daily high of 27.5°C and a low of 16.8°C, with about 0.2 mm of rain over roughly 0 rainy days.
- What is the air quality in Vientiane in December?
- Vientiane has a mean US Air Quality Index of about 58 in December.