Chengdu weather in December
December in Chengdu: cold, dry, with poor air quality — a good time to visit.
#8 of 12 months in Chengdu · #345 of 604 destinations to visit in December · comfort 67/100 (tier C)
Updated June 2026 · climate normals from ERA5 reanalysis
Chengdu climate normals — December
| Daytime high | 11°C / 52°F | 🧥 cold |
|---|---|---|
| Nighttime low | 4°C / 40°F | |
| Feels like (high) | 9°C / 48°F | |
| Rainfall | 5 mm / 0.2 in | ☀️ dry |
| Rainy days | 1 days | |
| Humidity | 73% | 💧 humid |
| Dew point | 3°C / 37°F | |
| Sunshine | 5.8 h/day | |
| Daylight | 10.2 h | |
| Wind | 10 km/h / 6 mph | |
| Air quality (US AQI) | 174 | ⚠️ unhealthy |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Chengdu in December — FAQ
- Is December a good time to visit Chengdu?
- December in Chengdu: cold, dry, with poor air quality — a good time to visit. It ranks #8 of 12 months for Chengdu on SeasonMap's comfort score (67/100).
- What is the weather like in Chengdu in December?
- In December, Chengdu averages a daily high of 10.9°C and a low of 4.2°C, with about 4.9 mm of rain over roughly 1.4 rainy days.
- What is the air quality in Chengdu in December?
- Chengdu has a mean US Air Quality Index of about 174 in December.