Chengdu Weather in December
China · Humid Subtropical climate · Data averaged from 2020-01-01 to 2024-12-31 (5 years)
December in Chengdu sees average temperatures ranging from a low of 4.1°C (39.4°F) to a high of 10.8°C (51.4°F), with a mean of 7.2°C (45.0°F). Compared to the annual average of 17.7°C (63.9°F), this month is 10.5°C cooler than the yearly norm. Precipitation averages 16.3mm, making it approximately 78.0mm drier than the monthly average of 94.0mm. This is the driest month of the year, with just 16.3mm of precipitation. The city receives an average of 4.4 hours of sunshine per day during December, with relative humidity averaging 76.6%. Wind speeds reach an average maximum of 10.9 km/h. For travelers, this month offers a temperature experience in Chengdu, with drier-than-average conditions compared to the rest of the year.
Chengdu is famous for its overcast skies, and the data confirms why. The city sits in the Sichuan Basin, which creates a unique microclimate with persistent cloud cover. I visited during the pandas' outdoor season and found the mild temperatures perfect for the city's outdoor attractions. The best time to visit is March to June and September to November, when the weather is mildest.
December vs Adjacent Months
| Metric | November | December | January |
|---|---|---|---|
| Mean Temp | 13.2°C (55.8°F) | 7.2°C (45.0°F) | 7.1°C (44.8°F) |
| Rainfall | 18.1mm | 16.3mm | 17.0mm |
| Sunshine | 4.5 hrs | 4.4 hrs | 4.5 hrs |
| Humidity | 77.9% | 76.6% | 75.3% |
| Wind | 11.5 km/h | 10.9 km/h | 11.1 km/h |
| Rainy Days | 13.2 | 11.6 | 13.8 |
| Snowfall | 0.0 cm | 0.0 cm | 1.1 cm |
Seasonal Context
December falls in Winter in the Northern Hemisphere. Winter is the coolest season with the shortest daylight hours. For travelers visiting Chengdu in December, the data indicates mixed conditions based on the combination of temperature, precipitation, and daylight hours.
Frequently Asked Questions
What is the average temperature in Chengdu in December?
The average temperature in Chengdu during December ranges from 4.1°C (39.4°F) to 10.8°C (51.4°F), with a mean of 7.2°C (45.0°F).
How much does it rain in Chengdu in December?
Chengdu receives an average of 16.3mm of precipitation in December, spread across approximately 11.6 rainy days. This is the driest month of the year.
What should I pack for Chengdu in December?
Based on December weather data, pack warm layers, a medium jacket, and waterproof outerwear.
Is December a good time to visit Chengdu?
December is a cooler month, suitable for travelers who prefer mild weather and fewer crowds. Pack warm layers and enjoy indoor attractions.
Other Months for Chengdu
Cities with Similar December Climate (Humid Subtropical)
Data Source: Open-Meteo historical archive (2020-01-01 to 2024-12-31). Daily measurements aggregated into monthly climate normals. Coordinates: 30.57°, 104.07°. Timezone: Asia/Shanghai. Last updated: 2026-07-30.