Last updated: August 22, 2025
In December, the average temperature in Chengdong, China hovers around 5°C (42°F). During this time, temperatures can dip as low as -9°C (16°F) and soar to a maximum of 20°C (68°F). Expect approximately 35 mm (1.4 in) of precipitation spread over about 6 days, with an average humidity level of 75%, creating a crisp and damp atmosphere.
In December in Chengdong, the average temperature is 5°C (42°F), with maximums reaching 20°C (68°F) and minimums dipping as low as -9°C (16°F). Travelers should be prepared for a wide range of temperatures, ensuring they pack both warm and mild-weather clothing.
In Chengdong in December, the total precipitation amount is 35 mm (1.4 in) spread over a period of 6 days.
In Chengdong in December, humidity is 75%. With an average temperature of 5°C (42°F), this humidity feels like a chilly dampness that clings to your clothes, making outdoor activities uncomfortable and requiring extra layers to stay warm while traveling.
In Chengdong in December, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Chengdong for better planning.
UV Risk Categories
Weather in Chengdong varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Chengdong, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 3°C (39°F) | 41 mm (1.6 inches) | 64% | moderate |
| February Weather | 5°C (41°F) | 34 mm (1.4 inches) | 71% | high |
| March Weather | 10°C (51°F) | 49 mm (1.9 inches) | 80% | high |
| April Weather | 15°C (60°F) | 51 mm (2.0 inches) | 83% | very high |
| May Weather | 21°C (70°F) | 123 mm (4.8 inches) | 80% | very high |
| June Weather | 25°C (77°F) | 120 mm (4.7 inches) | 81% | very high |
| July Weather | 28°C (82°F) | 249 mm (9.8 inches) | 88% | extreme |
| August Weather | 28°C (83°F) | 149 mm (5.9 inches) | 85% | extreme |
| September Weather | 24°C (75°F) | 97 mm (3.8 inches) | 72% | very high |
| October Weather | 18°C (64°F) | 58 mm (2.3 inches) | 76% | high |
| November Weather | 12°C (54°F) | 37 mm (1.5 inches) | 84% | moderate |
| December Weather | 5°C (42°F) | 35 mm (1.4 inches) | 75% | moderate |