Last updated: August 22, 2025
In December, the average temperature in Yanshan, China hovers around 5°C (41°F), bringing a mix of chilly and mild days. Temperatures can dip as low as -5°C (23°F) at night, while daytime highs can reach up to 17°C (63°F). Expect 55 mm (2.2 in) of precipitation spread over approximately 12 days, contributing to an average humidity of 75%. Whether you're bracing for a brisk stroll or enjoying a cozy day indoors, this month offers a unique atmosphere!
In December, in Yanshan, the average temperature is 5°C (41°F). Maximums can reach 17°C (63°F), while minimums can drop to as low as -5°C (23°F). Pack for a wide range of temperatures and enjoy the beauty of Yanshan during this month!
In Yanshan in December, the total precipitation amount is 55 mm (2.2 in) over a span of 12 days.
In Yanshan in December, humidity is 75%. With an average temperature of 5°C (41°F), this humidity feels like a damp chill that seeps into your bones, making outdoor exploration less inviting and requiring extra layers for comfort while traveling.
In Yanshan in December, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Yanshan.
UV Risk Categories
Weather in Yanshan varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Yanshan, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 4°C (39°F) | 75 mm (2.9 inches) | 67% | high |
| February Weather | 5°C (42°F) | 76 mm (3.0 inches) | 73% | very high |
| March Weather | 11°C (51°F) | 144 mm (5.7 inches) | 84% | very high |
| April Weather | 15°C (59°F) | 140 mm (5.5 inches) | 82% | extreme |
| May Weather | 19°C (66°F) | 253 mm (10.0 inches) | 86% | extreme |
| June Weather | 22°C (72°F) | 259 mm (10.2 inches) | 86% | extreme |
| July Weather | 25°C (77°F) | 217 mm (8.6 inches) | 88% | extreme |
| August Weather | 25°C (77°F) | 166 mm (6.5 inches) | 85% | extreme |
| September Weather | 21°C (70°F) | 223 mm (8.8 inches) | 71% | very high |
| October Weather | 15°C (59°F) | 142 mm (5.6 inches) | 74% | very high |
| November Weather | 10°C (51°F) | 95 mm (3.7 inches) | 85% | high |
| December Weather | 5°C (41°F) | 55 mm (2.2 inches) | 75% | moderate |