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December Weather in Bayan, China

Last updated: August 23, 2025

In December, the average temperature in Bayan, China hovers around -10°C (14°F). While the mercury can dip as low as -27°C (-16°F), it may rise to a mild 5°C (42°F). Expect light precipitation, averaging 6 mm (0.2 in) over just 2 days, and a notable average humidity of 71%.

December Temperature in Bayan

In December in Bayan, the average temperature is -10°C (14°F). Maximum temperatures can reach 5°C (42°F), while minimums can drop to a chilling -27°C (-16°F). Travelers should be well-prepared for extreme cold and pack appropriate winter clothing.

December Weather in Bayan: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Bayan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bayan, December typically has an average temperature of -10°C (14°F), with highs reaching up to 5°C (42°F) and lows dropping to around -27°C (-16°F).
JanFebMarAprMayJunJulAugSepOctNovDec131829374551555447362414
Data source: Temperature data for Bayan generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Bayan

In Bayan in December, the precipitation amount is 6 mm (0.2 in) over the course of 2 days.

December Precipitation Trends in Bayan

The chart displays monthly precipitation patterns in Bayan, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Bayan, December typically receives around 6 mm (0.2 inches) of precipitation spread over approximately 2 days.
JanFebMarAprMayJunJulAugSepOctNovDec8922557610510214010860136
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Bayan

In Bayan in December humidity is 71%. With an average temperature of -10°C (14°F), this humidity feels like a biting chill that clings to your skin, making travel feel more arduous as the cold air cuts through layers of clothing, leaving you longing for warmth at every turn.

December Average Humidity in Bayan

This chart illustrates the average monthly humidity levels in Bayan, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Bayan is approximately 71%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec74%80%81%78%71%77%77%82%82%85%80%71%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Bayan

In Bayan 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 Bayan for better planning.

Maximum UV Index Levels in Bayan for December

The chart shows the monthly maximum UV Index (UVI) for Bayan in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Bayan typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec469121314141211864
Data source: Bayan December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How December Weather in Bayan Compares to Other Months

Weather in Bayan varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Bayan, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Bayan, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-11°C (13°F)8 mm (0.3 inches)74%moderate
February Weather-8°C (19°F)8 mm (0.3 inches)80%high
March Weather-1°C (30°F)22 mm (0.9 inches)81%very high
April Weather3°C (38°F)55 mm (2.1 inches)78%extreme
May Weather7°C (45°F)76 mm (3.0 inches)71%extreme
June Weather11°C (51°F)105 mm (4.1 inches)77%extreme
July Weather13°C (56°F)102 mm (4.0 inches)77%extreme
August Weather12°C (54°F)140 mm (5.5 inches)82%extreme
September Weather9°C (48°F)108 mm (4.3 inches)82%extreme
October Weather2°C (36°F)59 mm (2.3 inches)85%very high
November Weather-5°C (24°F)13 mm (0.5 inches)79%high
December Weather-10°C (14°F)6 mm (0.2 inches)71%moderate

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