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December Weather in Yunyan, China

Last updated: August 22, 2025

In December, the average temperature in Yunyan, China hovers around 9°C (49°F). Be prepared for a chill, as temperatures can dip to a chilly -2°C (28°F), but may also reach a comfortable 25°C (77°F) on warmer days. Expect about 34 mm (1.4 in) of precipitation spread across 8 days, contributing to an average humidity level of 70%.

December Temperature in Yunyan

In December in Yunyan, the average temperature is 9°C (49°F). Maximums can reach 25°C (77°F), while minimums can drop as low as -2°C (28°F). This climate makes Yunyan an ideal destination for travelers who enjoy mild weather and the possibility of experiencing both warm and chilly days.

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

The chart illustrates December temperature patterns in Yunyan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Yunyan, December typically has an average temperature of 9°C (49°F), with highs reaching up to 25°C (77°F) and lows dropping to around -2°C (28°F).
JanFebMarAprMayJunJulAugSepOctNovDec464959657479838279675948
Data source: Temperature data for Yunyan 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 Yunyan

In Yunyan in December, the precipitation amount is 34 mm (1.4 in) over the course of 8 days.

December Precipitation Trends in Yunyan

The chart displays monthly precipitation patterns in Yunyan, 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 Yunyan, December typically receives around 34 mm (1.4 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec53941631471472149810283537334
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Yunyan

In Yunyan in December, humidity is 70%. With an average temperature of 9°C (49°F), this humidity feels like a chilly dampness that seeps into your bones, making it necessary to dress in layers and pack an umbrella for your travels.

December Average Humidity in Yunyan

This chart illustrates the average monthly humidity levels in Yunyan, 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 Yunyan is approximately 70%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec63%66%77%73%85%83%89%88%62%56%63%70%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Yunyan

In Yunyan in December, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Yunyan, you can refer to this Hourly UV Index in Yunyan.

Maximum UV Index Levels in Yunyan for December

The chart shows the monthly maximum UV Index (UVI) for Yunyan 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 Yunyan typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec79111213131313111086
Data source: Yunyan 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 Yunyan Compares to Other Months

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

This table compares monthly weather conditions in Yunyan, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (46°F)53 mm (2.1 inches)63%high
February Weather9°C (49°F)94 mm (3.7 inches)66%very high
March Weather15°C (59°F)163 mm (6.4 inches)77%extreme
April Weather18°C (65°F)147 mm (5.8 inches)73%extreme
May Weather23°C (74°F)147 mm (5.8 inches)85%extreme
June Weather26°C (79°F)214 mm (8.4 inches)83%extreme
July Weather28°C (83°F)98 mm (3.9 inches)89%extreme
August Weather28°C (83°F)102 mm (4.0 inches)88%extreme
September Weather26°C (79°F)83 mm (3.3 inches)62%extreme
October Weather19°C (67°F)53 mm (2.1 inches)56%very high
November Weather15°C (59°F)73 mm (2.9 inches)63%very high
December Weather9°C (49°F)34 mm (1.4 inches)70%high

Compare Yunyan's Climate with Cities Worldwide