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December Weather in Jiannan, China

Last updated: August 22, 2025

In December, the average temperature in Jiannan, China hovers around 7°C (45°F). Expect chilly nights with a minimum of -4°C (26°F), while daytime highs can reach up to 15°C (60°F). Be prepared for 47 mm (1.9 in) of precipitation over 12 days, and note the high average humidity of 90%, ensuring a damp atmosphere throughout the month.

December Temperature in Jiannan

In December in Jiannan, the average temperature is 7°C (45°F). Maximums can reach 15°C (60°F), while minimums can dip as low as -4°C (26°F). Pack accordingly to enjoy a comfortable trip, whether you're exploring the outdoors or visiting local attractions.

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

The chart illustrates December temperature patterns in Jiannan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Jiannan, December typically has an average temperature of 7°C (45°F), with highs reaching up to 15°C (60°F) and lows dropping to around -4°C (26°F).
JanFebMarAprMayJunJulAugSepOctNovDec434656647176797971615344
Data source: Temperature data for Jiannan 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 Jiannan

In Jiannan in December, the total precipitation amount reaches 47 mm (1.9 in) over the course of 12 days.

December Precipitation Trends in Jiannan

The chart displays monthly precipitation patterns in Jiannan, 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 Jiannan, December typically receives around 47 mm (1.9 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec33334970781023023001681104947
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Jiannan

In Jiannan in December humidity is 90%. With an average temperature of 7°C (45°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and prompting travelers to seek shelter indoors or in cozy cafes.

December Average Humidity in Jiannan

This chart illustrates the average monthly humidity levels in Jiannan, 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 Jiannan is approximately 90%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%92%90%86%87%88%89%92%92%92%92%90%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Jiannan

In Jiannan 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 Jiannan for better planning.

Maximum UV Index Levels in Jiannan for December

The chart shows the monthly maximum UV Index (UVI) for Jiannan 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 Jiannan typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468101212101110864
Data source: Jiannan 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 Jiannan Compares to Other Months

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

This table compares monthly weather conditions in Jiannan, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (43°F)33 mm (1.3 inches)90%moderate
February Weather8°C (47°F)33 mm (1.3 inches)92%high
March Weather14°C (57°F)49 mm (1.9 inches)89%very high
April Weather18°C (64°F)70 mm (2.8 inches)85%very high
May Weather21°C (71°F)78 mm (3.1 inches)87%extreme
June Weather24°C (76°F)101 mm (4.0 inches)88%extreme
July Weather26°C (79°F)302 mm (11.9 inches)89%very high
August Weather26°C (79°F)300 mm (11.8 inches)92%extreme
September Weather22°C (71°F)168 mm (6.6 inches)92%very high
October Weather16°C (62°F)110 mm (4.3 inches)92%very high
November Weather12°C (53°F)49 mm (1.9 inches)92%high
December Weather7°C (45°F)47 mm (1.9 inches)90%moderate

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