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December Weather in Jiannan, China

Last updated: August 22, 2025

In Jiannan, China, the average temperature in December hovers around 6°C (44°F). Expect chilly nights, with minimum temperatures dipping to -2°C (28°F), while daytime highs can reach a pleasant 17°C (62°F). Precipitation is quite common, averaging 40 mm (1.6 in) spread over 9 days, contributing to an average humidity of 81%. Prepare for a mix of cool weather and damp conditions!

December Temperature in Jiannan

In December in Jiannan, the average temperature is 6°C (44°F), with maximums reaching 17°C (62°F) and minimums dipping as low as -2°C (28°F). This range makes it a great time for travelers to prepare for a mix of cool and mild weather, perfect for exploring the area's 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 6°C (44°F), with highs reaching up to 17°C (62°F) and lows dropping to around -2°C (28°F).
JanFebMarAprMayJunJulAugSepOctNovDec414454616773787971615243
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 precipitation amount is 40 mm (1.6 in) over the course of 9 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 40 mm (1.6 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec44581281721812282732161711187540
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 81%. With an average temperature of 6°C (44°F), this humidity feels like a heavy blanket, making every step outside feel damp and chilling, which can dampen the excitement of traveling.

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 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec72%76%87%82%83%84%87%85%77%81%86%81%
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 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 Jiannan.

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 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec5610111212121211975
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 Weather5°C (42°F)44 mm (1.7 inches)72%moderate
February Weather7°C (45°F)58 mm (2.3 inches)76%high
March Weather12°C (54°F)128 mm (5.0 inches)87%very high
April Weather16°C (61°F)172 mm (6.8 inches)82%extreme
May Weather19°C (67°F)181 mm (7.1 inches)83%extreme
June Weather23°C (73°F)228 mm (9.0 inches)84%extreme
July Weather26°C (78°F)273 mm (10.7 inches)87%extreme
August Weather26°C (79°F)216 mm (8.5 inches)85%extreme
September Weather22°C (71°F)171 mm (6.7 inches)77%extreme
October Weather16°C (61°F)118 mm (4.6 inches)81%very high
November Weather11°C (52°F)75 mm (3.0 inches)86%high
December Weather6°C (44°F)40 mm (1.6 inches)81%moderate

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