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December Weather in Jiantang, China

Last updated: August 22, 2025

In December, the average temperature in Jiantang, China hovers around -15°C (4°F), with extremes ranging from a frigid -30°C (-22°F) to a relatively mild 7°C (45°F). Expect about 10 mm (0.4 in) of precipitation spread across 2 days, accompanied by a comfortable average humidity level of 66%.

December Temperature in Jiantang

In December in Jiantang, the average temperature is -15°C (4°F), with maximums reaching 7°C (45°F) and minimums plummeting to -30°C (-22°F). Travelers should prepare for extremely cold conditions and dress appropriately for outdoor activities.

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

The chart illustrates December temperature patterns in Jiantang, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Jiantang, December typically has an average temperature of -15°C (4°F), with highs reaching up to 7°C (45°F) and lows dropping to around -30°C (-22°F).
JanFebMarAprMayJunJulAugSepOctNovDec172743566473685842234
Data source: Temperature data for Jiantang 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 Jiantang

In Jiantang in December, the precipitation amount is 10 mm (0.4 in) over a period of 2 days.

December Precipitation Trends in Jiantang

The chart displays monthly precipitation patterns in Jiantang, 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 Jiantang, December typically receives around 10 mm (0.4 inches) of precipitation spread over approximately 2 days.
JanFebMarAprMayJunJulAugSepOctNovDec61025369311712220589293610
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Jiantang

In Jiantang in December humidity is 66%. With an average temperature of -15°C (4°F), this humidity feels like a biting chill that seeps through your clothing, making travel conditions quite uncomfortable as the damp cold clings to your skin and muffles the sounds of the surroundings.

December Average Humidity in Jiantang

This chart illustrates the average monthly humidity levels in Jiantang, 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 Jiantang is approximately 66%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%79%71%65%70%82%87%88%86%83%65%66%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Jiantang

In Jiantang in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Jiantang, you can visit Hourly UV Index in Jiantang.

Maximum UV Index Levels in Jiantang for December

The chart shows the monthly maximum UV Index (UVI) for Jiantang 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 Jiantang typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2357891097422
Data source: Jiantang 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 Jiantang Compares to Other Months

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

This table compares monthly weather conditions in Jiantang, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-17°C (1°F)6 mm (0.2 inches)84%low
February Weather-14°C (8°F)10 mm (0.4 inches)79%moderate
March Weather-3°C (27°F)25 mm (1.0 inches)71%moderate
April Weather6°C (43°F)36 mm (1.4 inches)65%high
May Weather13°C (56°F)93 mm (3.6 inches)70%very high
June Weather18°C (64°F)117 mm (4.6 inches)82%very high
July Weather23°C (73°F)122 mm (4.8 inches)87%very high
August Weather20°C (68°F)205 mm (8.1 inches)88%very high
September Weather14°C (58°F)89 mm (3.5 inches)86%high
October Weather5°C (42°F)29 mm (1.1 inches)83%moderate
November Weather-5°C (23°F)36 mm (1.4 inches)65%low
December Weather-15°C (4°F)10 mm (0.4 inches)66%low

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