December Weather in Longmen, China

Last updated: August 21, 2025

December in Longmen, China offers a refreshing climate characterized by a maximum temperature of 27°C (81°F), an average of 13°C (55°F), and a chilly minimum of 2°C (35°F). This month experiences about 30 mm (1.2 in) of precipitation over roughly 5 days, contributing to a humidity level of 74%. As the year winds down, December provides a unique blend of cooler air and occasional rainfall, making it an ideal time for visitors to enjoy the serene landscapes and cultural experiences that Longmen has to offer.

December Temperature in Longmen

As December rolls around in Longmen, China, the temperatures begin to reflect the transition into winter. The minimum temperature dips slightly to 2°C (35°F), while the average holds steady at a crisp 13°C (55°F). This month sees a maximum temperature of 27°C (81°F), a notable drop from the warmer months leading up to it. Compared to the warmer climate experienced in November, where temperatures peaked around 29°C (84°F), December marks a significant cooling off, but still offers a mild respite from the winter chill. The gradual decline in temperatures from the highs of summer to the cooler December indicates the region's shift from warmth to a cooler climate, setting the stage for the cold months ahead while maintaining a relatively pleasant atmosphere for outdoor activities.

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

The chart illustrates December temperature patterns in Longmen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Longmen, December typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec545561667376797977706355
Data source: Temperature data for Longmen 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 Longmen

In December, Longmen, China experiences a notable decline in precipitation, with only 30 mm (1.2 in) of rain spread across a mere 5 days. This reduction marks the month as one of the driest in the year, following a series of wetter months that peak in June with 322 mm (12.7 in). The shift from November's 48 mm (1.9 in) signifies a transition towards the drier winter months, where rainfall is less frequent and lighter. As the year closes, the trend shows a significant tapering of precipitation, highlighting Longmen's seasonal patterns and paving the way for the drier landscapes typical of January.

December Precipitation Trends in Longmen

The chart displays monthly precipitation patterns in Longmen, 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 Longmen, December typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec4581157145209322119211104554830
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Longmen

December in Longmen, China, witnesses a humidity level of 74%, reflective of the month-to-month trends as the year draws to a close. Following a rise from the relatively dry autumn months of September and October, which saw humidity drop to 61% and 62% respectively, December marks a noticeable uptick as the air retains more moisture. This increase aligns with the late-year trend where humidity generally rises, peaking in the summer months, particularly July at a humid 87%. As cold weather sets in, December provides a moderate balance, showcasing a comfortable humidity that hints at both the lingering warmth of the previous season and the cooler climate ahead.

December Average Humidity in Longmen

This chart illustrates the average monthly humidity levels in Longmen, 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 Longmen is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec66%70%77%76%85%80%87%84%61%62%67%74%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Longmen

In December, Longmen, China experiences a decrease in the UV Index to 7, categorizing it as high and extending the burn time to 25 minutes. This shift marks a notable reduction from the extreme levels seen in the peak summer months, where the Index soared to 13, indicating just 10 minutes of safe sun exposure. As the year winds down, the UV Index transitions from the intense values of spring and summer to the more moderate levels typical of winter, leading to safer sun practices. For a comprehensive view of UV levels throughout the year, visit Longmen UV Index.

Maximum UV Index Levels in Longmen for December

The chart shows the monthly maximum UV Index (UVI) for Longmen 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 Longmen typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec79121213131313121097
Data source: Longmen 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.

December Sunshine in Longmen

In Longmen, China, December brings 228 hours of sunshine, a delightful way to wrap up the year. As the days grow shorter, sunlight still offers a vibrant farewell to the cold season, showcasing a more luminous December compared to the preceding months. The sunshine hours generally decline from the summer's peak in July, which boasts a robust 303 hours, followed by a steady decrease through autumn. Interestingly, December's sunshine surpasses that of both October and November, suggesting a resilient glow as winter begins to settle in. This trend of gradually fading daylight is complemented by a remarkable spring resurgence, with hours rising swiftly from January’s 191 hours to May’s 275 hours, heralding a lush and radiant seasonal transition.

Monthly Sunshine Duration in Longmen: December Highlighted

The December sunshine duration represents the total number of hours Longmen experiences direct sunlight during the month of December, excluding cloudy or obstructed periods. This chart compares the sunshine duration of December with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec191h206h211h219h275h223h303h294h274h234h220h228h
Data source: Longmen December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Longmen During December

In December, Longmen, China experiences a 47% chance of sunny weather, maintaining a level of brightness similar to that of November. This marks a significant drop from the sunnier months at the beginning of the year, with January showcasing the highest probability of sunshine at 71%. As the seasons transition, the likelihood of sunny days generally decreases, with April and May presenting notably dim prospects, highlighted by low chances of 29% and 16%, respectively. Interestingly, December mirrors its preceding month, indicating that while the weather grows colder, the potential for sun remains consistently moderate, offering residents and visitors a blend of winter beauty and occasional sunshine.

Percentage of Sunny Days in December in Longmen

The chart illustrates the percentage of sunny days in Longmen throughout the year, with December highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Longmen experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec71%53%34%29%16%7%27%18%53%27%47%47%
Data source: Longmen December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Longmen in December

In Longmen, China, the rhythm of daylight unfolds with the changing seasons, showcasing a clear trend in duration throughout the year. Starting from January's 10 hours, daylight gradually increases, reaching a peak of 13 hours by late spring and summer months from May to July. This burst of daylight then begins to taper off, as the days shorten again, returning to 10 hours by December. Interestingly, the transition from summer to autumn sees a slight - but noticeable - decline to 12 hours in August and September, before further dwindling in October and November. The cyclical nature of daylight in Longmen paints a vivid picture of seasonal change, perfectly aligning with the natural flow of time.

Average Daylight Hours in Longmen for December

The chart illustrates the variation in daylight duration in Longmen throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 45m11h 17m12h12h 44m13h 21m13h 39m13h 30m12h 58m12h 16m11h 32m10h 54m10h 35m
Data source: Longmen daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Longmen

As December settles over Longmen, China, the wind whispers gently at an average speed of 1.7 m/s (4 mph), echoing the calm that defines the close of the year. While this month's breeze remains consistent with the seasonal themes of the preceding months, it stands out from a slight downward trend seen in the autumn, where September's winds were notably the gentlest at just 1.2 m/s (3 mph). Interestingly, the winds pick up briefly in May and October, reaching a higher 1.9 m/s (4 mph), but generally, the months reflect a soothing rhythm, inviting warmth and tranquility even as winter approaches. December's winds, much like the month itself, embody a serene balance—a gentle reminder of nature's rhythm as it prepares for the new year ahead.

Average December Wind Speed in Longmen

The chart displays monthly wind speed patterns in Longmen, with values for each month shown alongside December's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how December's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec1.61.51.61.31.91.81.61.41.21.91.71.7 m/s
Data source: Longmen December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Longmen Compares to Other Months

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

In December, temperatures in Longmen range from a minimum of 2°C (35°F) to a maximum of 27°C (81°F), with an average of 13°C (55°F). The month sees about 30 mm (1.2 in) of precipitation over five days, accompanied by a relatively high humidity of 74%. In contrast, January experiences colder conditions, with temperatures dropping to a minimum of -3°C (27°F) and a slightly lower maximum of 25°C (78°F), while the average temperature is 12°C (54°F). Precipitation increases to 45 mm (1.8 in) over the same number of days, but the humidity decreases to 66%. For more details on this month's weather, you can check Longmen weather in January.

In December, the weather is relatively mild with temperatures ranging from a minimum of 2°C (35°F) to a maximum of 27°C (81°F) and an average of 13°C (55°F). The month sees about 30 mm (1.2 in) of precipitation over 5 days, accompanied by a humidity level of 74%. In comparison, February experiences slightly cooler temperatures with a minimum of -2°C (28°F) and a maximum of 26°C (80°F), while still maintaining an average of 13°C (55°F). However, February is wetter, with 81 mm (3.2 in) of precipitation spread over 10 days and a lower humidity of 70%. For more detailed information on the weather in February, you can check Longmen weather in February.

In December, the weather tends to be milder with average temperatures ranging from a minimum of 2°C (35°F) to a maximum of 27°C (81°F). The month sees relatively low precipitation, averaging 30 mm (1.2 in) over about 5 days, and humidity levels sit at 74%. In contrast, March offers slightly warmer conditions with an average temperature ranging from 3°C (37°F) to 28°C (82°F). However, it experiences significantly higher rainfall, with an average of 157 mm (6.2 in) spread across 18 days, and the humidity increases slightly to 77%. For more detailed information about March weather, you can visit Longmen weather in March.

In December, the weather is relatively milder, with temperatures ranging from a minimum of 2°C (35°F) to a maximum of 27°C (81°F) and an average of 13°C (55°F). The month experiences low precipitation levels, with only 30 mm (1.2 in) falling over five days, while humidity sits around 74%. In contrast, April sees warmer temperatures, with a minimum of 4°C (39°F), an average of 19°C (66°F), and a maximum reaching up to 31°C (88°F). However, April is also much wetter, with a significant 145 mm (5.7 in) of rainfall over 16 days and slightly higher humidity at 76%. For more detailed insights into April weather, you can check Longmen weather in April.

In December, the weather tends to be milder, with temperatures ranging from a minimum of 2°C (35°F) to a maximum of 27°C (81°F), and an average of 13°C (55°F). This month experiences relatively low precipitation of 30 mm (1.2 in) over just 5 days, accompanied by a humidity level of 74%. In contrast, May brings significantly warmer temperatures, with a minimum of 10°C (51°F) and a maximum of 34°C (93°F), averaging around 23°C (73°F). However, this increase in warmth comes with considerable rainfall, totaling 209 mm (8.2 in) over 19 days and higher humidity at 85%. For more information, you can check Longmen weather in May.

December and June present contrasting weather conditions. In December, temperatures range from a minimum of 2°C (35°F) to a maximum of 27°C (81°F), with an average of 13°C (55°F). The month sees relatively light precipitation of 30 mm (1.2 in) over about 5 days and a humidity level of 74%. In stark contrast, June experiences much warmer weather, with temperatures ranging from a minimum of 18°C (65°F) to a maximum of 34°C (93°F), averaging 25°C (77°F). Additionally, June has significantly higher precipitation, totaling 322 mm (12.7 in) across 23 days, and a humidity level that increases slightly to 80%. To learn more about June’s unique weather attributes, check out Longmen weather in June.

In December, the weather features milder temperatures, with a minimum of 2°C (35°F) and an average of 13°C (55°F), peaking at 27°C (81°F). This month sees relatively low precipitation, totaling 30 mm (1.2 in) over about 5 days, and a humidity level of 74%. In stark contrast, July experiences much warmer temperatures, with a minimum of 21°C (69°F), an average of 26°C (80°F), and a maximum reaching 36°C (96°F). July is also significantly wetter, with 118 mm (4.7 in) of rainfall spread over 18 days, accompanied by high humidity at 87%. For a more detailed look at the weather during this month, check out Longmen weather in July.

In December, weather temperatures range from a minimum of 2°C (35°F) to a maximum of 27°C (81°F), with an average of 13°C (55°F). The month experiences relatively low precipitation of 30 mm (1.2 in) over about five days, along with a humidity level of 74%. In contrast, August brings much warmer temperatures, with a minimum of 20°C (69°F) and a maximum reaching up to 36°C (98°F), averaging around 26°C (79°F). However, it also sees significantly higher precipitation, totaling 211 mm (8.3 in) over approximately 20 days, resulting in a higher humidity level of 84%. These contrasting weather patterns highlight the distinct climatic conditions experienced in December and August. For more on August weather specifics, you can refer to Longmen weather in August.

When comparing the weather in December and September, it's evident that September is significantly warmer, with average temperatures ranging from a minimum of 16°C (61°F) to a maximum of 36°C (97°F). In contrast, December experiences cooler conditions, with temperatures ranging from a minimum of 2°C (35°F) to a maximum of 27°C (81°F). September also sees much higher precipitation levels at 104 mm (4.1 in) over 13 days, compared to December's 30 mm (1.2 in) over just 5 days, making the latter a drier month. Additionally, September has a lower humidity of 61%, while December's humidity sits at a higher 74%. For more details on the weather during September, you can refer to Longmen weather in September.

When comparing the weather in December to that in October, notable differences emerge. December sees cooler temperatures, with a minimum of 2°C (35°F) and an average of 13°C (55°F), whereas October boasts a milder range, starting from a minimum of 9°C (48°F) and averaging 21°C (71°F). In terms of maximum temperatures, December reaches up to 27°C (81°F) compared to October's higher peak of 34°C (93°F). Precipitation is also more prevalent in October, with 55 mm (2.2 in) falling over 8 days, while December averages only 30 mm (1.2 in) over 5 days. Humidity levels are higher in December at 74%, while October's humidity is more moderate at 62%. For more detailed information on October weather, check out Longmen weather in October.

In November, the weather is generally warmer, with an average temperature of 17°C (63°F) and maximums reaching up to 29°C (84°F). This month experiences about 48 mm (1.9 in) of precipitation over 8 days, accompanied by a relatively lower humidity of 67%. In contrast, December brings cooler temperatures, with an average of 13°C (55°F) and max temperatures hitting 27°C (81°F). Precipitation decreases to 30 mm (1.2 in) across 5 days, and humidity rises slightly to 74%. For more details on November's weather in Longmen, you can visit Longmen weather in November.

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Conclusion: What to Expect From December Weather in Longmen

As December rolls into Longmen, the weather takes a noticeable turn, marked by cooler temperatures and heightened humidity levels. While the maximum temperature can still reach a pleasant 27°C, the average drops significantly, fostering a crisp atmosphere that contrasts sharply with the warmer months. With an average humidity of 74% and about five days of rain contributing to a total precipitation of 30 mm, December is quite different from the drier, hotter months. This transition invites locals and visitors alike to embrace the unique charm of winter in Longmen, making it a special time to explore the region. To learn more about how this month fits into the broader weather patterns, check out Longmen Climate.