Last updated: August 21, 2025
In Nanjing, China, December unveils a cool, crisp climate characterized by an average temperature of 9°C (49°F), ranging from a maximum of 18°C (65°F) to a minimum of 1°C (35°F). Rainfall is present, with 27 mm (1.1 in) of precipitation spread over 7 days, leading to a humidity level of 81%. This combination creates a refreshing winter ambiance, inviting visitors to experience Nanjing's blend of vibrant culture and serene winter landscapes.
In December, Nanjin, China, experiences a noticeable drop in temperatures as winter settles in. With a minimum of 1°C (35°F) and an average hovering around 9°C (49°F), the city welcomes brisk, chilly days that signal the end of the autumn warmth. While daytime highs can still reach a mild 18°C (65°F), the trend towards colder weather becomes apparent as temperatures decline from the more temperate conditions of November. This month serves as a reminder of the approaching winter, contrasting sharply with the sweltering heat of the summer months, and drawing residents and visitors alike to bundle up and embrace the cozy charm of Nanjin in winter.
December in Nanjing, China sees a modest precipitation of 27 mm (1.1 in), marking a gentle transition from the wetter months of summer and autumn. This month experiences rainfall on approximately 7 days, slightly less than the November average of 39 mm (1.5 in) over 9 days. As the year comes to a close, the precipitation levels suggest a trend toward drier conditions, with December rainfall tapering off compared to the heavier downpours of the preceding summer months, where July and August notably recorded over 200 mm. This gradual decrease in precipitation reflects the changing seasons in Nanjing, creating a serene atmosphere as the city prepares for winter.
In Nanjing, China, December brings a notable shift in humidity levels, maintaining an 81% average that echoes the city's typically high moisture levels throughout the year. As the cooler winter months approach, humidity noticeably fluctuates, starting at 72% in January and peaking at 87% in August. The overall trend reveals a gradual rise in humidity from January through August, followed by a slight dip in the fall. While December's humidity is lower than the peak summer months, it remains relatively high, reflecting the region's subtropical climate. This consistent moisture can make the winter air feel chillier, setting a distinctive atmospheric tone for the end of the year.
In Nanjin, China, the UV Index tends to decline as the year transitions into December, where it reaches a moderate level of 4, allowing for a more generous burn time of 30 minutes. This shift contrasts sharply with the extreme levels experienced over the summer months, peaking at 11 from May through September, where outdoor exposure required caution and limited sun time to just 10 minutes to avoid burns. As the year progresses, a notable trend emerges: higher UV levels in spring and summer, giving way to more manageable indices in autumn and winter. While December may bring some relief with an increased burn time, it's still wise to stay informed about UV exposure, which you can monitor at Nanjin UV Index.
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In December, Nanjing experiences a modest 132 hours of sunshine, reflecting a trend of diminishing daylight as winter sets in. This marks a noticeable dip compared to the sun-drenched summer months, where hours peaked at an impressive 318 in August. However, December's sunshine is consistent with a gradual decline seen throughout the year, dropping from 259 hours in May and tapering off modestly, alongside the chilly air of winter. As the year closes, this fleeting sunshine serves as a gentle reminder of the vibrant brightness that once illuminated the city and sets the stage for a new year filled with hope for sunnier days ahead.
In Nanjing, December experiences a moderate 25% chance of sunny weather, reflecting a trend of decreasing sunshine as the year progresses. The likelihood of sun gradually declines from the 33% peak in January and July, reaching its lowest during the summer months of June and August. While December may not guarantee clear skies, it offers a slight improvement over the gloomy days typical of late autumn, such as November's 23%. As winter sets in, residents can still hope for a few bright days amidst the cooler temperatures, making December a transitional month in Nanjing's weather patterns.
In Nanjing, China, the daylight duration experiences a captivating rhythm throughout the year. Starting the year with 10 hours of daylight in January, the days gradually lengthen, reaching a peak of 14 hours in June. This increase coincides with the vibrant spring and summer months, where nature thrives under the sun's warm embrace. As summer fades, daylight hours gently decrease, dropping back to 10 hours by December, mirroring the cyclic nature of the seasons. Notably, the transitions between months show a gradual ebb and flow, except for the sharp decline from June to July, where daylight retracts to 13 hours. Overall, each month contributes to a beautiful balance of light and darkness, enriching Nanjing's dynamic seasonal experience.
As December sweeps into Nanjin, China, the winds take on a softer demeanor, with average speeds dropping to 1.4 m/s (3 mph), the lowest of the year. This gradual decline in wind velocity is a continuation of a subtle trend observed since the summer months, where wind speeds peaked in March at 1.9 m/s (4 mph) before steadily settling into December's calm. The generally gentle breezes of the month create a peaceful ambiance, inviting residents to embrace the quiet charm of the season. While winter settles in, the drops in wind speed hint at a retreat from the vigor of earlier months, providing a serene backdrop for the holiday spirit in Nanjin.
Weather in Nanjin varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Nanjin, focusing on differences in temperature, rainfall, humidity, and UV levels.
December and January in Nanjin present notable differences in weather characteristics. December experiences milder temperatures, with a minimum of 1°C (35°F) and a maximum of 18°C (65°F), while January sees slightly cooler temperatures, dropping to a minimum of -2°C (29°F) and a maximum of 17°C (62°F). Despite averaging the same temperature of 9°C (49°F), January's overall chillier air leads to lower humidity levels at 72%, compared to December's higher humidity of 81%. Additionally, January records less precipitation, with only 23 mm (0.9 in) falling over 5 days, compared to December's 27 mm (1.1 in) over 7 days. For more details on conditions in January, visit Nanjin weather in January.
In December, the weather features mild temperatures with a minimum of 1°C (35°F) and an average of 9°C (49°F), reaching a maximum of 18°C (65°F). Precipitation is relatively low at 27 mm (1.1 in) over about 7 days, and humidity remains high at 81%. In contrast, February experiences slightly warmer conditions with a minimum temperature of 1°C (35°F) and an average of 10°C (51°F), peaking at a notable 27°C (80°F). Precipitation increases slightly to 32 mm (1.3 in) over just 6 days, and humidity decreases to 76%. For more details, you can explore Nanjin weather in February.
In December, temperatures range from a minimum of 1°C (35°F) to a maximum of 18°C (65°F), with an average of 9°C (49°F). The month experiences about 27 mm (1.1 in) of precipitation over approximately 7 days and maintains a high humidity level of 81%. In contrast, March sees a notable increase in temperatures, with a minimum of 6°C (44°F) and a maximum soaring to 33°C (91°F), averaging 16°C (60°F). However, it also brings more precipitation, totaling 67 mm (2.6 in) over about 12 days, with humidity remaining similar at 80%. For a detailed outlook on March weather patterns, you can visit Nanjin weather in March.
In December, the weather is relatively cool with temperatures ranging from a minimum of 1°C (35°F) to a maximum of 18°C (65°F), and an average temperature of 9°C (49°F). The month sees about 27 mm (1.1 in) of precipitation over approximately 7 days, with humidity levels averaging around 81%. In contrast, April experiences much warmer temperatures, with a minimum of 9°C (48°F) and a maximum soaring to 36°C (96°F), along with an average of 19°C (67°F). Precipitation is significantly higher in April, totaling 121 mm (4.8 in) over 14 days, while humidity remains relatively lower at 77%. For more detailed information, you can visit Nanjin weather in April.
In December, the weather tends to be much cooler, with temperatures ranging from a minimum of 1°C (35°F) to a maximum of 18°C (65°F) and an average of 9°C (49°F). It experiences lighter precipitation, totaling 27 mm (1.1 in) over about 7 days, with a humidity level of 81%. In contrast, May brings significantly warmer conditions, featuring temperatures that range from a minimum of 13°C (55°F) to blazing highs of 36°C (97°F), with an average temperature of 22°C (73°F). This month sees considerably higher precipitation at 151 mm (6.0 in), spread over 16 days, with humidity slightly elevated at 82%. For more detailed information, you can check out Nanjin weather in May.
In December, the weather is cool with temperatures ranging from a minimum of 1°C (35°F) to a maximum of 18°C (65°F), leading to an average temperature of 9°C (49°F). The month sees about 27 mm (1.1 in) of precipitation over approximately 7 days, coupled with a humidity level of 81%. In contrast, June brings a much warmer climate with temperatures soaring from a minimum of 17°C (64°F) to a maximum of 36°C (96°F), yielding an average of 25°C (77°F). This month experiences significantly higher precipitation at 134 mm (5.3 in) spread over 16 days, along with increased humidity at 85%. For a closer look at June's weather specifics, check Nanjin weather in June.
December and July present stark contrasts in weather conditions. In December, temperatures range from a minimum of 1°C (35°F) to a maximum of 18°C (65°F), with an average temperature of 9°C (49°F). The month experiences relatively low precipitation of 27 mm (1.1 in) over 7 days, along with high humidity levels at 81%. Conversely, July boasts much warmer weather, with temperatures ranging from a minimum of 21°C (70°F) to a scorching maximum of 43°C (109°F), and an average of 29°C (84°F). This month is significantly wetter, receiving 205 mm (8.1 in) of rain over 16 days, while humidity remains high at 85%. For a closer look at the weather specifics, you can refer to Nanjin weather in July.
December and August present strikingly different weather conditions. In December, temperatures range from a chilly minimum of 1°C (35°F) to a pleasant average of 9°C (49°F), with a maximum of 18°C (65°F). The month sees about 27 mm (1.1 in) of precipitation over approximately 7 days, accompanied by a humidity level of 81%. In contrast, August brings much warmer weather, featuring a minimum temperature of 19°C (67°F) and an average of 30°C (86°F), soaring to a maximum of 41°C (107°F). This summer month is significantly wetter, with 149 mm (5.9 in) of rain across about 14 days and a humidity level of 87%. For more detailed information, you can visit Nanjin weather in August.
In December, the weather is significantly cooler compared to September, with temperatures ranging from a minimum of 1°C (35°F) to a maximum of 18°C (65°F) and an average of 9°C (49°F). The month sees relatively low precipitation at 27 mm (1.1 in) over 7 days, resulting in a humidity level of 81%. In contrast, September experiences much warmer conditions, with temperatures ranging from a minimum of 17°C (63°F) to a sweltering maximum of 39°C (102°F), averaging 24°C (76°F). However, it is also a wetter month, receiving 157 mm (6.2 in) of rainfall across 16 days, resulting in a slight increase in humidity to 84%. For more detailed information, you can visit Nanjin weather in September.
Comparing the weather in December and October reveals significant differences in temperature and precipitation. In December, the temperatures are notably cooler, with a minimum of 1°C (35°F) and an average of 9°C (49°F), while October boasts a much warmer average of 18°C (65°F) and a maximum that can reach as high as 36°C (96°F). Precipitation also varies greatly; December experiences about 27 mm (1.1 in) of rainfall over 7 days, in contrast to October's much wetter climate with 108 mm (4.2 in) over 16 days. Despite both months having similar humidity levels at 81%, October's higher temperatures and more frequent rain create a distinctly different weather experience. For a detailed look at October weather, visit Nanjin weather in October.
In November, the weather is notably warmer with average temperatures ranging from a minimum of 5°C (41°F) to a maximum of 25°C (77°F), while December sees a drop in temperatures, with a minimum of 1°C (35°F) and a maximum of 18°C (65°F). November also experiences higher average temperatures at 14°C (57°F) compared to December's average of 9°C (49°F). Precipitation is slightly higher in November, totaling 39 mm (1.5 in) over 9 days, compared to December's 27 mm (1.1 in) over 7 days. However, humidity levels are slightly lower in December at 81%, compared to 86% in November. For more detailed insights into November's weather, check out Nanjin weather in November.
As December descends upon Nanjin, the city's climate shifts to a cooler and wetter atmosphere compared to the vibrant warmth of preceding months. While temperatures are mild, with an average hovering around 9°C, the increased humidity at 81% often makes the cool air feel even chillier. This month also sees a few more rainy days, totaling around 7, which adds to the city's charm as it transitions into the winter season. For those looking to explore Nanjin's unique December weather and what it has to offer, you can find more information at Nanjin Climate.