Last updated: August 21, 2025
December in Nanjing, China offers a diverse climate experience, with temperatures ranging from a chilly 0°C (32°F) at night to a mild 26°C (79°F) during the day. The average temperature settles around 11°C (52°F), making it a time for layering up while enjoying the cooler air. Rainfall, though moderate at 31 mm (1.2 in) over approximately 5 days, adds a refreshing touch to the winter atmosphere, accompanied by 70% humidity that contributes to a crisp feel. Whether you're exploring the city's historic sites or relaxing in its scenic parks, December's weather is as dynamic as Nanjing itself.
As December rolls in, Nanjing experiences a noticeable drop in temperatures, transitioning into the heart of winter. The minimum temperatures hover around freezing at 0°C (32°F), while the average climbs to a crisp 11°C (52°F). Despite the chilly vibe, the days can surprise with maximums reaching a pleasant 26°C (79°F), making it a month of contrasts. This trend reflects a broader seasonal pattern in Nanjing, where temperatures gradually decline from the mild fall of November to the cold snaps typical of winter, creating a refreshing ambiance perfect for exploring the city's rich cultural heritage or enjoying warm local dishes. As the year winds down, Nanjing's December weather invites both residents and visitors to embrace the unique charm of the season.
In December, Nanjing experiences a significant drop in precipitation, recording only 31 mm (1.2 in) over just 5 days of rainfall. This marks a notable decline from the heavier rains of earlier months, particularly June, which boasts the highest precipitation at 258 mm (10.1 in). As the city transitions into winter, the sporadic showers in December contribute to a drier overall climate, contrasting sharply with the 17 days of rainfall seen in both March and April. The trend indicates that as the year wraps up, Nanjing's weather becomes more subdued, allowing residents to enjoy the crisp, cooler air with less disruption from rain.
In December, Nanjing experiences an average humidity of 70%, which marks a noticeable shift from the drier months of October and September, where humidity levels dipped to 56% and 62%, respectively. As the city transitions into winter, the humidity begins to stabilize, reflecting a pattern that follows the peak summer months of June, July, and August, when humidity soared to an uncomfortable 83% to 89%. By December, the air retains a moderate level of moisture, bridging the gap between the cooler months and the oppressive humidity of summer, hinting at a gentle, albeit noticeable, humidity trend typical of Nanjing’s seasonal changes.
In December, Nanjing experiences a UV Index of 7, categorized as high, which suggests a moderate risk of harm from unprotected sun exposure. This represents a decline from the intense UV levels seen from March to August, where the index reached an extreme peak of 13. Interestingly, the burn time in December increases to 25 minutes, allowing for a more leisurely outdoor experience compared to the rapid 10-minute burn times during the summer months. As winter sets in, residents can enjoy the clearer skies while still being mindful of sun safety. For more detailed information on the UV Index throughout the year, visit Nanjing UV Index.
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December wraps up the year in Nanjing with a delightful 244 hours of sunshine, a fitting conclusion to a month typically characterized by cooler temperatures. As autumn transitions into winter, December's number reflects a significant amount of sunlight, especially when compared to some of the sunniest months earlier in the year like July and August, both surpassing 300 hours. Interestingly, the overall trend reveals a consistent ebb and flow of sunlight, showcasing a peak during the summer months, while the year’s end retains a respectable amount of brightness. This balance of sun and shadow throughout the seasons makes Nanjing an enchanting place, where each month offers a unique atmospheric experience.
In Nanjing, China, the likelihood of sunny weather in December stands at 52%, making it a relatively pleasant month compared to the dreariness of the summer months where sunshine dips dramatically. Observing the trend throughout the year, we see a notable peak in January at 68%, followed by a gradual decline until a brief resurgence in November at 48%. December’s sunshine probability marks a slight rebound, hinting at the potential for bright days amidst the cold. This fluctuation highlights how the winter months can still surprise with glimmers of sunshine, contrasting sharply with the cloudier stretches observed from April through June, where sunniness drops to as low as 14%. So, while December may not guarantee a sun-soaked holiday, there's a fair chance for some cheerful rays to brighten the season!
As December rolls into Nanjing, the city experiences a return to shorter days, with daylight stretching for 10 hours. This month mirrors the lengths seen in both January and November, creating a triad of brief daylight as winter settles in. Observing the overall trend throughout the year, daylight duration peaks in May through July, where Nanjing basks in a generous 13 hours. The gradual decline from these summer highs begins in August, leading to a consistent decrease that culminates in the shorter days of late autumn and winter. This cyclical pattern underscores the rhythmic dance of seasons, where winter's darkness invites a moment of reflection amidst the bustling urban landscape.
As December settles in Nanjing, the average wind speed picks up slightly to 2.5 m/s (6 mph), a refreshing change that aligns with the month’s cooler climate. Throughout the year, trends reveal a gentle ebb and flow in wind speed, with January’s brisk start at 2.6 m/s gradually tapering to a low in September at just 1.5 m/s. As winter approaches, winds begin to regain momentum; October sees a notable increase to 2.9 m/s, followed by December’s consistent breeze. This subtle return to higher wind speeds signals a shift, inviting the crispness of winter air that many in the region eagerly anticipate, blending comfort with the invigorating energy of the season.
Weather in Nanjing varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Nanjing, focusing on differences in temperature, rainfall, humidity, and UV levels.
In December, temperatures in Nanjing range from a minimum of 0°C (32°F) to a maximum of 26°C (79°F), with an average of 11°C (52°F), and the month receives about 31 mm (1.2 in) of precipitation over approximately 5 days. The humidity level is relatively high at 70%. In contrast, January sees a slight drop in temperatures, with a minimum of -2°C (29°F) and an average of 10°C (50°F), while still reaching up to 26°C (78°F). Precipitation increases to 43 mm (1.7 in) over about 6 days, but the humidity decreases to 63%. For more detailed information, check out Nanjing weather in January.
December and February in Nanjing showcase notable differences in weather patterns despite having similar average temperatures. In December, the temperatures range from a minimum of 0°C (32°F) to a maximum of 26°C (79°F), with lower precipitation at 31 mm (1.2 in) over about five days. The humidity sits at 70%, contributing to a somewhat chilly feel. In contrast, February experiences a slight drop in minimum temperature to -2°C (29°F), but the maximum can reach 28°C (82°F). This month also sees significantly higher precipitation at 82 mm (3.2 in) across nine days, coupled with lower humidity at 66%. For detailed insights on February weather in Nanjing, you can visit Nanjing weather in February.
In December, the weather typically sees a minimum temperature of 0°C (32°F) and an average of 11°C (52°F), with a maximum reaching 26°C (79°F). This month experiences relatively low precipitation of 31 mm (1.2 in) over about 5 days, and the humidity averages around 70%. In contrast, March brings a noticeable shift, with minimum temperatures rising to 4°C (40°F) and an average of 16°C (61°F), peaking at 30°C (87°F). However, March is significantly wetter, accumulating 162 mm (6.4 in) of rain over 17 days, and humidity increases to 77%. For more detailed insights, you can check Nanjing weather in March.
In December, the weather is relatively mild with average temperatures ranging from a minimum of 0°C (32°F) to a maximum of 26°C (79°F), accompanied by low precipitation of 31 mm (1.2 in) over about 5 days and a humidity level of 70%. In contrast, April sees a significant shift, characterized by warmer temperatures with a minimum of 7°C (45°F) and a maximum of 31°C (88°F), though it experiences higher precipitation at 168 mm (6.6 in) over 17 days and slightly increased humidity at 73%. For more details about what to expect, you can check Nanjing weather in April.
December and May present distinctly different weather patterns. In December, temperatures range from a chilly 0°C (32°F) at night to a warm 26°C (79°F) during the day, with an average of 11°C (52°F). The month sees relatively low precipitation, totaling about 31 mm (1.2 in) over just 5 days, accompanied by a humidity level of 70%.
In contrast, May experiences much warmer conditions, with temperatures ranging from a minimum of 11°C (53°F) at night to a maximum of 34°C (94°F), averaging around 24°C (75°F). This month also brings significantly more rain, with approximately 171 mm (6.7 in) over 19 days and higher humidity at 85%. For more details on the weather in May, you can visit Nanjing weather in May.
December and June present strikingly different weather patterns. In December, temperatures range from a chilly minimum of 0°C (32°F) to a pleasant average of 11°C (52°F), reaching a maximum of 26°C (79°F). The month experiences relatively low precipitation of 31 mm (1.2 in) over just 5 days, with humidity around 70%. In contrast, June brings much warmer temperatures, with a minimum of 18°C (64°F) and an average of 26°C (79°F), peaking at a scorching 34°C (94°F). However, June is also characterized by significant rainfall, accumulating 258 mm (10.1 in) over 21 days, and higher humidity at 83%. For more detailed information on weather conditions in June, visit Nanjing weather in June.
In December, the weather is cooler, with temperatures ranging from a minimum of 0°C (32°F) to a maximum of 26°C (79°F), and an average of 11°C (52°F). The month sees relatively low precipitation, totaling 31 mm (1.2 in) over about 5 days, accompanied by a humidity level of 70%. In contrast, July experiences much warmer temperatures, with a minimum of 21°C (70°F) and a scorching maximum of 39°C (103°F), averaging at 28°C (83°F). Rainfall is significantly higher in July, accumulating to 98 mm (3.9 in) over 16 days, and the humidity peaks at 89%. For more details, you can check Nanjing weather in July.
In December, the weather is notably cooler, with temperatures ranging from a minimum of 0°C (32°F) to a maximum of 26°C (79°F), and an average of 11°C (52°F). It experiences relatively low precipitation of 31 mm (1.2 in) over about 5 days, along with a humidity level of 70%. In stark contrast, August presents a much warmer picture, with temperatures soaring between 22°C (71°F) and 37°C (100°F), averaging around 28°C (82°F). This month also sees significant rainfall, totaling 152 mm (6.0 in) over about 20 days and higher humidity at 88%. For more detailed insights into August weather, you can check Nanjing weather in August.
In December, the weather is significantly cooler compared to September, with temperatures ranging from a minimum of 0°C (32°F) to a maximum of 26°C (79°F), averaging around 11°C (52°F). Conversely, September experiences much warmer temperatures, with a minimum of 17°C (63°F) and peaking at 38°C (100°F), averaging 26°C (79°F). Precipitation levels also contrast sharply; December receives 31 mm (1.2 in) over just 5 days, while September sees a much wetter trend with 108 mm (4.3 in) across 15 days. Additionally, December has a higher humidity level at 70%, compared to September's 62%. For a detailed comparison, you can refer to Nanjing weather in September.
In comparing the weather of December and October, significant differences are evident. December experiences cooler temperatures, with a minimum of 0°C (32°F) and an average of 11°C (52°F), whereas October boasts a more comfortable climate with a minimum of 11°C (52°F) and an average of 21°C (70°F). Additionally, October can see peak temperatures soaring to a maximum of 36°C (96°F), contrasted with December's maximum of 26°C (79°F). Precipitation is also more pronounced in October, with 50 mm (2.0 in) over 6 days, compared to December's 31 mm (1.2 in) spread across 5 days. Furthermore, the humidity in October is lower at 56%, while December's humidity rises to 70%. For more insights, you can check Nanjing weather in October.
Comparing the weather between November and December reveals noticeable differences. In December, temperatures drop slightly, with a minimum of 0°C (32°F) and an average of 11°C (52°F), while November experiences milder conditions, ranging from a minimum of 5°C (42°F) to an average of 16°C (62°F). Rainfall also decreases in December, totaling 31 mm (1.2 in) over 5 days, compared to November's 45 mm (1.8 in) over 8 days. Additionally, December exhibits higher humidity levels at 70%, compared to November's 63%. For more specific details on November weather, you can visit Nanjing weather in November.
As December descends upon Nanjing, the weather takes on a distinct character compared to the warmer months. The temperatures drop, offering a refreshing coolness with an average of 11°C. While daytime can still see a maximum around 26°C, the nights can get quite chilly, dipping to 0°C. This month witnesses a moderate amount of rainfall, totaling around 31 mm over about 5 days, accompanied by a humidity level of 70% that adds a crispness to the air. Overall, December's climate marks a transition towards winter, inviting locals and visitors alike to embrace the season's rich atmosphere. For more details on what to expect throughout the year, visit Nanjing Climate.