Last updated: August 21, 2025
In December, Jiangnan, China, experiences a mild and refreshing climate characterized by an average temperature of 17°C (62°F), with daily highs reaching up to 29°C (84°F) and lows dipping to 7°C (44°F). The region sees light precipitation totaling about 17 mm (0.7 in) over the course of just 3 days, contributing to a humidity level of 69% that adds to the crispness of the air. This combination of temperatures and moisture creates a pleasant winter atmosphere, perfect for both outdoor activities and cozy indoor retreats.
In Jiangnan, China, December ushers in a noticeable shift as temperatures begin to cool, transitioning from the warmth of autumn. With minimums dropping to 7°C (44°F) and averages settling around 17°C (62°F), the climate is more refreshing, yet still mild compared to the chillier months ahead. Daytime highs can reach up to 29°C (84°F), offering pleasant afternoons that linger like autumn’s embrace. As the year draws to a close, the region sees less humidity than the summer months, creating a crisp yet comfortable atmosphere, ideal for enjoying festive activities. This trend towards cooler conditions epitomizes December's charm, making it a delightful time to experience the beauty of Jiangnan's winter landscape.
In December, Jiangnan, China, experiences a notable drop in precipitation, with only 17 mm (0.7 in) recorded over just 3 days. This significant decrease marks the transition from the wetter months of summer and autumn to the drier winter season. Comparatively, precipitation peaks in the warmer months, particularly in June and August, where totals soar to 315 mm (12.4 in) and 326 mm (12.8 in), respectively. As the year winds down, the overall trend indicates that December not only heralds the arrival of cooler weather but also a marked reduction in rainfall, setting the stage for the drier months ahead.
In December, Jiangnan experiences a slight dip in humidity at 69%, reflecting the transition from the damp, sultry summer months. As the year draws to a close, this moderate humidity level is a gentle reprieve from the peak of 88% seen in July and August. Interestingly, December's humidity remains higher than the 64% recorded in January and November, suggesting that while winter is settling in, the lingering effects of autumn still maintain a noticeable moisture in the air. This trend emphasizes the region's characteristic climate, oscillating between more humid and drier periods, ultimately creating a unique seasonal rhythm.
As December rolls into Jiangnan, the UV Index drops to a more manageable 7, classified as high, with a burn time of approximately 25 minutes. This seasonal decline contrasts sharply with the extreme levels seen from March through August, where a UV Index of 12 to 14 left residents and visitors with only 10 minutes of safe sun exposure. Interestingly, the trend reveals a gradual decrease in UV intensity as the year progresses, offering a welcome respite after months of heightened sun exposure, particularly from February to September. This shift encourages people to enjoy outdoor activities again, albeit with a mindful approach to sun safety. For detailed insights on UV levels throughout the year, visit Jiangnan UV Index.
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December in Jiangnan, China, boasts an impressive 263 hours of sunshine, contributing to a captivating end to the year. As winter settles in, daylight hours maintain a cozy feel, following the record high of 307 hours in July. A gradual decline is observed as the year transitions from the vibrant summer months, with sunshine hours dipping to 236 in March and April before a notable rebound in late spring. Interestingly, while December may seem dreary in other parts, Jiangnan’s sunlight lingers, with only a modest decrease from November’s 260 hours. This trend suggests a gentle embrace of winter illumination, setting a warm tone for the festive season and inviting residents and visitors alike to enjoy the beauty of Jiangnan’s end-of-year charm.
In December, the likelihood of sunny weather in Jiangnan, China, stands at 48%, a slight dip from the 62% observed in November. This seasonal transition hints at a gradual decline in sun-chasing opportunities as winter sets in. Interestingly, December offers a better chance of sunshine compared to the dreary summer months, where chances plummet to a mere 10% in June and hover around 14% in August. As the year wraps up, inhabitants of Jiangnan can anticipate moderately sunny days, making December an appealing time for outdoor activities before the colder months fully embrace the region.
As winter blankets Jiangnan, December brings a familiar return to shorter days, with daylight lasting just 10 hours. This decline in daylight follows a gradual ascent from January's 10 hours up to 13 hours in the lush months of May through July. After peaking in summer, daylight begins its subtle retreat, settling at 12 hours from August to September and gently waning again through the fall. November maintains this trend with another 11-hour stretch, before December's arrival signals a consistent pattern of diminishing light as the year draws to a close. This rhythmic ebb and flow of daylight encapsulates the region’s seasonal transformation, reflecting not only the passage of time but also the cyclical beauty of nature in Jiangnan.
As December descends upon Jiangnan, the winds pick up slightly with an average speed of 3.0 m/s (7 mph), an invigorating breath of fresh air compared to the more languid breezes of the summer months. After a gentle decline through the hotter months, reaching a low of 1.5 m/s (3 mph) in September, the wind gains momentum again in late autumn, culminating in a notable increase in October. This gradual rise from the summer lull not only invigorates the air but also reflects the shifting seasons, heralding the approach of winter. The winds in December embody the essence of change, bridging the warm nostalgia of the past months with the crispness that winter promises.
Weather in Jiangnan varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Jiangnan, focusing on differences in temperature, rainfall, humidity, and UV levels.
In December, the weather averages a comfortable 17°C (62°F) with temperatures ranging from a minimum of 7°C (44°F) to a maximum of 29°C (84°F). The month sees limited precipitation, with only 17 mm (0.7 in) spread over three days, and the humidity level is relatively high at 69%.
Conversely, January brings slightly cooler temperatures, averaging 16°C (61°F), with a minimum of 3°C (38°F) and a slightly lower maximum of 28°C (83°F). Precipitation increases slightly to 21 mm (0.8 in), also over three days, while humidity drops to 64%. For more detailed insights on the weather in January, you can visit Jiangnan weather in January.
In December, the weather features a comfortable range of temperatures with a minimum of 7°C (44°F) and a maximum of 29°C (84°F), averaging at 17°C (62°F). This month experiences relatively low precipitation, totaling 17 mm (0.7 in) over just 3 days, and humidity levels hover around 69%. In contrast, February showcases a cooler minimum temperature of 4°C (40°F), while maintaining the same average and maximum temperatures as December. However, February sees significantly more rainfall, with a total of 56 mm (2.2 in) over 8 days, and a slight decrease in humidity to 68%. For more insights on the weather patterns in February, you can visit Jiangnan weather in February.
In December, the weather is relatively mild, with temperatures ranging from a minimum of 7°C (44°F) to a maximum of 29°C (84°F) and an average of 17°C (62°F). The month sees limited rainfall, with only 17 mm (0.7 in) spread over just 3 days, resulting in a humidity level of 69%. In contrast, March experiences warmer temperatures, with a minimum of 9°C (48°F) and a maximum of 32°C (90°F), averaging 21°C (70°F). However, it is also much wetter, receiving 82 mm (3.2 in) of rain over 15 days and exhibiting a slightly higher humidity of 73%. For more details on the specific weather conditions, you can refer to Jiangnan weather in March.
In December, the weather is generally milder, with temperatures ranging from a minimum of 7°C (44°F) to a maximum of 29°C (84°F) and an average of 17°C (62°F). The month experiences relatively low precipitation, with only 17 mm (0.7 in) over about three days, and humidity levels around 69%. In contrast, April brings warmer temperatures, with a minimum of 11°C (53°F) and a maximum of 33°C (92°F), averaging 23°C (74°F). The rainfall significantly increases during April, totaling 127 mm (5.0 in) over approximately 14 days, and humidity rises slightly to 71%. This shift from the dry and mild December to the warmer and wetter April is notable. For more details about the weather conditions in Jiangnan during April, check out Jiangnan weather in April.
When comparing the weather in December and May, notable differences become apparent. December experiences milder temperatures with a minimum of 7°C (44°F) and an average of 17°C (62°F), while May boasts warmer conditions, starting at a minimum of 15°C (59°F) and averaging 27°C (80°F), reaching as high as 35°C (96°F). Rainfall is significantly higher in May, with 216 mm (8.5 in) of precipitation spread over 20 days, compared to December's 17 mm (0.7 in) on just 3 days. Additionally, the humidity increases from 69% in December to 79% in May, contributing to a more muggy atmosphere during the latter month. For a more detailed look at the weather during this season, visit Jiangnan weather in May.
December and June present a stark contrast in weather patterns. In December, temperatures range from a mild 7°C (44°F) at night to a warm average of 17°C (62°F) during the day, peaking at a high of 29°C (84°F). Precipitation is relatively low, totaling just 17 mm (0.7 in) over 3 days, with humidity around 69%. In contrast, June brings much warmer conditions, with nighttime lows of 23°C (74°F) and daytime highs averaging 29°C (84°F), soaring up to 35°C (96°F). Rainfall dramatically increases in June, reaching 315 mm (12.4 in) across 22 days, and humidity rises to 77%. For more detailed information, you can check out Jiangnan weather in June.
December and July present distinctly different weather patterns. In December, temperatures range from a comfortable minimum of 7°C (44°F) to a maximum of 29°C (84°F), with an average of 17°C (62°F). The month experiences modest precipitation, totaling 17 mm (0.7 in) over just 3 days, and humidity levels hover around 69%. In contrast, July is significantly warmer, with temperatures ranging from a minimum of 25°C (77°F) to a sweltering maximum of 37°C (98°F) and an average of 29°C (85°F). This month is much wetter, receiving 222 mm (8.7 in) of rainfall across 23 days, and humidity climbs to a high of 88%. For a detailed look into July's weather, you can check Jiangnan weather in July.
In December, the weather is significantly cooler, with temperatures ranging from a minimum of 7°C (44°F) to a maximum of 29°C (84°F), and an average of 17°C (62°F). The month sees low precipitation, only 17 mm (0.7 in) over about 3 days, accompanied by a humidity level of 69%. In contrast, August brings much warmer conditions, with temperatures soaring from a minimum of 24°C (76°F) to a maximum of 37°C (100°F), averaging around 29°C (84°F). This month is also characterized by heavy rainfall, with 326 mm (12.8 in) spread across approximately 25 days, resulting in a higher humidity level of 88%. For more detailed weather information, you can check Jiangnan weather in August.
When comparing the weather of December and September, notable differences emerge. December experiences milder temperatures, with a minimum of 7°C (44°F) and an average of 17°C (62°F), peaking at 29°C (84°F). In contrast, September offers much warmer conditions, with minimum temperatures around 21°C (70°F), an average of 28°C (83°F), and maximums reaching 35°C (95°F). Precipitation also varies significantly; December receives only 17 mm (0.7 in) over 3 days, whereas September sees a substantial 233 mm (9.2 in) spread across 23 days. The humidity is slightly higher in September at 75% compared to 69% in December. For more detailed insights into September's weather, visit Jiangnan weather in September.
In comparing the weather between December and October, we see notable differences in temperature and precipitation. December experiences milder temperatures, with a minimum of 7°C (44°F) and a maximum of 29°C (84°F), leading to an average of 17°C (62°F). In contrast, October is warmer, with temperatures ranging from a minimum of 15°C (60°F) to a maximum of 35°C (95°F), yielding a higher average of 25°C (77°F). Precipitation also varies significantly; December receives only 17 mm (0.7 in) over three days, whereas October has a much wetter climate, accumulating 143 mm (5.6 in) of rain over twelve days. Interestingly, while December boasts a higher humidity of 69%, October is slightly lower at 65%. For a more detailed look at October's weather, you can visit Jiangnan weather in October.
In comparing the weather of December and November, December tends to be cooler with an average temperature of 17°C (62°F), while November's average is slightly warmer at 21°C (70°F). The minimum temperature in December is 7°C (44°F), significantly lower than November's minimum of 12°C (54°F). Precipitation in December is less frequent, occurring over just 3 days with a total of 17 mm (0.7 in), compared to November, which sees rainfall on 5 days totaling 27 mm (1.1 in). Additionally, December has a higher humidity level at 69%, while November maintains a slightly drier atmosphere at 64%. For more detailed information, you can refer to Jiangnan weather in November.
As December unfolds in Jiangnan, the weather transitions into a cooler phase, offering a refreshing escape from the heat of the preceding months. With average temperatures settling at a comfortable 17°C (62°F) and only a handful of rainy days, this month stands out as a delightful time for outdoor exploration. The humidity remains relatively high, creating a unique atmosphere that adds to the charm of the season. While fleeting warmth may still linger during the day, the cool evenings remind us that winter is on the horizon. For a more comprehensive overview of the area's weather patterns, visit Jiangnan Climate.