Last updated: August 21, 2025
December in Jiangnan, China offers a diverse range of weather, balancing coolness and warmth. With temperatures ranging from a maximum of 29°C (84°F) to a minimum of 4°C (40°F), the month averages a comfortable 15°C (59°F). Visitors can expect 8 days of precipitation, totaling 48 mm (1.9 in), making for a moist yet invigorating atmosphere, complemented by a humidity level of 63%. Whether planning outdoor activities or exploring indoor cultural sites, December’s climate provides a unique backdrop for experiencing the charm of Jiangnan.
As December settles over Jiangnan, China, temperatures begin to exhibit a familiar winter chill. With a minimum of 4°C (40°F) and a maximum reaching around 29°C (84°F), the month acts as a bridge, transitioning from the mild autumn to the cooler winter months. The average temperature at 15°C (59°F) reflects this shift, offering a crisp air that is both invigorating and refreshing. Notably, December’s temperatures mirror the patterns seen in January, suggesting a steady decline in warmth as the year draws to a close. This month also heralds the onset of cooler evenings, inviting cozy gatherings and festive celebrations against this picturesque backdrop.
In December, Jiangnan experiences modest precipitation with an average of 48 mm (1.9 in), marking a slight increase from November's low of 40 mm (1.6 in). The rain typically spans about 8 days, providing a gentle transition into winter. This month’s precipitation is notably lighter than the summer peak, where June saw a significant 275 mm (10.8 in) across 23 days. The trend suggests a gradual tapering off of rainfall as the year concludes, typical of the region’s seasonal pattern, where summer storms give way to drier, cooler months. With December’s rain contributing to the overall annual total, it underscores the shift towards drier conditions while still adding a refreshing touch to the winter landscape.
As December arrives in Jiangnan, China, the humidity begins to settle at 63%, marking a slight dip from the heavier moisture of the summer months. Following the peak of 89% in July and consistently high levels throughout the sweltering season, December's humidity reflects the gradual transition towards cooler and drier winter conditions. Interestingly, while the humidity recedes from its summer highs, it remains higher than the early months of the year, showing a notable increase compared to January's 56%. This trend reveals the region's characteristic shift from a humid summer climate to a more balanced winter atmosphere, allowing for a refreshing end to the year.
In December, Jiangnan, China experiences a UV Index of 7, categorized as high and allowing for a relatively safe exposure time of 25 minutes before burning occurs. This marks a noticeable drop from the extreme levels seen in the summer months, where figures soared up to 13. Throughout the year, the UV Index has exhibited prominent peaks in March through August, coinciding with the sun's intensity at its highest, while the early winter months signal a shift toward lower UV levels. By December, the region enjoys a reprieve as residents can bask outdoors with reduced risk of harmful sun exposure. For more insights and specifics on the UV Index trends throughout the year, check out Jiangnan UV Index.
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In Jiangnan, China, the month of December enjoys a modest 228 hours of sunshine, marking a slight decline from the vibrant glow of earlier months. As the year transitions into winter, daylight hours decrease from the peak of 288 hours in May and 295 hours in July, which are among the sunniest months. The sunshine trend demonstrates a gradual dip, especially noticeable from the summer months onwards, yet December still offers more sun than the frigid depths of January with its mere 140 hours. Overall, while the winter light may pale compared to the summer's brilliance, Jiangnan retains a warmth and charm that makes December a delightful experience, filled with a steady glow to support the festive spirit.
In December, Jiangnan experiences a 47% chance of sunny weather, matching the optimism found in January. This month stands out as a time when the sun breaks through the winter gloom, aligning with earlier months like November, which offers a slightly lower 40% likelihood. Interestingly, while many spring and summer months such as June and August see significantly reduced chances of sunshine, December mirrors the clearer skies of its winter predecessor. This trend highlights a seasonal rhythm where clear days are just as likely to grace the region, providing a refreshing end to the year and inviting residents and visitors to bask in the winter sun.
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 settles over Jiangnan, a notable trend emerges in the region's wind patterns. With an average wind speed of 2.4 m/s (5 mph), the month brings a gentle breeze that whispers through the serene landscape, slightly softer than the preceding months. Following the peak in October at 3.3 m/s (7 mph), where winds danced more energetically, December's wind speed reflects a gradual pullback, trailing closely behind November's 2.6 m/s (6 mph). This calming shift cultivates a sense of tranquility, perfectly complementing the tranquil beauty of Jiangnan's winter scenery. As the year closes, the winds offer a reminder of nature's rhythmic ebb and flow, inviting introspection amid the delicate charm of the season.
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.
December and January exhibit similar temperatures, with both months featuring a minimum of around 4°C (39°F) and 4°C (40°F), respectively. However, December tends to be slightly warmer, averaging 15°C (59°F) compared to January's 14°C (58°F). The maximum temperatures also reflect this trend, peaking at 29°C (84°F) in December against 27°C (82°F) in January. Precipitation levels are relatively close, with December receiving 48 mm (1.9 in) across 8 days, while January sees 41 mm (1.6 in) over 7 days. Additionally, January experiences lower humidity at 56%, compared to December's 63%. For more detailed insights, check out Jiangnan weather in January.
In December, temperatures range from a minimum of 4°C (40°F) to a comfortable average of 15°C (59°F), peaking at a maximum of 29°C (84°F). The month sees about 48 mm (1.9 in) of precipitation over 8 days, coupled with a humidity level of 63%. Conversely, February offers similar temperature ranges, with a minimum of 4°C (40°F), an average of 15°C (60°F), and a slightly warmer maximum of 29°C (85°F). However, it experiences slightly increased precipitation of 60 mm (2.4 in) over the same number of rainy days, with humidity remaining comparable at 62%. For more detailed insights into weather conditions during this period, you can visit Jiangnan weather in February.
December and March present distinct climatic conditions. In December, temperatures range from a minimum of 4°C (40°F) to a maximum of 29°C (84°F), with an average of 15°C (59°F). The month has relatively low precipitation, with 48 mm (1.9 in) falling over 8 days, contributing to a humidity level of 63%. In contrast, March experiences milder nights and warmer days, with temperatures ranging from a minimum of 9°C (48°F) to a maximum of 31°C (89°F) and an average of 20°C (68°F). This month sees significantly more precipitation at 103 mm (4.1 in) over 18 days, while maintaining similar humidity levels at 62%. For more insights, you can check out this link: Jiangnan weather in March.
In December, temperatures in the area range from a mild minimum of 4°C (40°F) to a maximum of 29°C (84°F), with an average temperature of 15°C (59°F). This month sees around 48 mm (1.9 in) of precipitation over approximately 8 days, accompanied by a humidity level of 63%. In contrast, April experiences noticeably warmer weather, with minimum temperatures starting at 11°C (52°F) and reaching up to 36°C (97°F), averaging 23°C (73°F). However, April is also wetter, with 96 mm (3.8 in) of rainfall spread over 15 days, while humidity levels are slightly lower at 58%. For more details on the weather conditions in April, you can refer to Jiangnan weather in April.
December weather is generally milder, with temperatures ranging from a minimum of 4°C (40°F) to a maximum of 29°C (84°F), averaging around 15°C (59°F). The month sees relatively low precipitation, totaling 48 mm (1.9 in) over about 8 days, and humidity levels average 63%. In contrast, May experiences significantly warmer conditions, with minimum temperatures of 16°C (61°F) and highs reaching up to 36°C (98°F), averaging 26°C (80°F). This month is much wetter, receiving 175 mm (6.9 in) of rain over approximately 20 days, and humidity rises to 74%. For more details about the specific weather in this month, you can visit Jiangnan weather in May.
In December, the weather tends to be milder with temperatures ranging from a minimum of 4°C (40°F) to a maximum of 29°C (84°F), featuring an average of 15°C (59°F). The month experiences relatively low precipitation at 48 mm (1.9 in) over about 8 days and a humidity level of 63%. In contrast, June heats up significantly, with temperatures rising from a minimum of 20°C (68°F) to a sweltering maximum of 37°C (99°F), averaging 29°C (84°F). June also brings much more rainfall, totaling 275 mm (10.8 in) across approximately 23 days, along with higher humidity at 80%. This stark difference highlights the seasonal variations in climate, making December feel notably cooler and drier compared to the warm and wet conditions typical of June. For more detailed information, check Jiangnan weather in June.
December and July present strikingly different weather conditions. In December, temperatures range from a minimum of 4°C (40°F) to a maximum of 29°C (84°F), with an average of 15°C (59°F). The month experiences relatively low precipitation, totaling 48 mm (1.9 in) over 8 days, and humidity sits at a moderate 63%. In contrast, July brings significantly warmer temperatures, with a minimum of 24°C (75°F) and a maximum that can reach up to 38°C (100°F), averaging around 29°C (85°F). This month is characterized by high rainfall, accumulating 213 mm (8.4 in) over 23 days, and a much higher humidity level of 89%. For more detailed information, you can refer to Jiangnan weather in July.
In December, the weather is relatively mild, with temperatures ranging from a minimum of 4°C (40°F) to a maximum of 29°C (84°F), averaging around 15°C (59°F). It experiences lower humidity levels at 63% and less precipitation, totaling 48 mm (1.9 in) over just 8 days. In contrast, August brings significantly warmer conditions, with temperatures fluctuating between 24°C (75°F) and 37°C (99°F), averaging 29°C (84°F). The month is marked by high humidity at 88% and considerable rainfall, totaling 264 mm (10.4 in) across 25 days. For a more detailed look at the weather in this season, you can explore Jiangnan weather in August.
In December, the weather is milder with temperatures ranging from a minimum of 4°C (40°F) to a maximum of 29°C (84°F), featuring an average of 15°C (59°F). Precipitation levels are relatively low, at 48 mm (1.9 in) over just 8 days, with humidity averaging 63%. In contrast, September is significantly warmer, with temperatures ranging from 20°C (68°F) to a scorching maximum of 36°C (97°F), and an average of 28°C (82°F). However, September also brings much heavier rainfall, accumulating 170 mm (6.7 in) over 18 days, and a higher humidity level of 72%. For more detailed information, you can check out Jiangnan weather in September.
When comparing the weather in December and October, notable differences emerge. December typically experiences cooler temperatures, with a minimum of 4°C (40°F) and a maximum of 29°C (84°F), while October boasts warmer averages, ranging from a minimum of 15°C (59°F) to a maximum of 34°C (94°F). Additionally, October sees significantly more rainfall, with 117 mm (4.6 in) of precipitation over 13 days, compared to December's 48 mm (1.9 in) over just 8 days. Humidity levels remain relatively consistent between the two months, at 63% for December and 64% for October. For more detailed insights, you can explore Jiangnan weather in October.
In comparing the weather between November and December, December tends to be cooler with a minimum temperature of 4°C (40°F) compared to November's milder 9°C (49°F). The average temperature in December is also lower at 15°C (59°F), while November boasts a warmer average of 20°C (68°F). Both months experience similar maximum temperatures, peaking at 29°C (84°F) in December and 29°C (85°F) in November. Precipitation is slightly higher in December at 48 mm (1.9 in) over 8 days, compared to November's 40 mm (1.6 in) over 9 days, indicating a similar pattern of rainfall despite December having a bit more. Humidity is fairly comparable, with December at 63% and November at 61%. For a detailed look at November weather, you can visit Jiangnan weather in November.
December in Jiangnan brings a refreshing shift in weather as the year winds down. Temperatures drop noticeably, with cooler days becoming the norm, making average highs of 15°C feel quite mild compared to the warmer months. This month also sees an uptick in precipitation, typically bringing about eight rainy days, while humidity hovers around a comfortable 63%. As the landscape dons its winter attire, December invites a quieter rhythm, contrasting sharply with the vibrant energy of summer. For those interested in understanding how this month fits into the broader climate picture, visit Jiangnan Climate.