Last updated: August 21, 2025
In December, Chengdu experiences a cool and humid climate, with average temperatures hovering around 7°C (46°F). The maximum can reach a mild 17°C (63°F), while the minimum dips to a chilly -2°C (29°F), offering a striking contrast throughout the month. This period sees about 11 mm (0.4 in) of precipitation over approximately 3 days, contributing to a high humidity rate of 90% that envelops the city. As the year draws to a close, residents and visitors alike can expect a blend of crisp air and occasional drizzle, setting the stage for a unique seasonal experience in this vibrant city.
As December rolls into Chengdu, temperatures reflect the crisp embrace of winter, with a minimum dropping to -2°C (29°F) and an average hovering at a chilly 7°C (46°F). This marks a subtle transition from the milder autumn temperatures seen in November, where the average was 13°C (55°F). Despite the dip, highs can still reach a pleasant 17°C (63°F), hinting at a touch of warmth amid the winter chill. Observing the month-on-month trend, December showcases the city's characteristic balance of coolness, paving the way for festive gatherings while inviting cozy experiences. As the months progress, we see a gradual rise leading into spring, with temperatures dramatically increasing by March, reflecting Chengdu’s vibrant climate changes throughout the year.
In December, Chengdu, China experiences a notable decrease in precipitation, receiving only 11 mm (0.4 in) of rainfall over three days. This marks a continuation of the downward trend seen since the heavy rainfall of July and August, where precipitation peaked at 312 mm (12.3 in) and 409 mm (16.1 in)**, respectively. As the year winds down, December's precipitation figures reflect a shift into drier conditions, similar to those observed in January, where only 5 mm of rain falls. This transitional phase highlights Chengdu's climate variability, moving from the monsoon season into a more subdued winter pattern, as the city braces for cooler temperatures and less frequent rain.
In Chengdu, China, December brings a notable humidity level of 90%, which is a slight dip from the consistently high figures seen in the previous months, specifically from August to November when humidity peaked at 92%. The year kicks off with high humidity as well, starting at 90% in January and reaching 92% in February, creating a pattern of elevated moisture in the air throughout the winter months. As the seasons change, humidity generally begins to decrease, reaching its lowest at 85% in April before creeping back up again from May through July. This overarching trend showcases Chengdu's characteristic dampness, offering a glimpse into the city's muggy climate, particularly prominent during the summer and early autumn.
As December settles in Chengdu, the UV Index drops to 4, placing it in the moderate exposure category, which allows for a longer burn time of 30 minutes. This decline in UV radiation marks a significant shift from the extreme levels seen in the summer months, highlighting a trend of decreasing UV intensity as the year concludes. The transition from May’s peak of 12 to the holiday season reflects the city's shift towards cooler weather and reduced sunlight. For those looking to enjoy the outdoors during this mild month, it's a wonderful opportunity to bask in the sunshine while being mindful of skin protection. For more detailed information on UV levels throughout the year, visit Chengdu UV Index.
UV Risk Categories
As December rolls into Chengdu, the city begins to experience a gentle transition from the vibrant summer sunshine, peaking in July and August with an impressive 290 hours of sunlight, to the more subdued but still pleasant light of winter. With 209 hours of sunshine, December marks a noticeable dip from the warmer months, yet it holds a charm of its own. The days grow shorter, but the glow of the winter sun persists, leading to a cozy atmosphere as people savor the crisp air. Interestingly, following a steady climb in sunshine hours from January's 188 hours, the month of December maintains relatively favorable sunlight compared to the previous months of fall, such as October and November. Thus, while Chengdu awaits the promise of spring, December still offers a delightful dose of sunshine, inviting residents and visitors alike to enjoy the milder winter days.
As December rolls into Chengdu, China, the prospects for sunny weather show a promising uptick, with a 40% chance of sunshine. This is a slight increase from the 36% likelihood in November, suggesting that while winter settles in, the sun occasionally makes an appearance. However, looking at the broader trends from the year, one can observe a general decline in sunny days from the spring to late summer, with April and May seeing the lowest chances. Interestingly, the likelihood of sunshine peaks in January, dipping again as winter progresses. Overall, December offers a relatively hopeful prospect for sun-seekers, making it a noteworthy time to visit this vibrant city.
As December settles in Chengdu, the city experiences a return to shorter days, with daylight lasting only 10 hours. This month marks the beginning of winter, characterized by a steady decline in daylight from the longer, sun-soaked days of summer. Starting with 14 hours in June, the daylight duration gradually decreased, hitting its lowest point in December before the cycle begins anew. Interestingly, the transition reflects a rhythmic dance of daylight throughout the year; as the days grew longer from 10 hours in January to a peak of 13 hours during May to July, the subsequent months saw a reverse trend. November’s daylight mirrored that of January, both offering just 10 hours, creating a sense of continuity as Chengdu welcomes the serene embrace of winter.
As December settles over Chengdu, the winds whisper a gentle breeze, averaging a modest 1.7 m/s (4 mph). This slight uptick from the quieter months of November and October hints at a subtle seasonal shift, with the city's wind patterns subtly reflecting the change of year. Throughout the year, wind speeds consistently hovered around 4 mph, showing a remarkable stability, while a gradual decline in the summer months gave way to slightly stronger gusts as winter approaches. December's refreshing air offers a perfect contrast to the coolness of the season, inviting residents and visitors alike to embrace the festive atmosphere with a hint of crispness in the air.
Weather in Chengdu varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Chengdu, focusing on differences in temperature, rainfall, humidity, and UV levels.
In December, the weather tends to be milder, with temperatures ranging from a minimum of -2°C (29°F) to a maximum of 17°C (63°F) and an average of 7°C (46°F). The month experiences more precipitation, totaling 11 mm (0.4 in) across three days, while humidity remains high at 90%.
In contrast, January is slightly colder, featuring temperatures that dip to a minimum of -4°C (25°F) and a maximum of 16°C (62°F), with the average temperature also dropping to 7°C (44°F). Precipitation decreases significantly to just 5 mm (0.2 in) over one day, yet the humidity continues to hover around 90%. For more insights about the weather conditions in January, visit Chengdu weather in January.
December and February in Chengdu exhibit notable differences in weather patterns. December typically sees temperatures ranging from a minimum of -2°C (29°F) to a mild maximum of 17°C (63°F), with an average temperature of 7°C (46°F). The month experiences about 11 mm (0.4 in) of precipitation over three days, with humidity levels around 90%. In contrast, February presents slightly warmer conditions, with temperatures starting at a minimum of -1°C (31°F) and reaching up to 24°C (76°F), resulting in an average of 9°C (48°F). Precipitation drops slightly to 10 mm (0.4 in) over just two days, and humidity remains high at 92%. For more specific details on February weather in Chengdu, you can visit Chengdu weather in February.
In December, the weather is notably cooler with temperatures ranging from a minimum of -2°C (29°F) to a maximum of 17°C (63°F), averaging around 7°C (46°F). The month experiences relatively low precipitation at 11 mm (0.4 in) over about 3 days, alongside a high humidity level of 90%. In contrast, March brings a significant shift in climate, with temperatures increasing to a minimum of 4°C (40°F) and reaching a maximum of 30°C (86°F), averaging 15°C (59°F). This month sees more precipitation at 23 mm (0.9 in) across 6 days, while humidity remains quite consistent at 89%. For more detailed information on March weather, you can check Chengdu weather in March.
The weather in December is notably cooler, with temperatures ranging from a chilly minimum of -2°C (29°F) to a mild maximum of 17°C (63°F), averaging around 7°C (46°F). The month also experiences relatively low precipitation at 11 mm (0.4 in) over just three days, along with high humidity at 90%. In contrast, April brings significantly warmer temperatures, with a minimum of 9°C (49°F) and soaring highs that can reach up to 36°C (98°F), averaging 19°C (66°F). However, April is wetter, receiving 58 mm (2.3 in) of rain over about ten days, while maintaining a slightly lower humidity level at 85%. For more detailed information, you can check Chengdu weather in April.
December and May showcase strikingly different weather patterns. In December, temperatures range from a chilly minimum of -2°C (29°F) to a comfortable maximum of 17°C (63°F), with an average of 7°C (46°F), and the month sees only light precipitation totaling 11 mm (0.4 in) over just three days, accompanied by high humidity at 90%. In contrast, May presents a much warmer climate, with temperatures soaring from a minimum of 12°C (54°F) to a maximum of 38°C (100°F), averaging 22°C (73°F). This month experiences significantly more rainfall, accumulating 74 mm (2.9 in) over 11 days, paired with slightly lower humidity at 87%. For a closer look at what to expect during this pleasant month, visit Chengdu weather in May.
December and June present strikingly contrasting weather conditions. In December, temperatures range from a chilly minimum of -2°C (29°F) to a comfortable maximum of 17°C (63°F), with an average of 7°C (46°F). The month experiences low precipitation of only 11 mm (0.4 in) over three days, coupled with high humidity at 90%. In stark contrast, June brings warmer weather, with temperatures soaring from a minimum of 17°C (63°F) to a maximum of 36°C (97°F), and an average temperature of 25°C (78°F). However, June is much wetter, with rainfall totaling 89 mm (3.5 in) across nine days, while humidity remains relatively high at 88%. For more detailed insights, you can explore Chengdu weather in June.
December and July in Chengdu showcase stark contrasts in weather. December experiences cooler temperatures, with a minimum reaching -2°C (29°F) and an average of 7°C (46°F), while July boasts a much warmer climate, with lows of 19°C (66°F) and an average of 27°C (80°F). In terms of precipitation, December is relatively dry, receiving only 11 mm (0.4 in) over about 3 days, compared to July's significant rainfall of 312 mm (12.3 in) spread over 22 days. Despite the slight difference in humidity levels—December at 90% and July at 89%—July's heat and rainfall create a notably different feel. For more details on July weather, you can visit Chengdu weather in July.
December and August present starkly contrasting weather conditions. In December, temperatures range from a chilly -2°C (29°F) at night to a mild 17°C (63°F) during the day, complemented by low precipitation of just 11 mm over about three days. The humidity sits at a high 90%, creating a crisp and damp atmosphere. In contrast, August brings sweltering heat, with temperatures soaring from a minimum of 18°C (64°F) to a blistering maximum of 40°C (104°F). Rainfall is significant in August, totaling 409 mm (16.1 in) over 21 rainy days, and the humidity remains high at 92%, contributing to a stifling environment. For more detailed insights, refer to Chengdu weather in August.
In December, temperatures in Chengdu are much cooler, with a minimum of -2°C (29°F) and an average of 7°C (46°F), reaching a maximum of 17°C (63°F). The month sees relatively low precipitation at 11 mm (0.4 in) over just three days, along with high humidity levels at 90%. In contrast, September experiences warm weather, with temperatures ranging from a minimum of 14°C (57°F) to a maximum of 35°C (95°F) and an average of 22°C (73°F). Rainfall is significantly higher in September, measuring 118 mm (4.6 in) over 14 days, and the humidity is slightly elevated at 92%. For more detailed information, you can check Chengdu weather in September.
When comparing the weather in December to October, it's clear that December is notably colder, with average temperatures ranging from a minimum of -2°C (29°F) to a maximum of 17°C (63°F). In contrast, October offers much warmer conditions, featuring temperatures that span from a minimum of 10°C (51°F) to a maximum of 30°C (86°F). Additionally, October experiences significantly more rainfall, with 57 mm (2.3 in) spread over about 10 days, compared to December's 11 mm (0.4 in) over just 3 days. Humidity remains relatively high in both months, at 90% in December and 92% in October. For more detailed insights on the weather, you can check Chengdu weather in October.
In comparing the weather of December and November, December tends to be cooler with average temperatures ranging from a minimum of -2°C (29°F) to a maximum of 17°C (63°F), while November has warmer averages from a minimum of 3°C (38°F) to a maximum of 24°C (75°F). Additionally, December experiences less rainfall, totaling 11 mm (0.4 in) over 3 days, compared to November's 15 mm (0.6 in) over 4 days. Humidity levels are relatively similar, with December at 90% and November slightly higher at 92%. For more details on November weather, you can check Chengdu weather in November.
As December settles into Chengdu, the city experiences a notable shift in its climate. With temperatures dipping to a chilly average of 7°C and occasional lows that can flirt with freezing, this month stands out as a period of coolness compared to the milder conditions of earlier months. The high humidity levels make the cold feel even more pronounced, while the minimal precipitation—spanning just a few days—offers a brief respite from the typical rainy season. If you're planning a visit, be prepared for layers and enjoy the crisp air! For more insights on what to expect throughout the year, check out Chengdu Climate.