January Weather in Jiangnan, China

Last updated: August 21, 2025

Jiangnan, China, in January experiences a mild winter with temperatures ranging from a minimum of 4°C (39°F) to a maximum of 27°C (82°F), averaging around 14°C (58°F). The month brings about 41 mm (1.6 in) of precipitation over approximately 7 days, contributing to the area's 56% humidity. This combination of mild temperatures and moderate rainfall creates a unique climate that, while cooler, is still quite enjoyable for visitors and locals alike. Whether you're exploring the vibrant local culture or basking in the serene landscapes, January in Jiangnan offers a refreshing winter experience.

January Temperature in Jiangnan

In Jiangnan, China, January ushers in a refreshing chill, with temperatures ranging from a brisk 4°C (39°F) to a pleasant 27°C (82°F). The month typically averages around 14°C (58°F), creating a cool yet comfortable environment. As the season transitions into February, a gradual warming trend begins, with average temperatures rising to 15°C (60°F) and maximums reaching 29°C (85°F). This upward movement sets the stage for a steady increase into spring, where March experiences a notable jump to averages of 20°C (68°F). Overall, January's temperate climate not only invites a respite from the summer heat but also hints at the forthcoming warmth that characterizes the following months in this vibrant region.

January Weather in Jiangnan: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Jiangnan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Jiangnan, January typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec586068738083848382746859
Data source: Temperature data for Jiangnan generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in Jiangnan

In Jiangnan, China, January welcomes a relatively modest precipitation of 41 mm (about 1.6 in) over just 7 days. This sets the stage for a gradual increase in rainfall as the year progresses, with February seeing a rise to 60 mm and then surging to 103 mm in March. The region experiences a noteworthy shift in the rainy season, peaking dramatically in June with 275 mm over 23 days, and maintaining high totals through August. As autumn settles in, rainfall begins its slow retreat, dropping to 40 mm in November and 48 mm in December. This pattern highlights not only the chill of winter in January but also the significant leap to a humid and rainy summer, emblematic of Jiangnan’s dynamic climate.

January Precipitation Trends in Jiangnan

The chart displays monthly precipitation patterns in Jiangnan, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Jiangnan, January typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec4160103961752752132641701174048
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Jiangnan

In January, Jiangnan, China experiences a moderate humidity level of 56%, setting the stage for the month ahead. This figure marks the beginning of a gradual upward trend, as humidity increases steadily throughout the winter months. By February and March, humidity rises to 62%, signaling a transition toward the more humid spring season. As we move into April, a slight dip to 58% precedes the more pronounced increase during the warmer months. May ushers in significant humidity, reaching 74%, and this upward trajectory peaks in the summer, hitting a high of 89% by July. As summer wanes, humidity gradually decreases, yet remains relatively high, hovering around 72% in September and settling at 64% in October. The cycle continues as winter approaches, with November and December maintaining progressively stable humidity levels of 61% and 63%, respectively. This distinctive pattern illustrates how Jiangnan's climate shifts from a crisp winter atmosphere to a humid summer, affecting both environmental conditions and daily life.

January Average Humidity in Jiangnan

This chart illustrates the average monthly humidity levels in Jiangnan, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Jiangnan is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec56%62%62%58%74%80%89%88%72%64%61%63%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Jiangnan

In January, the UV Index in Jiangnan, China registers a notable 7, classifying exposure as high with a burn time of 25 minutes. This sets the stage for a gradual increase in UV intensity as the year progresses. By February, the index rises to 10, entering the very high category and reducing the burn time to just 15 minutes. The trend continues with March and April reaching an extreme level of 11 and maintaining this intensity through the warmer months. The peak is observed in May through August, where the UV Index remains at a striking 13, demanding vigilance with only 10 minutes of safe exposure. September and October see a slight dip to 11, while November returns to 8, marking a transition back to very high conditions. As the year closes, December echoes January's high category at 7, demonstrating a consistent annual pattern of increasing UV radiation during the spring and summer months. For more detailed insights, visit Jiangnan UV Index.

Maximum UV Index Levels in Jiangnan for January

The chart shows the monthly maximum UV Index (UVI) for Jiangnan in January, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In January, the maximum UV index in Jiangnan typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec710111113131313111187
Data source: Jiangnan January UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

January Sunshine in Jiangnan

In January, Jiangnan awakens to a subdued yet enchanting 140 hours of sunshine, providing a gentle introduction to the year. As winter transitions into spring, sunlight gradually increases, peaking in May with an impressive 288 hours—the epitome of warmth before the summer heat sets in. June and July continue this trend of sunny days, offering 279 and 295 hours respectively, making them the sunniest months. However, by the time autumn arrives in September, the hours of sunshine remain robust at 282, showcasing the region's sustained appeal. As the year closes, daylight diminishes, settling at 227 hours in November and 228 hours in December, reminding us of the captivating cycle of seasons in this picturesque landscape.

Monthly Sunshine Duration in Jiangnan: January Highlighted

The January sunshine duration represents the total number of hours Jiangnan experiences direct sunlight during the month of January, excluding cloudy or obstructed periods. This chart compares the sunshine duration of January with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec140h192h155h200h288h279h295h289h282h255h227h228h
Data source: Jiangnan January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Jiangnan During January

In Jiangnan, China, January offers a 47% chance of sunny weather, setting a promising tone for the winter month. This likelihood is slightly lower than February's 49%, indicating a gradual increase as winter gives way to early spring. Notably, sunshine tends to dwindle significantly from March onward, with the chance plunging to just 20% by March, before ticking up again in the later months, where May and June see a dip to 32% and a low of 16%, respectively. Interestingly, this pattern showcases a distinct seasonal shift, as the region experiences a resurgence in sunshine during the latter half of the year. Overall, January emerges as a relatively hopeful month for those seeking sunny days in Jiangnan, with its sunlit potential lingering as winter transitions towards spring.

Percentage of Sunny Days in January in Jiangnan

The chart illustrates the percentage of sunny days in Jiangnan throughout the year, with January highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Jiangnan experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec47%49%20%21%32%16%29%15%35%35%40%48%
Data source: Jiangnan January chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Jiangnan in January

In Jiangnan, China, January heralds the start of the year with 10 hours of daylight, a gentle reminder of winter's lingering presence. As February arrives, the days begin to lengthen, offering 11 hours of light, a sign of the approaching spring. This gradual increase continues through March and April, where daylight reaches 12 hours, creating a vibrant atmosphere as nature awakens. May brings even more sunlight with 13 hours, and the summer months of June and July maintain this brightness, allowing residents to fully savor longer days. As August rolls in, the daylight starts to wane slightly to 12 hours, followed by a dip to 11 hours in October and November. The cycle completes as December returns to 10 hours, wrapping up the year with the same gentle light that began it. Overall, this ebb and flow of daylight not only marks the changing seasons but also shapes the rhythm of life in Jiangnan.

Average Daylight Hours in Jiangnan for January

The chart illustrates the variation in daylight duration in Jiangnan throughout the year, with January highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 53m11h 22m12h 1m12h 40m13h 13m13h 29m13h 21m12h 52m12h 15m11h 35m11h 2m10h 44m
Data source: Jiangnan daylight hours, calculated by summing the hours between sunrise and sunset for each day.

January Winds in Jiangnan

In Jiangnan, China, the winds of January whisper at an average speed of 2.6 m/s (6 mph), setting the tone for a season marked by gentle breezes. As winter transitions into the budding warmth of spring, February's winds slightly decrease to 2.5 m/s, before picking up momentum in March with 3.0 m/s. The trend continues as April and June maintain a moderate pace, hovering around 2.8-2.9 m/s. Summer tends to bring a lull, with July recording the year's lowest average wind speed of 2.4 m/s, while August nudges back to the typical 2.5 m/s. Autumn reintroduces vigor with October's winds peaking at 3.3 m/s, before tapering off through November and December. This ebb and flow of wind speeds throughout the year in Jiangnan beautifully reflects the region's dynamic climate, where each season unveils its unique character.

Average January Wind Speed in Jiangnan

The chart displays monthly wind speed patterns in Jiangnan, with values for each month shown alongside January's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how January's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.6 m/s2.53.02.83.12.92.42.51.73.32.62.4
Data source: Jiangnan January wind data, generated using information from the Copernicus Climate Change Service.

How January Weather in Jiangnan Compares to Other Months

Weather in Jiangnan varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Jiangnan, focusing on differences in temperature, rainfall, humidity, and UV levels.

In January, the weather features a mild temperature range, with minimums around 4°C (39°F), averages of 14°C (58°F), and maximums reaching up to 27°C (82°F). Precipitation is moderate at 41 mm (1.6 in) over about 7 days, accompanied by a humidity level of 56%. In contrast, February sees a slight increase in temperature, with an average of 15°C (60°F) and maximums up to 29°C (85°F). However, it also experiences higher precipitation, totaling 60 mm (2.4 in) over 8 days, and humidity rises to 62%. For more details, you can check Jiangnan weather in February.

In January, the weather is characterized by mild temperatures, with a minimum of 4°C (39°F) and a maximum of 27°C (82°F), averaging around 14°C (58°F). The month sees relatively low precipitation, totaling 41 mm (1.6 in) over about 7 days, and the humidity averages 56%. In contrast, March experiences warmer conditions, 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 is also significantly wetter, with precipitation reaching 103 mm (4.1 in) over 18 days, while humidity increases slightly to 62%. This transitional increase in temperature and precipitation highlights the evolving weather patterns as winter gives way to spring. For more details on this transition, check out Jiangnan weather in March.

In January, the weather is relatively mild with average temperatures ranging from a minimum of 4°C (39°F) to a maximum of 27°C (82°F). The month experiences 41 mm (1.6 in) of precipitation over about 7 days, with humidity hovering around 56%. In contrast, April sees a significant increase in warmth, with average temperatures ranging from 11°C (52°F) at night to a scorching 36°C (97°F) during the day. Precipitation also rises to 96 mm (3.8 in) over 15 days, accompanied by slightly higher humidity at 58%. For more details on the conditions during this lively month, you can check Jiangnan weather in April.

When comparing the weather in January to that in May, it is evident that May is significantly warmer and more humid. In January, temperatures range from a minimum of 4°C (39°F) to a maximum of 27°C (82°F), with an average of 14°C (58°F), while May sees much higher temperatures, with lows of 16°C (61°F) and highs reaching up to 36°C (98°F) and an average of 26°C (80°F). Additionally, January experiences less precipitation at 41 mm (1.6 in) over 7 days, whereas May has considerably more rain, totaling 175 mm (6.9 in) over 20 days. The humidity levels also rise from 56% in January to 74% in May, contributing to a much muggier atmosphere. For more detailed information, you can explore the Jiangnan weather in May.

January and June display stark contrasts in weather conditions. In January, temperatures range from a mild 4°C (39°F) at night to a pleasant 27°C (82°F) during the day, with an average of 14°C (58°F). While precipitation is relatively low at 41 mm (1.6 in) over 7 days, the humidity sits at a comfortable 56%. In contrast, June experiences significantly warmer temperatures, with nighttime lows of 20°C (68°F) and daytime highs reaching an impressive 37°C (99°F), averaging around 29°C (84°F). However, June is marked by a substantial increase in rainfall, totaling 275 mm (10.8 in) across 23 days, accompanied by higher humidity levels at 80%. For more details on the weather in this month, visit Jiangnan weather in June.

January and July present stark contrasts in weather. In January, temperatures range from a chilly minimum of 4°C (39°F) to a pleasant average of 14°C (58°F), peaking at a warm 27°C (82°F). The month sees relatively low precipitation, totaling 41 mm (1.6 in) over just 7 days and with humidity sitting at a comfortable 56%.

In contrast, July experiences significantly warmer temperatures, with a minimum of 24°C (75°F), an average of 29°C (85°F), and soaring highs reaching up to 38°C (100°F). The rainy season sets in, bringing a substantial 213 mm (8.4 in) of precipitation spread over 23 days, accompanied by high humidity of 89%. This intense weather variation highlights the distinctiveness of each month, making January's mild climate a refreshing change from July's heat and humidity. For more detailed insights, visit Jiangnan weather in July.

In January, the weather is much cooler, with temperatures ranging from a minimum of 4°C (39°F) to a maximum of 27°C (82°F) and an average of 14°C (58°F). Precipitation is relatively low, at 41 mm (1.6 in) over about 7 days, accompanied by a humidity level of 56%. In contrast, August brings a dramatic shift, characterized by heat and humidity, with temperatures soaring from a minimum of 24°C (75°F) to a maximum of 37°C (99°F) and an average of 29°C (84°F). The month sees significantly higher rainfall, totaling 264 mm (10.4 in) across 25 days, resulting in a much higher humidity level of 88%. For more insights on August weather, check out Jiangnan weather in August.

January and September present stark contrasts in weather conditions. January experiences milder temperatures, with average daily highs around 14°C (58°F) and a maximum of 27°C (82°F). In contrast, September heats up significantly, with averages reaching 28°C (82°F) and peaks soaring to 36°C (97°F). The precipitation levels also differ greatly: January sees only 41 mm (1.6 in) across 7 days, while September is much wetter, with 170 mm (6.7 in) of rain falling over 18 days. Additionally, humidity rises from 56% in January to a sweltering 72% in September, making the latter month feel considerably more oppressive. For more detailed insights, check out Jiangnan weather in September.

January and October exhibit striking differences in weather patterns. In January, temperatures are relatively cooler, with a minimum of 4°C (39°F) and a maximum of 27°C (82°F), averaging around 14°C (58°F). The month sees about 41 mm (1.6 in) of precipitation over seven days, along with a humidity level of 56%. In contrast, October enjoys much warmer temperatures, with a minimum of 15°C (59°F), an average of 23°C (74°F), and a maximum reaching 34°C (94°F). This month also experiences more rainfall, totaling 117 mm (4.6 in) over 13 days, with humidity increasing to 64%. For more details about October weather, you can visit Jiangnan weather in October.

In January, the weather tends to be cooler, with average temperatures ranging from a minimum of 4°C (39°F) to a maximum of 27°C (82°F), while November enjoys a milder climate with temperatures between 9°C (49°F) and 29°C (85°F). Both months experience similar levels of precipitation, approximately 41 mm (1.6 in) in January and 40 mm (1.6 in) in November, although November often sees slightly more rainy days, with 9 days of precipitation compared to January's 7. Additionally, humidity levels are higher in November at 61%, compared to 56% in January. For a more detailed outlook, check out Jiangnan weather in November.

January and December exhibit relatively similar temperature ranges, with January's average temperature slightly lower at 14°C (58°F) compared to December's 15°C (59°F). Both months experience minimum temperatures around 4°C (39°F/40°F), while December boasts slightly higher maximum temperatures, reaching up to 29°C (84°F) compared to January's 27°C (82°F). Precipitation levels are also comparable, with January receiving 41 mm (1.6 in) over 7 days and December 48 mm (1.9 in) over 8 days, although December tends to be a bit more humid at 63% compared to January's 56%. For more detailed insights, you can check Jiangnan weather in December.

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Conclusion: What to Expect From January Weather in Jiangnan

In January, Jiangnan experiences a unique blend of winter chills and mild temperatures, setting it apart from the more humid and temperate months of spring and summer. With average lows around 4°C and highs reaching 27°C, this month provides a refreshing escape from the sweltering heat that dominates other seasons. Precipitation remains relatively low, with just a handful of rainy days, while the humidity level hovers around a comfortable 56%, offering a pleasant climate for outdoor activities. For a deeper dive into the seasonal dynamics of this region, explore the fascinating details in our Jiangnan Climate page.