January Weather in Jiangnan, China

Last updated: August 21, 2025

January in Jiangnan, China showcases a diverse climate profile, with maximum temperatures reaching 17°C (63°F) and an average of 8°C (47°F). This month often experiences chilly spells, as minimum temperatures can drop to -2°C (30°F), blending a touch of winter into the region's otherwise temperate environment. Despite the cool temperatures, the area sees approximately 30 mm (1.2 in) of precipitation over 8 days, contributing to a relative humidity of 72%. Gentle rains can be expected, making January a month where the serene beauty of Jiangnan is accentuated by its cool, fog-laden atmosphere.

January Temperature in Jiangnan

In January, the climate in Jiangnan, China, presents a crisp and cool atmosphere, with temperatures ranging from a brisk -2°C (30°F) as a minimum to a pleasant 17°C (63°F) at its peak. The average temperature hovers around 8°C (47°F), marking a stark contrast to the warmer months that follow. As February approaches, a gradual warming begins, with minimum temperatures shifting to 1°C (34°F) and an average rise to 10°C (50°F). This upward trend continues into March, where temperatures can soar to a maximum of 32°C (90°F), suggesting a swift transition from winter chill to spring warmth. This pattern demonstrates Jiangnan’s dynamic climate, where cold beginnings evolve into much warmer days, inviting the region to bloom just as spring approaches.

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).
JanFebMarAprMayJunJulAugSepOctNovDec465059667177838475655648
Data source: Temperature data for Jiangnan generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in Jiangnan

In Jiangnan, China, January marks the beginning of the year with relatively low precipitation, totaling just 30 mm (1.2 in) over approximately 8 days of rain. This initial dryness paves the way for progressively wetter months ahead, as February sees a noticeable increase to 47 mm (1.9 in). By March, the region experiences a dramatic shift, with rainfall reaching 101 mm (4.0 in), suggesting a clear trend towards the lush, vibrant energy of spring. As the months roll on, precipitation continues to rise, peaking in May at 186 mm (7.3 in) before gradually settling into consistent rainfall through the summer and autumn months. This pattern highlights Jiangnan’s distinct seasonal transitions, transitioning from the dry chill of winter to the verdant abundance of the warmer seasons.

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.
JanFebMarAprMayJunJulAugSepOctNovDec30471011391861511841381791186029
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Jiangnan

In Jiangnan, China, January ushers in a humidity level of 72%, setting the stage for a gradual climb in moisture throughout the year. By February, the humidity rises to 76%, and the trend continues, reaching 80% by March. This upward trajectory peaks in the summer months, with both July and August showcasing a remarkable 85% and 87%, respectively. As autumn arrives, humidity slightly declines but remains elevated, hovering around 84% in September and 81% by October. The year closes with November and December seeing 86% and 81%, emphasizing the region's distinctively humid climate. Overall, Jiangnan's January marks the inception of a steadily increasing humidity pattern, revealing a lush and vibrant ecosystem.

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.
JanFebMarAprMayJunJulAugSepOctNovDec72%76%80%77%82%85%85%87%84%81%86%81%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Jiangnan

In January, Jiangnan, China, experiences a moderate UV Index of 5, with a burn time of approximately 30 minutes—offering a gentle reminder that while the winter sun is less intense, care should still be taken. As the year progresses into February, the UV Index rises to 6, entering the high exposure category, where sunscreen and protective clothing become more essential with a reduced burn time of 25 minutes. The trend continues sharply upwards into March and April, with indices reaching 8 and 10, indicating very high exposure, resulting in a mere 15 minutes before the sun’s rays can cause harm. The peak arrives in the summer months, where May through August record an extreme UV Index of 11 to 12, demanding vigilance and protective measures with a mere 10 minutes of safe sun exposure. Remarkably, September and October see a slight decline to 9, indicating very high exposure again, followed by a drop in November and December back to more moderate levels of 6 and 4, respectively. The fluctuating UV Index throughout the year in Jiangnan highlights the importance of adapting sun safety practices seasonally. For detailed insights on the UV levels throughout the year, 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.
JanFebMarAprMayJunJulAugSepOctNovDec56810111112129964
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 Jiangnan, China, January brings a modest 107 hours of sunshine, heralding the year's quiet start. As the winter chill begins to thaw, February sees a notable increase to 155 hours, hinting at the imminent arrival of spring. By March, sunshine continues to rise dramatically to 191 hours, paving the way for longer, warmer days. The vibrant bloom of April greets 210 hours of sunlight, while May sees a delightful surge to 243 hours, enticing nature lovers outdoors. The summer months shine brightest, with June basking in 251 hours and July peaking at an impressive 298 hours. As the heat mellows in August, sunshine remains generous with 313 hours. The fall months transition into cooler days, as September offers 217 hours, followed by October's 141 hours and November's 148 hours, before December gently closes the year with 122 hours of sun. This rhythmic ebb and flow of sunshine not only marks the seasonal changes but also paints a vivid picture of Jiangnan's enchanting climate throughout the year.

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.
JanFebMarAprMayJunJulAugSepOctNovDec107h155h191h210h243h251h298h313h217h141h148h122h
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 notable 31% chance of sunny weather, making it one of the brighter months of the year alongside July. This trend of higher sunlight is contrasted by the striking decrease in sunny days as winter progresses into early spring, with February following closely at 30% but then dipping to 26% in March. Interestingly, the early months show a resilient glimpse of sunshine, while April through June are marked by a significant plunge in sunny days, dropping to a mere 14% by June. The weather outlook does improve slightly in the fall, with September boasting the highest chance of sun at 36%. Overall, while January offers a decent chance of bright days, the fluctuations throughout the year highlight Jiangnan's varied and often overcast climate.

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.
JanFebMarAprMayJunJulAugSepOctNovDec31%30%26%15%18%14%31%25%37%20%24%24%
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, the length of daylight transitions from 10 hours in January to a peak of 14 hours in June, reflecting the gradual shift towards summer. As winter fades, February and March enjoy an increase to 11 hours, signaling the early arrival of spring. The days continue to lengthen, reaching their zenith in May before beginning a slow retreat. From July onward, daylight slips to 13 hours and gradually diminishes to 10 hours by December, marking the return to winter. This cyclical pattern highlights the region's seasonal rhythm, where each month contributes to a dynamic dance of light that enhances the natural beauty of 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 27m11h 7m11h 59m12h 53m13h 37m14h13h 48m13h 9m12h 18m11h 25m10h 39m10h 15m
Data source: Jiangnan daylight hours, calculated by summing the hours between sunrise and sunset for each day.

January Winds in Jiangnan

In January, Jiangnan experiences a gentle breeze with an average wind speed of 1.4 m/s (3 mph). Throughout the winter months, wind conditions remain relatively calm, with February and December slightly edging up to 1.5 m/s. As spring unfurls, March sees a modest increase to 1.6 m/s. This subtle yet noticeable rise in winds hints at the approach of warmer temperatures. However, by the height of summer in July, the winds soften back to 1.3 m/s, marking a trend of tranquility during the heat. Interestingly, September exhibits the most considerable gusts at 1.9 m/s, signaling a transition toward autumn, before settling back to 1.5 m/s in October. Overall, while January's chill is met with a serene calm, the seasonal fluctuations remind us of the dynamic nature of Jiangnan's climate.

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.
JanFebMarAprMayJunJulAugSepOctNovDec1.4 m/s1.51.61.51.41.51.31.51.91.51.31.3
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.

January weather typically sees cooler temperatures, with an average around 8°C (47°F) and highs reaching up to 17°C (63°F). Precipitation is relatively low at 30 mm (1.2 in) over about 8 days, coupled with a humidity level of 72%. In contrast, February experiences slightly milder temperatures, as the average rises to 10°C (50°F) and maximums can reach as high as 25°C (78°F). However, it brings increased rainfall, totaling 47 mm (1.9 in) over 9 days, and a slight increase in humidity to 76%. For more detailed insights on February weather, visit Jiangnan weather in February.

In comparing the weather in January and March, January typically features cooler temperatures with a minimum of -2°C (30°F) and an average of 8°C (47°F), peaking at 17°C (63°F). It experiences relatively low precipitation, totaling 30 mm (1.2 inches) over about 8 days, along with a humidity level of 72%. In contrast, March sees a noticeable warming trend, with temperatures ranging from a minimum of 6°C (42°F) to a maximum of 32°C (90°F), and an average of 15°C (59°F). However, it also brings increased rainfall, with 101 mm (4.0 inches) of precipitation spread over 15 days and higher humidity at 80%. For more detailed information about weather patterns, you can check Jiangnan weather in March.

In January, the weather is quite cool, with temperatures ranging from a minimum of -2°C (30°F) to a maximum of 17°C (63°F), and an average temperature of around 8°C (47°F). The month experiences relatively low precipitation, with about 30 mm (1.2 in) occurring over 8 days, while humidity levels stand at 72%.

In contrast, April sees a significant warming trend, with minimum temperatures rising to 8°C (46°F) and maximums reaching 34°C (94°F), averaging 19°C (66°F). This month experiences more rainfall, totaling 139 mm (5.5 in) over approximately 14 days, and humidity increases slightly to 77%. For more detailed insights into April's weather, you can visit Jiangnan weather in April.

January weather in Jiangnan is characterized by cooler temperatures, with a minimum of -2°C (30°F) and an average of 8°C (47°F), peaking at a maximum of 17°C (63°F). This month experiences relatively low precipitation, totaling 30 mm (1.2 in) over about 8 days, and has a moderate humidity level of 72%. In contrast, May brings significantly warmer conditions, with temperatures ranging from a minimum of 12°C (54°F) to a scorching maximum of 36°C (97°F) and an average of 22°C (71°F). The rainfall dramatically increases to 186 mm (7.3 in), occurring over 19 days, and humidity rises slightly to 82%. For more details on the weather conditions in May, you can visit this link: Jiangnan weather in May.

January and June exhibit stark contrasts in weather conditions. In January, temperatures range from a chilly minimum of -2°C (30°F) to a mild maximum of 17°C (63°F), with an average of 8°C (47°F). The month sees relatively low precipitation at 30 mm (1.2 in) over about 8 days, and humidity levels are around 72%. In contrast, June experiences a much warmer climate, with temperatures ranging from a minimum of 16°C (62°F) to a sizzling maximum of 36°C (96°F) and an average of 25°C (77°F). However, the month is also marked by significantly higher precipitation at 151 mm (6.0 in), occurring over 16 days, along with increased humidity at 85%. For a more detailed overview of June weather patterns, you can visit Jiangnan weather in June.

In January, the weather is notably cooler with average temperatures ranging from a chilly -2°C (30°F) to a mild 17°C (63°F), accompanied by relatively low precipitation of 30 mm (1.2 in) over about 8 days. The humidity sits at 72%, creating a crisp, wintry atmosphere. In contrast, July experiences much warmer temperatures, with minimums around 21°C (70°F) and maximums peaking at a sweltering 39°C (103°F), coupled with significant precipitation of 184 mm (7.3 in) spread across 16 days. The humidity rises to 85%, contributing to a hot and muggy summer climate. For more details on weather patterns during this time, check out Jiangnan weather in July.

In January, the weather is typically cold, with temperatures ranging from a minimum of -2°C (30°F) to a comfortable maximum of 17°C (63°F). The month sees an average temperature of 8°C (47°F) and experiences about 30 mm (1.2 in) of precipitation over 8 days, accompanied by a humidity level of 72%. In stark contrast, August offers much warmer conditions, with temperatures soaring to a maximum of 40°C (104°F) and an average of 29°C (85°F). It has a minimum temperature of 19°C (67°F) and is considerably wetter, featuring 138 mm (5.4 in) of precipitation over 13 days, and higher humidity at 87%. For more insights on August weather in Jiangnan, visit Jiangnan weather in August.

In January, the weather is quite chilly, with temperatures ranging from a minimum of -2°C (30°F) to a maximum of 17°C (63°F), and an average of 8°C (47°F). The month sees relatively low precipitation, around 30 mm (1.2 in) over 8 days, with humidity at 72%. In contrast, September experiences much warmer conditions, with temperatures ranging from a minimum of 17°C (62°F) to a scorching maximum of 37°C (100°F), averaging around 24°C (75°F). This month is also wetter, with total precipitation of 179 mm (7.0 in) distributed over 16 days and higher humidity levels at 84%. For a deeper look at September weather specifics in Jiangnan, you can visit this link: Jiangnan weather in September.

In January, the weather is cooler, with temperatures ranging from a minimum of -2°C (30°F) to an average of 8°C (47°F) and a maximum of 17°C (63°F). Precipitation is relatively low at 30 mm (1.2 in) and occurs over about 8 days, with humidity averaging 72%. In contrast, October brings much warmer temperatures, with a minimum of 9°C (49°F), an average of 18°C (65°F), and a peak of 35°C (96°F). Rainfall increases significantly to 118 mm (4.6 in), spread over approximately 15 days, while humidity rises to 81%. For more detailed insights on the weather in October, visit Jiangnan weather in October.

In January, the weather is generally cooler with temperatures ranging from a minimum of -2°C (30°F) to a maximum of 17°C (63°F), and an average temperature of 8°C (47°F). The month sees about 30 mm (1.2 in) of precipitation over approximately 8 days, coupled with a moderate humidity level of 72%. In contrast, November experiences milder temperatures, with a minimum of 4°C (39°F), an average of 13°C (56°F), and a maximum of 26°C (79°F). Precipitation increases to 60 mm (2.4 in) across 12 days, and humidity rises to 86%. The significant differences highlight November as a wetter and warmer month compared to the colder January. For more detailed information, you can visit Jiangnan weather in November.

Comparing the weather in January and December reveals some interesting contrasts. In January, temperatures range from a minimum of -2°C (30°F) to a maximum of 17°C (63°F), with an average of 8°C (47°F). The month experiences a similar amount of precipitation as December, totaling 30 mm (1.2 in) over 8 days, but the overall humidity is slightly lower at 72%. In contrast, December shows a minimum temperature of 0°C (32°F) and a maximum of 18°C (64°F), with a similar average of 9°C (49°F). While both months see comparable precipitation levels at 29 mm (1.1 in) over 8 days, December has a higher humidity at 81%. For a more detailed look at December weather, you can check Jiangnan weather in December.

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Conclusion: What to Expect From January Weather in Jiangnan

January in Jiangnan marks a notable shift in weather compared to the milder, more humid months that precede it. With average temperatures hovering around 8°C (47°F), this month is one of the coldest, often dipping to chilling lows, while the occasional maximum of 17°C (63°F) offers brief moments of respite. Precipitation is moderate, featuring around 8 days of rain that contribute to the region's characteristic humidity, which sits at 72%. This blend of cool temperatures and damp conditions creates a distinctive chill in the air, highlighting January's uniqueness in the Jiangnan climate landscape. For a comprehensive overview of the year-round weather patterns, explore Jiangnan Climate.