Last updated: August 21, 2025
In Nanjing, China, January weather showcases a striking contrast, with maximum temperatures reaching up to 26°C (78°F), while the average hovers around a crisp 10°C (50°F), dipping to a chilly minimum of -2°C (29°F). Over the month, residents can expect 43 mm (1.7 in) of precipitation spread across six days, contributing to the city's overall humidity levels of 63%. This blend of temperature fluctuations and occasional rain makes January a month of intriguing weather patterns, perfect for exploring Nanjing’s winter charm.
In Nanjing, China, January greets residents with a crisp chill, featuring minimum temperatures that dip as low as -2°C (29°F), yet the month manages an average of 10°C (50°F), making for a diverse temperature range. Although the maximum can reach a warm 26°C (78°F), the overall trend in January indicates a gradual transition from the colder winter months toward the milder weather that follows in February, which slightly increases to an average of 11°C (52°F). As the year progresses, temperatures steadily rise, showcasing Nanjing's shift from winter's cool embrace to the warmth of spring, reflecting a vibrant climate that evolves beautifully as the seasons change.
In January, Nanjing experiences relatively low precipitation, totaling 43 mm (1.7 in) over just 6 days, marking one of the driest months of the year. This trend of minimal rainfall contrasts sharply with the subsequent months, particularly February and March, which see a steep increase in both precipitation amounts and rainy days. As spring approaches, the city's weather becomes markedly wetter, with March alone accumulating 162 mm (6.4 in) over 17 days. This progressive rise continues into the summer months, where June peaks with an impressive 258 mm (10.1 in), accompanied by 21 rainy days. Overall, January sets the stage for a transition from a dry winter into a season marked by lush rainfall, underscoring a broader pattern of increasing precipitation as the year unfolds.
In January, Nanjing experiences a humidity level of 63%, setting the stage for a winter that remains relatively dry compared to the heavy dampness that follows. As February rolls around, the humidity ticks upward to 66%, hinting at the approaching spring. By March, the climate shifts significantly, with humidity rising to 77%, reflecting the onset of the season's moisture. This trend continues into April at 73%, but it skyrockets in May, reaching an 85% peak as summer nears, and remains high throughout the summer months, with July at a sweltering 89%. Even in August, humidity hovers at 88%, creating a muggy atmosphere. As autumn sets in, humidity drops sharply, beginning with 62% in September and further decreasing to 56% in October—the driest month of the year. However, the cycle revisits as November returns to 63% before climbing to 70% in December, illustrating a rhythm of humidity that mirrors Nanjing's seasonal transitions and influences the local climate throughout the year.
In January, Nanjing experiences a UV Index of 7, categorized as high, which means you could incur sunburn in just 25 minutes of direct exposure. As the year progresses, the UV intensity significantly increases, peaking in May through August when the Index hits a staggering 13, classified as extreme with a mere 10 minutes of burn time. This upward trend highlights the necessity for vigilant sun protection, particularly in the late spring and summer months. Interestingly, as the year winds down, the UV levels gradually decrease, returning to 7 by December. For detailed insights and guidelines on managing sun exposure throughout the year, visit Nanjing UV Index.
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In Nanjing, the sunshine graces the city with 196 hours in January, marking a tranquil start to the year. As winter gives way to spring, February sees an increase to 220 hours, hinting at the forthcoming warmth. March and April continue this upward trend, with 209 and 224 hours respectively, illuminating the blossoming flora. The sun shines brightest in the summer months, peaking at 311 hours in July, creating vibrant days perfect for exploration. Although August slightly dips to 309 hours, the golden rays remain abundant. As the seasons shift into autumn, sunlight gradually wanes, but October and November still boast respectable 257 and 232 hours. December wraps up the year with 244 hours, ensuring that Nanjing's charm is bathed in light throughout the months, even as the days grow shorter. This rhythmic pattern of sunshine showcases the dynamic beauty of the seasons in Nanjing.
In Nanjing, China, January boasts a notable 68% chance of sunny weather, making it one of the sunniest months of the year. This trend stands in stark contrast to the following months, where the likelihood of sunshine decreases significantly, dropping to 53% in February and plunging to as low as 14% by June. Interestingly, the sun re-emerges more frequently in the latter half of the year, with September and November both reaching 53%. However, January remains a peak period for sun seekers, as it sets the stage for the bright days that will gradually become less frequent as the year progresses.
In Nanjing, China, January marks the beginning of the year with approximately 10 hours of daylight. As the months progress into February, the days gradually lengthen to 11 hours, signaling the approach of spring. By March, daylight extends further to 12 hours, maintaining this ideal duration through April. The late spring and early summer months of May through July enjoy the longest days, each boasting 13 hours of sunlight—perfect for outdoor activities and exploration. As August arrives, daylight begins to retreat slightly, transitioning back to 12 hours. This decline continues into September and October, where daylight hovers around 11 hours. Finally, both November and December witness a return to 10 hours of daylight, wrapping up the year with a familiar rhythm. This seasonal progression highlights Nanjing's balanced cycle of light, offering a rich backdrop for each month's unique charms.
In January, Nanjing experiences an average wind speed of 2.6 m/s (6 mph), setting a brisk tone for the year ahead. This blustery start is notably higher than the winds we see in the following month, February, which dips to 2.0 m/s (5 mph). As winter transitions into spring, the winds remain relatively mild, with the average speed fluctuating slightly, peaking again at 2.9 m/s (6 mph) in October, as autumn begins to embrace the city. Overall, January's winds herald a blend of vitality and freshness, while the subsequent months reveal a gentle easing, culminating in the calmest breezes in later summer and early fall. This trend underscores Nanjing's dynamic climate, where the change in seasons plays a pivotal role in shaping the city's atmospheric character.
Weather in Nanjing varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Nanjing, focusing on differences in temperature, rainfall, humidity, and UV levels.
In January, temperatures typically range from a minimum of -2°C (29°F) to a maximum of 26°C (78°F), with an average temperature of 10°C (50°F). The month experiences around 43 mm (1.7 in) of precipitation over six days, and humidity averages at 63%. In comparison, February sees a slight increase in average temperatures, rising to 11°C (52°F) with maximums reaching 28°C (82°F), while the minimum remains at -2°C (29°F). However, February experiences significantly higher precipitation at 82 mm (3.2 in) across nine days, and humidity levels increase marginally to 66%. For more detailed insights, check out Nanjing weather in February.
January's weather is characterized by cooler temperatures, with an average of 10°C (50°F) and a maximum of 26°C (78°F). The month experiences relatively low precipitation, totaling 43 mm (1.7 in) over just 6 days, and a humidity level of 63%. In contrast, March brings a noticeable warmth, with average temperatures rising to 16°C (61°F) and highs reaching up to 30°C (87°F). However, this increase in warmth comes with significantly higher precipitation, measuring 162 mm (6.4 in) across 17 days and a higher humidity level of 77%. For a detailed look at the weather during March in Nanjing, you can refer to Nanjing weather in March.
January and April showcase contrasting weather patterns. In January, temperatures range from a chilly minimum of -2°C (29°F) to a mild maximum of 26°C (78°F), with an average around 10°C (50°F). Precipitation is relatively low at 43 mm (1.7 inches) over just 6 days, with humidity at 63%. Conversely, April brings warmer weather with a minimum of 7°C (45°F) and a much higher average of 19°C (67°F), peaking at 31°C (88°F). This month also sees significantly increased rainfall, totaling 168 mm (6.6 inches) across 17 days, along with a rise in humidity to 73%. For a closer look at conditions during this vibrant spring month, check out Nanjing weather in April.
January and May present striking contrasts in weather. In January, temperatures range from a chilly minimum of -2°C (29°F) to a mild maximum of 26°C (78°F), with an average of 10°C (50°F). The month sees relatively low precipitation, with just 43 mm (1.7 in) over six days, and humidity levels sit at a moderate 63%. In stark contrast, May boasts significantly warmer temperatures, with a minimum of 11°C (53°F) and a maximum soaring to 34°C (94°F), resulting in an average of 24°C (75°F). However, this warmth comes with increased rainfall, totaling 171 mm (6.7 in) across 19 days, and a higher humidity level of 85%. For more details on the specific weather conditions, check out Nanjing weather in May.
In January, the weather in Nanjing is relatively cool, with temperatures ranging from a minimum of -2°C (29°F) to a maximum of 26°C (78°F) and an average of around 10°C (50°F). Precipitation is moderate, averaging 43 mm (1.7 in) over about 6 days, and the humidity is at a comfortable 63%. In stark contrast, June brings much warmer temperatures, with a minimum of 18°C (64°F), an average of 26°C (79°F), and a peak of 34°C (94°F). The month is considerably wetter, receiving an impressive 258 mm (10.1 in) of rainfall over approximately 21 days, with humidity levels rising to 83%. For more detailed information, check out Nanjing weather in June.
The weather in January contrasts significantly with that of July. In January, temperatures range from a chilly minimum of -2°C (29°F) to a mild maximum of 26°C (78°F), with an average of 10°C (50°F). The month experiences about 43 mm (1.7 in) of precipitation over approximately 6 days and has a humidity level of 63%. In stark contrast, July brings warm and humid conditions, where temperatures range from a minimum of 21°C (70°F) to a scorching maximum of 39°C (103°F), with an average temperature of 28°C (83°F). Precipitation is higher in July, totaling 98 mm (3.9 in) over 16 days, and humidity levels increase to 89%. For more detailed insights, visit Nanjing weather in July.
January and August present two distinctly different weather experiences. In January, temperatures range from a chilly -2°C (29°F) at night to a pleasant 26°C (78°F) during the day, with an average of 10°C (50°F). The month sees relatively low precipitation, totaling 43 mm (1.7 in) over just 6 days, and humidity levels are moderate at 63%. In contrast, August brings heat and humidity, with minimum temperatures of 22°C (71°F) and maximums soaring to 37°C (100°F), averaging around 28°C (82°F). Precipitation increases significantly to 152 mm (6.0 in) spread over 20 days, contributing to a much higher humidity at 88%. For more details on August's weather in Nanjing, visit Nanjing weather in August.
In January, the weather is much cooler, with temperatures ranging from a chilly minimum of -2°C (29°F) to a mild maximum of 26°C (78°F), and an average of 10°C (50°F). The month sees relatively low precipitation, totaling 43 mm (1.7 in) over about 6 days, along with a humidity level of 63%.
Conversely, September experiences significantly warmer temperatures, with a minimum of 17°C (63°F) and a maximum reaching up to 38°C (100°F), resulting in an average of 26°C (79°F). However, this month is also much wetter, receiving 108 mm (4.3 in) of rain across 15 days while maintaining similar humidity levels at 62%. For more detailed information, check Nanjing weather in September.
January and October present stark contrasts in temperature and overall weather conditions. In January, temperatures can dip as low as -2°C (29°F) at night, with an average of 10°C (50°F) during the day and highs reaching 26°C (78°F). The month sees around 43 mm (1.7 in) of precipitation over about six days, accompanied by a humidity level of 63%. In contrast, October offers a much warmer experience, with minimum temperatures of 11°C (52°F), an average of 21°C (70°F), and maximum highs soaring to 36°C (96°F). Slightly more precipitation occurs in October, totaling 50 mm (2.0 in) over the same span of six days, but with lower humidity at 56%. This shift from the colder, wetter January to the warmer and drier October highlights the seasonal changes in climate. For more details, you can check Nanjing weather in October.
In comparing the weather between January and November, we see notable differences in temperature and precipitation patterns. January has a minimum temperature of -2°C (29°F) and an average of 10°C (50°F), whereas November experiences milder conditions with a minimum of 5°C (42°F) and an average of 16°C (62°F). Both months have similar humidity levels at 63%, but January's precipitation is slightly lower at 43 mm (1.7 in) over 6 days, compared to November's 45 mm (1.8 in) over 8 days. For more information on November weather specifics, you can check Nanjing weather in November.
In January, temperatures tend to be slightly cooler, with a minimum of -2°C (29°F) compared to December's minimum of 0°C (32°F). Both months experience a maximum temperature of 26°C (79°F), but January averages 10°C (50°F) versus December's average of 11°C (52°F). Precipitation is a bit higher in January at 43 mm (1.7 in) over six days, while December sees slightly less at 31 mm (1.2 in) over five days. Additionally, January's humidity averages 63%, which is lower than December's 70%. For a more detailed look at December's weather, you can refer to Nanjing weather in December.
As you explore Nanjing's January weather, you'll notice a distinct contrast to the milder months that precede and follow it. January showcases a chillier climate with temperatures dipping to an average of 10°C, offering a refreshing break from the warmth of summer. While you may experience the occasional sunny day with highs reaching 26°C, the overall ambiance is marked by cooler mornings and evenings, occasionally dropping near freezing. With an average of 43 mm of precipitation over just a handful of days, the city remains relatively dry compared to the rainier seasons. The humility of January, typically at around 63%, adds to the crispness of the air, making it a unique and refreshing time to visit. If you’d like to learn more about Nanjing's weather patterns throughout the year, check out Nanjing Climate.