Last updated: August 21, 2025
January in Nanjing, China is marked by a diverse range of temperatures, with highs reaching 18°C (64°F) and lows plunging to a chilly -10°C (13°F). The month averages a modest 4°C (40°F), creating a crisp winter atmosphere. Rainfall is relatively light, totaling 53 mm (2.1 in) over 8 days, contributing to the city's winter charm. With a humidity level of 70%, the air can feel brisk, making warm clothing essential for outdoor activities. Embrace the season's unique blend of cool temperatures and occasional rain, which sets the perfect backdrop for exploring Nanjing's rich history and culture.
In Nanjing, China, January showcases a notable range of temperatures, beginning with minimums plummeting to -10°C (13°F), which makes for a crisp winter ambiance. The month averages a refreshing 4°C (40°F), while the daytime can warm up to a comfortable 18°C (64°F). This variation hints at a transitional phase into the milder months ahead. As February approaches, the temperatures dip even lower, with a minimum of -11°C (12°F), yet the upward trend in the maximum temperatures to 26°C (79°F) in the same month is a promising sign of spring's impending arrival. The average temperatures of 6°C (43°F) in February set the stage for a gradual warming, transitioning into the more temperate months of March and April, where the daily highs rise significantly. This cyclical pattern illustrates Nanjing's unique climate, moving from the chill of winter into a more inviting spring atmosphere.
In January, Nanjing experiences moderate precipitation, with a total of 53 mm (2.1 in) falling over approximately 8 days. This sets the tone for the winter months, as January is characterized by relatively light rainfall, only slightly preceding February's amount of 52 mm (2.0 in). As the season transitions into spring, March sees a notable increase to 66 mm over 10 days, signaling the gradual arrival of more consistent rainfall. The trends throughout the first half of the year reveal a steady escalation in precipitation, peaking in the summer months with July receiving a significant 228 mm (9.0 in). This pattern illustrates Nanjing's shift from the drier, cooler winter to a much wetter and warmer climate as the year progresses.
In January, Nanjing experiences a humidity level of 70%, marking the beginning of the year's moisture trend. As the months progress, humidity steadily increases, peaking at a high of 90% in July, the summer's zenith. This trend of rising humidity continues through August but begins to decline in September, dropping to 75%. While the autumn months see a slight fluctuation, with humidity averaging around 76% to 84%, it remains notably higher than in January. Overall, the pattern reveals a clear progression from the cooler, less humid winter months to the lush, more humid conditions of summer, exemplifying Nanjing's distinct seasonal changes.
In January, Nanjing experiences a moderate UV Index of 5, with a recommended burn time of 30 minutes under direct sunlight. As the month transitions into February, the UV Index rises to 6, shifting to a high exposure category and reducing burn time to 25 minutes. This upward trend continues into the spring months, with March and April reaching a very high index of 8 and 10, respectively, and burn times dropping to just 15 minutes. By the time summer rolls around, the UV intensity peaks at an extreme category of 11 in June and July, requiring careful sun protection as burn time shrinks to a mere 10 minutes. As the year progresses into fall, the UV Index gradually decreases, landing at 5 in November, before tapering off to 4 in December, allowing for 30 minutes of safer exposure. To stay informed about daily UV levels and protect your skin, visit Nanjing UV Index.
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In Nanjing, China, January welcomes 159 hours of sunshine, marking the year's start with a modest glow. As winter fades, February sees an increase to 214 hours, hinting at the gradual warmth to come. By March, the sun graces the city for 237 hours, paving the way for spring's embrace. The days grow longer and brighter in April and May, peaking at 275 hours of radiance, which sets the stage for the summer months. June and July continue this trend, with 277 and 287 hours, respectively, offering vibrant days under the sun. As we transition into August, the peak hours soar to 296, before a slight decline begins in September. The autumn months bring a gentle tapering of sunshine, with October at 233 hours and November offering 223 hours. December completes the cycle with 216 hours, reflecting the year’s ebb and flow of light, as Nanjing transitions gracefully from the bright summery days back into the cozy embrace of winter.
In Nanjing, January boasts a 49% chance of sunny weather, making it one of the more favorable months for sunlight during the winter. This favorable likelihood slightly dips in February to 45%, but it sharply contrasts with the much lower chances seen in early spring, where March sees only a 26% probability of sun. As the year progresses, the likelihood of sunny days tends to fluctuate, with the Gloomy period lingering until November jumps to 62%, while the sunniest months approach in December at 68%. Thus, while January offers decent odds for sunshine, it is part of a broader trend that sees sunlight return more consistently as the year advances.
In Nanjing, China, January ushers in a modest 10 hours of daylight, setting a tranquil tone for the new year. As winter transitions into spring, daylight hours gradually increase, reaching 11 hours in both February and March. This upward trend continues into April, where residents enjoy 12 hours of light, fostering a sense of renewal and growth. May and June peak at a bright 13 and 14 hours respectively, showcasing the region's vibrant summer days filled with energy and activity. However, as the summer heat begins to wane, daylight hours gently decline, returning to 13 hours in July and August, before tapering off to 12 hours in September. The descent continues into the autumn months, with 10 hours of daylight reappearing by November, as winter reclaims its hold in December, once again framing the year with shorter days. This cyclical rhythm of daylight reflects the natural ebb and flow of seasons, inviting residents to embrace both the bright and subdued moments throughout the year.
In January, Nanjing experiences a gentle breeze with an average wind speed of 3.0 m/s (7 mph), setting a tranquil tone for the month. This brisk yet pleasant wind paves the way for slightly stronger gusts in February, peaking at 3.4 m/s (8 mph). As spring approaches in March, the winds calm slightly to 3.1 m/s (7 mph), before consistently tapering off through the warmer months of May and June, where they dip to around 2.5 m/s (6 mph). However, by July, the wind picks up again, mirroring February's high at 3.4 m/s (8 mph), indicating a seasonal rise in air movement, perhaps due to increased thermal activity. The trend stabilizes as summer transitions to autumn, with wind speeds remaining modest and fluctuating around 2.9 m/s to 3.0 m/s from September to November, giving Nanjing a steady, refreshing feel as the year winds down. Overall, January serves as a calm yet dynamic entry point into the varied wind patterns that define Nanjing's climate throughout the year.
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.
January typically experiences colder temperatures with a minimum of -10°C (13°F) and an average of 4°C (40°F), while February sees a slight increase, with minimums dropping to -11°C (13°F) but an average rising to 6°C (43°F). February also boasts a higher maximum temperature of 26°C (79°F), compared to January's maximum of 18°C (64°F), indicating a notable warming trend. Precipitation levels remain fairly consistent between the two months, with January totalizing 53 mm (2.1 in) over 8 days and February slightly less at 52 mm (2.0 in) over 9 days. Additionally, humidity levels are slightly higher in February at 73%, compared to January’s 70%. For more details on February weather patterns, you can explore Nanjing weather in February.
In January, the weather is quite cold, with temperatures ranging from a chilly -10°C (13°F) at night to a maximum of 18°C (64°F) during the day, averaging around 4°C (40°F). The month experiences around 53 mm (2.1 in) of precipitation over approximately 8 days and has a humidity level of 70%. In contrast, March brings a noticeable shift towards milder temperatures, ranging from a minimum of 0°C (31°F) to a pleasant maximum of 29°C (84°F), with an average temperature of 12°C (54°F). Precipitation increases slightly to 66 mm (2.6 in) across about 10 days, and humidity rises to 82%, contributing to a more humid feel. For more details, check out Nanjing weather in March.
January weather in Nanjing is characterized by cold temperatures, with a minimum reaching -10°C (13°F) and an average of 4°C (40°F). In contrast, April ushers in much warmer conditions, featuring a minimum of 5°C (41°F) and an average temperature of 17°C (62°F). While January sees about 53 mm (2.1 in) of precipitation over 8 days, April experiences slightly higher precipitation at 69 mm (2.7 in) distributed across 9 days, accompanied by increased humidity levels; January's 70% compared to April's 86%. For a detailed overview of Nanjing's April weather, you can check this link: Nanjing weather in April.
In January, the weather tends to be quite chilly, with temperatures ranging from a minimum of -10°C (13°F) to a maximum of 18°C (64°F) and an average of 4°C (40°F). The month experiences around 53 mm (2.1 in) of precipitation over 8 days, coupled with a humidity level of 70%. In stark contrast, May brings much warmer temperatures, with minimums of 10°C (51°F), averages reaching 22°C (72°F), and maximums soaring up to 36°C (96°F). This month sees a significant increase in precipitation, totaling 143 mm (5.6 in) over 9 days and higher humidity at 85%. For more detailed information, you can check out Nanjing weather in May.
January and June present strikingly different weather conditions. In January, temperatures can drop as low as -10°C (13°F), with an average of 4°C (40°F) and maximums reaching 18°C (64°F). The month is relatively dry with 53 mm (2.1 in) of precipitation over about 8 days, and humidity levels around 70%. In contrast, June boasts much warmer temperatures, with a minimum of 17°C (62°F), an average of 26°C (78°F), and highs soaring up to 36°C (96°F). The month is also wetter, receiving 156 mm (6.2 in) of rainfall across roughly 10 days, alongside higher humidity levels of 85%. This dramatic shift from the cold of January to the heat of June highlights the seasonal extremes experienced throughout the year. For more detailed insights on the June climate, you can refer to Nanjing weather in June.
The weather in January contrasts sharply with that of July. In January, temperatures can plummet as low as -10°C (13°F), with an average hovering around 4°C (40°F), and maximums reaching just 18°C (64°F). The month sees about 53 mm (2.1 in) of precipitation over 8 days, accompanied by a humidity level of 70%. In stark comparison, July boasts a much milder climate, with minimum temperatures starting at 19°C (67°F) and averaging 28°C (83°F), peaking at a sweltering 38°C (101°F). July is significantly wetter, with total precipitation of 228 mm (9.0 in) spread across 18 days and high humidity at 90%. Those looking to learn more about conditions during this summer month can explore Nanjing weather in July.
January and August present strikingly different weather patterns. In January, temperatures range from a chilly -10°C (13°F) to a mild 18°C (64°F), with an average of 4°C (40°F). This month sees about 53 mm (2.1 in) of precipitation over 8 days, coupled with a humidity level of 70%. Conversely, August experiences a significantly warmer climate, with temperatures fluctuating between 21°C (71°F) and a scorching 38°C (100°F), averaging 29°C (84°F). During this month, precipitation rises to 189 mm (7.4 in) over 14 days and humidity peaks at 88%. The contrasting conditions highlight the seasonal extremes in Nanjing's climate. For more detailed insights, visit Nanjing weather in August.
January and September display stark contrasts in weather patterns. January typically has minimum temperatures around -10°C (13°F) and averages around 4°C (40°F), while September sees much warmer minimums of 15°C (60°F) and an average of 24°C (76°F). The maximum temperatures also reflect this difference, with January peaking at 18°C (64°F) compared to September's highs of 36°C (97°F). In terms of precipitation, January receives 53 mm (2.1 in) over about 8 days, whereas September has a higher total of 86 mm (3.4 in), with rainfall occurring on about 10 days. Humidity levels are relatively similar, with January at 70% and September slightly higher at 75%. For more specific details on September conditions, check Nanjing weather in September.
January and October exhibit contrasting weather patterns, marked by significant differences in temperature and humidity. In January, temperatures can plummet with a minimum of -10°C (13°F) and an average of 4°C (40°F), while October experiences much milder conditions, starting at a minimum of 7°C (45°F) and soaring to a maximum of 36°C (97°F) with an average of 18°C (65°F). Precipitation levels are similar, with January receiving 53 mm (2.1 in) over 8 days and October slightly higher at 54 mm (2.1 in) over 7 days. Humidity also differs, being at 70% in January compared to 76% in October, creating a more humid atmosphere in the latter month. For a detailed overview of October's weather patterns, you can check out Nanjing weather in October.
In January, temperatures in the region can plunge to a minimum of -10°C (13°F), with an average of 4°C (40°F) and occasional highs reaching up to 18°C (64°F). The month sees about 53 mm (2.1 inches) of precipitation over 8 days, accompanied by a humidity level of 70%. In contrast, November typically offers much milder weather, with temperatures ranging from a minimum of 0°C (32°F) to a comfortable average of 13°C (55°F), peaking at 28°C (83°F). Precipitation is slightly lower at 44 mm (1.7 inches), occurring over just 6 days, but the humidity is higher at 84%. This significant difference underscores how November feels much warmer and wetter compared to the frigid days of January. For more details, check out Nanjing weather in November.
When comparing the weather in January and December, January tends to be slightly colder with average temperatures ranging from a minimum of -10°C (13°F) to a maximum of 18°C (64°F), while December sees temperatures that are milder, with minimums of -7°C (20°F) and maximums reaching 20°C (68°F). Additionally, January experiences a bit more precipitation at 53 mm (2.1 in) over 8 days, compared to December’s 40 mm (1.6 in) over 7 days. Humidity is also higher in December at 77%, compared to January’s 70%. For more detailed insight, you can visit Nanjing weather in December.
January in Nanjing stands out as a month of contrasts, where winter firmly grips the city with its chilly temperatures and notable humidity. Unlike the humid, hot summer months, January brings a crispness to the air, with maximums peaking at a mild 18°C (64°F) but often dropping well below freezing during the nights. Rainfall is moderate, with a few precipitation days that lend a refreshing touch to the dry winter landscape. This unique blend of cool air and occasional dampness sets January apart from Nanjing's other months, making it a perfect time for winter enthusiasts. For more detailed information on Nanjing's seasonal variations, visit Nanjing Climate.