Last updated: August 21, 2025
In January, Jiangnan experiences a dynamic winter climate, with temperatures ranging from a pleasant maximum of 28°C (83°F) to a chilly minimum of 3°C (38°F). The average temperature hovers around 16°C (61°F), creating a mild environment for winter activities. Rainfall is minimal, with only 21 mm (0.8 in) of precipitation spread over 3 days, contributing to the region's 64% humidity. This blend of moderate temperatures and occasional rain makes January a unique time to explore the beauty of Jiangnan's winter landscape.
In Jiangnan, China, January experiences a refreshing range of temperatures, with minimums dipping to 3°C (38°F), while averages hover around a comfortable 16°C (61°F) and can peak at a warm 28°C (83°F). This month marks a transition from the chill of winter into the milder early spring, as temperatures gradually rise into February, where the minimums increase slightly and average highs edge up to 29°C (84°F). Trends show a steady ascent in warmth leading to the luscious spring months, with March and April showcasing remarkable increases in average temperatures, climbing to 21°C (70°F) and 23°C (74°F), respectively. The gradual movement toward hotter conditions sets the stage for summer, highlighting Jiangnan's climate variability and keeping the region's seasonal charm alive throughout the year.
In January, Jiangnan, China experiences a relatively dry start to the year with only 21 mm (0.8 in) of precipitation spread across just 3 days. This minimal rainfall sets the tone for the winter months, which gradually transition into the more humid spring. As February and March approach, precipitation levels begin to increase significantly, reaching 56 mm (2.2 in) and 82 mm (3.2 in), respectively. The consistency in precipitation days also rises sharply, indicating a shift from the dry spell of January to a more dynamic weather pattern as spring blossoms. By late spring and into summer, rainfall peaks dramatically, with June's average surging to 315 mm (12.4 in) over 22 days, marking a stark contrast to the cool, dry January. This trend illustrates the region's seasonal progression from dryness to the lush greenery fueled by substantial summer rainfall, embedding a rich tapestry of climate diversity throughout the year.
In January, Jiangnan, China experiences an average humidity of 64%, setting the stage for the gradual rise that follows in the early months of the year. As we transition into February and March, humidity climbs steadily to 68% and 73% respectively, hinting at the dampness that characterizes the region. This trend continues, peaking in the sweltering summer months of July and August, where humidity levels reach a notable 88%, creating a lush, verdant environment. Notably, after the summer peak, humidity begins to decrease, dropping back to 75% in September, and further to 65% by October, with a slight uptick in November at 64%. By December, the humidity stands at 69%, providing a refreshing end to the year. Overall, Jiangnan's humidity trends reflect a dynamic interplay between the seasons, offering a glimpse into the region's rich climatic tapestry.
In January, the UV Index in Jiangnan, China starts at a moderate level of 7, categorized as high, with a burn time of 25 minutes, allowing for some outdoor enjoyment while still necessitating sun safety measures. However, as the months progress, the UV Index escalates dramatically, peaking in May at an alarming 14, classified as extreme, where the risk of harm from unprotected sun exposure becomes significant, with a dangerously short burn time of just 10 minutes. Soaring into the summer, the index remains consistently high, maintaining values between 12 and 13 until September. As autumn approaches, the index gradually diminishes, returning to a safer 10 in October and 9 in November, before culminating the year back at 7 in December. This trend underscores the importance for residents and visitors alike to remain vigilant about sun protection, especially as the UV levels shift from high to extreme during the peak months. For more detailed information, explore the Jiangnan UV Index.
UV Risk Categories
In January, Jiangnan experiences a modest 202 hours of sunshine, setting the stage for a gradual increase in brightness as the year unfolds. By February, the sun shines a little brighter with 233 hours, signaling the arrival of spring. This upward trend continues into March and April, both boasting 236 hours of sunshine, allowing the region to bask in the gentle warmth. The peak is reached in July, where the sun truly shines its brightest with 307 hours, offering long, sun-drenched days. As summer gives way to autumn, sunshine hours begin to taper off slightly, with August at 276 hours and September at 280 hours. By October, the days shorten further to 271 hours, and winter starts setting in again, as November and December bring 260 and 263 hours, respectively. Overall, the year in Jiangnan showcases a harmonious rhythm of increasing sunshine, peaking in the summer before it gracefully recedes, reflecting the natural ebb and flow of seasons.
In Jiangnan, China, January boasts a 56% chance of sunny weather, making it one of the sunniest months of the year. This is notably higher than February’s 51%, suggesting a promising start to the year. However, as winter progresses into spring, the likelihood of sunshine declines significantly, with March and April seeing drastically reduced chances of sunshine at just 28% and 29%, respectively. This trend of diminishing sunshine continues through the warmer months, plummeting to a mere 10% in June, before experiencing a slight upturn in September at 38%. Interestingly, November reclaims its place among the sunnier months with a 62% chance of clear skies, indicating a seasonal ebb and flow of bright days in Jiangnan.
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.
In January, Jiangnan experiences a gentle breeze, with an average wind speed of 2.8 m/s (6 mph), setting a tranquil tone for the month. This winter wind is among the more robust of the season, slightly surpassing the breezes found in February, where speeds decrease to 2.2 m/s (5 mph). As spring approaches in March and April, the winds pick up again, fluctuating between 2.4 m/s and 2.7 m/s, suggesting a playful dance between warming temperatures and lingering winter chill. By May, winds begin to stabilize around 2.6 m/s, before tapering off into the summer months, where they reach their annual low of 1.5 m/s (3 mph) by September. This trend of decreasing wind speeds continues through the summer, only to surge again in October with a lively 3.5 m/s (8 mph), heralding the return of cooler, brisker air as the year winds down. The cyclical nature of wind in Jiangnan showcases a rhythmic shift between calm and briskness, perfectly mirroring the region’s seasonal transformations.
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 comparing the weather of January and February, January generally experiences slightly cooler temperatures, with a minimum of 3°C (38°F) and an average of 16°C (61°F), reaching a maximum of 28°C (83°F). In contrast, February sees a gradual warming trend, with minimum temperatures of 4°C (40°F) and an average of 17°C (62°F), peaking at 29°C (84°F). However, February also tends to be wetter, receiving 56 mm (2.2 in) of precipitation over 8 days compared to January's 21 mm (0.8 in) over just 3 days. Additionally, humidity levels rise from 64% in January to 68% in February, making the latter month feel a bit more muggy. For more detailed insights into February's climate, you can check Jiangnan weather in February.
In January, the weather typically features milder temperatures, with a minimum of 3°C (38°F) and a maximum of 28°C (83°F), resulting in an average of 16°C (61°F). Precipitation is relatively low, with only 21 mm (0.8 in) recorded over three days and humidity hovering around 64%. In contrast, March brings warmer conditions, with temperatures ranging from a minimum of 9°C (48°F) to a peak of 32°C (90°F) and an average of 21°C (70°F). However, it also sees a significant increase in rainfall, totaling 82 mm (3.2 in) over 15 days, and humidity rises to 73%. For a more detailed look at the changes in weather during this period, you can check out Jiangnan weather in March.
January and April display contrasting weather patterns. In January, temperatures range from a cool 3°C (38°F) to a comfortable 28°C (83°F), with an average of 16°C (61°F). The month experiences relatively low precipitation, totaling 21 mm (0.8 in) over just 3 days, and humidity levels sit at 64%. In contrast, April brings a significant increase in warmth, with temperatures ranging from a mild 11°C (53°F) to a hot 33°C (92°F) and an average of 23°C (74°F). However, April is also characterized by much higher rainfall, accumulating 127 mm (5.0 in) across 14 days, along with a slight increase in humidity to 71%. For more detailed insights, visit Jiangnan weather in April.
In January, the weather is quite mild, with temperatures ranging from a minimum of 3°C (38°F) to a maximum of 28°C (83°F) and an average of 16°C (61°F). Precipitation is relatively low, totaling 21 mm (0.8 in) over just three days, and humidity hovers around 64%. In contrast, May brings significantly warmer temperatures, with a minimum of 15°C (59°F), an average of 27°C (80°F), and a maximum reaching 35°C (96°F). However, this month also sees a substantial increase in rainfall, with 216 mm (8.5 in) spread over 20 days and humidity rising to 79%. For more detailed insights into May weather, you can check out Jiangnan weather in May.
January and June present a stark contrast in weather conditions. In January, temperatures range from a mild 3°C (38°F) at night to a pleasant average of 16°C (61°F) during the day, peaking at 28°C (83°F). The month experiences relatively low precipitation of 21 mm (0.8 in) over just three days, with humidity around 64%. In contrast, June brings significantly warmer temperatures, with nighttime lows of 23°C (74°F) and highs soaring to 35°C (96°F), averaging 29°C (84°F). However, it also sees a substantial increase in rainfall, with 315 mm (12.4 in) spread across nearly 22 days, leading to higher humidity levels of 77%. For more detailed insights, check out Jiangnan weather in June.
January and July present a stark contrast in weather patterns. In January, temperatures range from a mild minimum of 3°C (38°F) to a comfortable maximum of 28°C (83°F), with an average of 16°C (61°F). The month sees relatively low precipitation of 21 mm (0.8 in) over just 3 days, and humidity levels are moderate at 64%. In sharp contrast, July experiences much warmer temperatures with a minimum of 25°C (77°F) and a maximum soaring to 37°C (98°F), averaging around 29°C (85°F). Precipitation skyrockets to 222 mm (8.7 in), occurring over 23 days, coupled with high humidity at 88%. For a more detailed look at July weather in this region, check out Jiangnan weather in July.
January and August exhibit stark contrasts in weather conditions. In January, temperatures range from a mild minimum of 3°C (38°F) to a maximum of 28°C (83°F), with an average around 16°C (61°F) and relatively low humidity at 64%. Precipitation is minimal, with just 21 mm (0.8 in) expected over three days. In contrast, August is significantly warmer, with minimum temperatures starting at 24°C (76°F) and peaking at 37°C (100°F), averaging 29°C (84°F). This month is characterized by much higher humidity at 88% and considerable rainfall, receiving about 326 mm (12.8 in) across 25 days. For a more detailed look at August weather, you can check Jiangnan weather in August.
January and September present contrasting weather conditions. In January, temperatures range from a chilly 3°C (38°F) at night to a pleasant 28°C (83°F) during the day, with an average of 16°C (61°F). It experiences relatively low precipitation, totaling 21 mm (0.8 in) over just 3 days, and a moderate humidity of 64%. In sharp contrast, September boasts much warmer temperatures, with a minimum of 21°C (70°F) and peaking at a sizzling 35°C (95°F), averaging 28°C (83°F). This month also sees significantly higher rainfall, accumulating 233 mm (9.2 in) over 23 days, accompanied by increased humidity at 75%. For more detailed insights, check out Jiangnan weather in September.
In January, the weather features a milder temperature range, with minimums around 3°C (38°F) and maximums reaching up to 28°C (83°F), accompanied by relatively low precipitation of 21 mm (0.8 in) over just three days and a humidity level of 64%. In contrast, October brings significantly warmer temperatures, with a minimum of 15°C (60°F) and a maximum of 35°C (95°F), along with much heavier rainfall totaling 143 mm (5.6 in) over 12 days, all while maintaining a similar humidity level at 65%. This shift highlights the transition from a cooler, drier beginning of the year to a hotter and wetter mid-autumn period. For more specific details on October weather, you can visit Jiangnan weather in October.
In January, temperatures range from a minimum of 3°C (38°F) to a maximum of 28°C (83°F), with an average of 16°C (61°F). The month sees relatively low precipitation at 21 mm (0.8 in) over about 3 days, and humidity stands at 64%. In contrast, November experiences milder temperatures, with minimums around 12°C (54°F) and maximums reaching up to 31°C (88°F), resulting in an average of 21°C (70°F). Precipitation is slightly higher in November at 27 mm (1.1 in) over 5 days, while humidity remains consistent at 64%. For a closer look at the specifics of this month, you can explore Jiangnan weather in November.
In January, temperatures range from a minimum of 3°C (38°F) to a maximum of 28°C (83°F), with an average of 16°C (61°F), while December sees slightly warmer conditions, with a minimum of 7°C (44°F) and a maximum of 29°C (84°F), averaging at 17°C (62°F). Both months experience similar precipitation levels, with January receiving 21 mm (0.8 in) and December 17 mm (0.7 in), occurring over three days in each month. Humidity is also comparable, as January has 64% relative humidity compared to December's 69%. For more insights into December weather patterns, you can visit Jiangnan weather in December.
January in Jiangnan offers a refreshing change compared to other months, with mild temperatures that range from cool nights to pleasantly warm days. With an average temperature of 16°C (61°F), it stands as one of the cooler months, allowing residents and visitors to experience a comfortable winter without the extremes often felt elsewhere. The 64% humidity adds a crispness to the air, while the relatively low precipitation of 21 mm (0.8 in) across just 3 days ensures that rain won't disrupt outdoor plans. As winter gives way to the onset of spring, January serves as a perfect time to enjoy Jiangnan's transition, making it a unique month worth exploring. For more details, check out the full overview of the region: Jiangnan Climate.