Last updated: August 21, 2025
January in Hangzhou, China is characterized by a cool and refreshing climate, with temperatures ranging from a maximum of 24°C (75°F) to a chilly minimum of -9°C (16°F). The month boasts an average temperature of 6°C (43°F), making it a time for warm layers and cozy gatherings. With an annual precipitation of 79 mm (3.1 in) spread across 9 days, January is relatively wet, often enveloped in a gentle mist that adds to the city's enchanting winter atmosphere. The humidity rests at a comfortable 70%, contributing to the atmospheric charm synonymous with Hangzhou during this season.
In January, Hangzhou experiences a wide temperature range, with nighttime lows dropping to -9°C (16°F) and daytime highs reaching up to 24°C (75°F). The average temperature sits at a chilly 6°C (43°F), signaling the depths of winter in this picturesque city. As the month transitions into February, temperatures gradually rise, hinting at the approaching spring, with minimums hovering around -4°C (25°F) and maximums peaking at 27°C (80°F). This upward trend continues into March, where milder days allow for blossoms to emerge, as temperatures shift from a brisk 2°C (35°F) at night to a pleasant 29°C (85°F) during the day. January’s cold serves as a precursor to the warmth that follows, making it a time of transformation and anticipation in Hangzhou.
In January, Hangzhou experiences a moderate start to the year with 79 mm (3.1 in) of precipitation over approximately 9 days. This month sets the tone for a wetter season ahead, as rainfall gradually increases in the following months, peaking in June with a staggering 348 mm (13.7 in). The pattern reveals a steady rise in both the amount and frequency of rain as winter transitions into spring, particularly evident in March, which sees a significant jump to 119 mm (4.7 in) across 14 days. As the year progresses, March through May showcases the region's characteristic downpours, with May delivering the highest monthly total before the summer months taper off slightly. Overall, January's precipitation hints at the diverse climate of Hangzhou, where rainfall plays a vital role in enriching its lush landscapes.
In January, Hangzhou experiences a moderate humidity level of 70%, providing a comfortable start to the year. As winter transitions into spring, humidity gradually increases, reaching 73% in February. This upward trend continues steadily, with March seeing 81% and April climbing to 87%, marking the onset of the more humid months ahead. Both May and June maintain this high humidity level at 87% and 89% respectively, as the summer season approaches. July peaks at a sultry 93%, making it the most humid month of the year. August sees a slight dip to 91%, followed by a decrease in September to 81%, suggesting a slow transition into the autumn months. As the year draws to a close, October and November maintain a more moderate humidity, at 80% and 82%, before December eases back to 77%. This gradual cycle illustrates Hangzhou's seasonal humidity patterns, with summer months proving to be particularly muggy.
In January, Hangzhou experiences a moderate UV Index of 5, indicating a typical winter atmosphere where direct sun exposure can lead to sunburn in about 30 minutes. As the months progress, there’s a notable shift; February sees an increase to a high UV Index of 6, reducing burn time to 25 minutes. This upward trend continues dramatically into March and April, where the UV Index soars to 9 and 10 respectively, with burn times dropping to just 15 minutes. By May through August, residents and visitors contend with an extreme UV Index of 11, highlighting the necessity for sun protection as burn time decreases to just 10 minutes. Following a brief dip in September to 10, and October at 8, the UV levels in Hangzhou start to taper off in the later months of the year, returning to a moderate level of 4 in December. Understanding these trends can help you plan outdoor activities safely throughout the year. For more details, check out Hangzhou UV Index.
UV Risk Categories
In January, Hangzhou greets the new year with a modest 142 hours of sunshine, setting a gentle tone as winter lingers. As the months roll into February and March, the days slowly brighten, bringing 195 and 210 hours of sunlight respectively. This gradual increase hints at the approaching warmth of spring, which bursts forth in April with a vibrant 249 hours of sunshine. The trend continues into May and June, with sunshine peaking at 273 hours, before slightly tapering off in the summer months. July and August showcase the city’s solar bounty, boasting 285 and 312 hours, captivating sun-seekers with their brilliance. As the year nears its end, sunlight begins to wane again, dropping to 243 hours in September and settling around 210 hours by December. This cyclical rhythm of sunlight in Hangzhou beautifully underscores the changing seasons, inviting both locals and visitors to savor each radiant moment.
In January, Hangzhou enjoys a 51% chance of sunny weather, making it one of the brighter months of the year. This is particularly striking when compared to the subsequent months, where the likelihood of sunshine notably drops, hitting a low of just 15% in July. After January, the chances fluctuate, with February seeing a significant decline to 38%, while the following months tend to hover around the 30% mark or lower. Interestingly, sunny days begin to make a comeback in November, reaching 46%, and peak again in December at 65%, suggesting a seasonal transition back to brighter skies. Overall, January stands out as a promising month for sun-seekers in Hangzhou before the region's typical cloudy weather sets in.
In Hangzhou, China, January ushers in 10 hours of daylight, marking the season when the days are just beginning to lengthen after winter's grip. As February approaches, the daylight increases to 11 hours, suggesting a gradual transition towards spring. This upward trend continues into March and April, where daylight stretches to 11 and then 12 hours respectively, inviting vibrant blooms across the landscape. By May and June, the days reach their peak, basking in 13 and 14 hours of sunlight, perfect for outdoor adventures. However, as summer fades into autumn, daylight begins its slow retreat, tapering back to 13 hours in July and August, then down to 12 in September. The cycle completes as October sees a return to 11 hours, followed by 10 hours in both November and December, as winter once again settles in, reminding us of the rhythmic dance of daylight throughout the year.
In January, the crisp air of Hangzhou greets visitors with a gentle average wind speed of 2.5 m/s (6 mph), a figure that remains consistent throughout the winter months, setting a tranquil tone for the beginning of the year. As February and March follow suit with the same mild breezes, the city's winter retains its calm character. However, attention shifts by July, when winds pick up to 3.2 m/s (7 mph), hinting at a more dynamic summer atmosphere. Interestingly, as summer ebbs into autumn, wind speeds slightly fluctuate, with a dip in June and August before a modest resurgence in October. Ultimately, the wind patterns in Hangzhou reveal a remarkably steady flow during winter, transitioning to a livelier pace as seasons change, enriching the experience of this picturesque city.
Weather in Hangzhou varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Hangzhou, focusing on differences in temperature, rainfall, humidity, and UV levels.
January and February display notable differences in weather patterns. January typically experiences colder temperatures, with a minimum of -9°C (16°F) and an average of 6°C (43°F), while February sees slightly milder conditions, with a minimum temperature of -4°C (25°F) and an average of 8°C (46°F). The maximum temperatures also rise, from 24°C (75°F) in January to 27°C (80°F) in February. Precipitation decreases slightly in February to 68 mm (2.7 in) over 9 days, compared to January's 79 mm (3.1 in) for the same duration. Humidity remains relatively similar, with January at 70% and February at 73%. For more detailed information, you can check Hangzhou weather in February.
January and March present notable differences in weather conditions. In January, temperatures can dip as low as -9°C (16°F), with an average high of 6°C (43°F). The month sees about 79 mm (3.1 in) of precipitation over 9 days, accompanied by a humidity level of 70%. In contrast, March experiences warmer weather, with temperatures ranging from a minimum of 2°C (35°F) to a maximum of 29°C (85°F) and an average of 13°C (56°F). The precipitation increases to 119 mm (4.7 in) over 14 days, while humidity rises slightly to 81%. For more detailed information, you can visit Hangzhou weather in March.
January and April present contrasting weather patterns. In January, temperatures can dip as low as -9°C (16°F), with an average temperature of 6°C (43°F) and a maximum reaching 24°C (75°F). This month experiences significant precipitation of 79 mm (3.1 in) over about 9 days with 70% humidity. In contrast, April sees much milder conditions, with temperatures starting at a minimum of 4°C (40°F), averaging 18°C (64°F), and peaking at 34°C (94°F). Although April has slightly higher precipitation at 89 mm (3.5 in) over 10 days, the humidity rises to 87%. For more detailed insights, you can check Hangzhou weather in April.
January and May present stark contrasts in weather conditions. In January, temperatures can drop as low as -9°C (16°F), with an average of 6°C (43°F) and a high reaching only 24°C (75°F). This colder month experiences about 79 mm (3.1 in) of precipitation over 9 days, accompanied by a humidity level of 70%. In comparison, May showcases a much milder climate, with temperatures ranging from a minimum of 11°C (52°F) to an average of 23°C (73°F) and a peak temperature soaring to 38°C (101°F). May also sees more rainfall, totaling 165 mm (6.5 in) over 12 days, and higher humidity at 87%. For a closer look at what to expect, you can check out Hangzhou weather in May.
January and June present stark contrasts in weather. In January, temperatures range from a chilly -9°C (16°F) at their lowest to a mild 24°C (75°F) at their highest, with an average of 6°C (43°F). The month sees about 79 mm (3.1 in) of precipitation over 9 days and has a humidity level of 70%. Conversely, June features significantly warmer temperatures, with a minimum of 17°C (62°F), an average of 25°C (78°F), and peak temperatures soaring up to 37°C (99°F). The month is also much wetter, receiving 348 mm (13.7 in) of precipitation over 18 days, coupled with higher humidity at 89%. For more details on the June weather specifics, check out Hangzhou weather in June.
January and July present stark contrasts in weather. In January, temperatures can plunge to a minimum of -9°C (16°F), with an average of 6°C (43°F) and occasionally reaching up to 24°C (75°F). This month experiences about 79 mm (3.1 in) of precipitation over nine days, accompanied by a relatively moderate humidity level of 70%. In stark contrast, July boasts a much warmer climate with minimum temperatures around 22°C (71°F), an average of 29°C (85°F), and highs soaring to 41°C (106°F). This summer month is notably wetter, with precipitation totaling 233 mm (9.2 in) across 17 days, and humidity rises significantly to 93%. For those interested in the specifics of July weather, you can find more details here: Hangzhou weather in July.
In January, the weather is notably cooler, with temperatures ranging from a minimum of -9°C (16°F) to a maximum of 24°C (75°F), averaging around 6°C (43°F). This month experiences about 79 mm (3.1 in) of precipitation over 9 days and maintains a humidity level of 70%. In contrast, August is characterized by much warmer conditions, featuring temperatures that range from a minimum of 18°C (65°F) to a scorching maximum of 40°C (103°F), averaging at 30°C (86°F). The precipitation in August is significantly higher at 163 mm (6.4 in) spread across 14 days, with humidity levels rising to 91%. For a deeper look into the specific weather patterns in August, you can visit Hangzhou weather in August.
In January, the weather is quite chilly with temperatures ranging from a minimum of -9°C (16°F) to a maximum of 24°C (75°F), averaging around 6°C (43°F). The month experiences around 79 mm (3.1 in) of precipitation over approximately 9 days, along with a humidity level of 70%.
In contrast, September brings much warmer weather, with temperatures starting at a minimum of 16°C (62°F) and peaking at 36°C (98°F), averaging about 26°C (78°F). This month sees an increase in precipitation to 133 mm (5.2 in) across about 13 days, accompanied by a slightly higher humidity level of 81%.
For more detailed information, you can explore Hangzhou weather in September.
In January, temperatures can drop to a minimum of -9°C (16°F), with an average high of 24°C (75°F), indicating a significant temperature range throughout the month. This winter month experiences about 79 mm (3.1 in) of precipitation over approximately 9 days, accompanied by a humidity level of 70%. In contrast, October brings milder conditions with minimum temperatures around 9°C (48°F) and average highs reaching 35°C (95°F). While October has lower total precipitation at 56 mm (2.2 in) over just 6 days, the humidity is slightly higher at 80%. For more detailed information, you can check Hangzhou weather in October.
In January, temperatures can drop significantly, with minimums reaching as low as -9°C (16°F) and an average of 6°C (43°F), while highs can rise to 24°C (75°F). This month also sees around 79 mm (3.1 in) of precipitation over nine days, combined with a relative humidity of 70%. In contrast, November experiences milder weather, with temperatures ranging from a minimum of 1°C (35°F) to an average of 14°C (58°F), peaking at 31°C (89°F). The precipitation is somewhat less at 60 mm (2.4 in) across the same number of rainy days, but humidity is slightly higher at 82%. For more detailed insights, you can check Hangzhou weather in November.
In comparing the weather of January and December, January tends to be colder, with minimum temperatures dropping to -9°C (16°F), while December has a milder minimum of -4°C (25°F). The average temperature in January is slightly lower at 6°C (43°F) compared to December’s 8°C (47°F). Additionally, January experiences more precipitation at 79 mm (3.1 in) over 9 days, whereas December sees 66 mm (2.6 in) over 8 days. Humidity levels are also higher in December at 77%, compared to January's 70%. For a detailed look at December weather in Hangzhou, check out Hangzhou weather in December.
In January, Hangzhou experiences a unique blend of winter chill and fleeting warmth, setting it apart from the milder temperatures of other months. While daytime highs can reach a comfortable 24°C, the average temperature dips significantly, making the experience feel much cooler. With precipitation making its presence known on about nine days, this month tends to be wetter than the dryer late spring and summer months. Coupled with a humidity level of 70%, the weather in January can feel quite damp and brisk. For those interested in a more detailed overview of the area's climatic nuances, be sure to explore Hangzhou Climate.