January Weather in Hongkou, China

Last updated: August 21, 2025

January in Hongkou, China offers a captivating blend of winter chill and mild days. Average temperatures hover around 6°C (44°F), with daytime highs reaching up to 22°C (71°F) and nighttime lows dipping to a brisk -8°C (19°F). Visitors can expect approximately 55 mm (2.2 in) of precipitation distributed over six days, contributing to the area's characteristic 70% humidity. This month showcases a unique climatic tapestry, offering a refreshing yet cool atmosphere that beautifully contrasts the vibrant culture of Hongkou.

January Temperature in Hongkou

In January, temperatures in Hongkou, China present a significant chill, with a minimum dipping to -8°C (19°F), contrasting sharply with a pleasant maximum of 22°C (71°F). The average temperature hovers around 6°C (44°F), offering a glimpse of the winter season's bite and its accompanying brief warmth during the day. This trend of fluctuating temperatures continues into February, where lows rise slightly to -3°C (27°F), and the emergence of spring is hinted at with a higher average of 7°C (45°F). As the year progresses into March and April, the weather starts to warm gradually, paving the way for more consistent and comfortable temperatures. By the time we reach April, the average rises to a balmy 16°C (61°F) with highs reaching 31°C (87°F), showcasing a definitive shift toward milder days. Thus, January marks a stark contrast to the approaching warmth of spring, suggesting a season of transition that enthralls both residents and visitors alike.

January Weather in Hongkou: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Hongkou, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hongkou, 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).
JanFebMarAprMayJunJulAugSepOctNovDec434553617076838578685947
Data source: Temperature data for Hongkou generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in Hongkou

January in Hongkou, China, brings an average precipitation of 55 mm (2.2 in) over approximately 6 rain-soaked days. This modest start to the year sets the stage for a gradual increase in rainfall, with February seeing a slight rise to 60 mm (2.4 in), and further escalation as the months progress. By the time spring rolls around, March anticipates a significant jump to 83 mm (3.3 in) across 12 days of precipitation, highlighting a marked trend toward wetter weather. As the late spring and summer months arrive, Hongkou experiences its peak rainfall, culminating in July with a striking 250 mm (9.8 in) over 16 days, demonstrating a dynamic and evolving climate pattern. This trend underscores a clear transition from the drier, cooler winter months to a season of abundant moisture, essential for the region's verdant landscapes.

January Precipitation Trends in Hongkou

The chart displays monthly precipitation patterns in Hongkou, 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 Hongkou, January typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec55608372117201250167177695150
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

January Humidity in Hongkou

In January, Hongkou experiences a humidity level of 70%, marking the beginning of an upward trend that continues into the following months. As the year progresses, humidity steadily rises, reaching 73% in February and climbing to a peak of 93% in July. This gradual increase highlights the region's transition into its more humid summer months. Interestingly, August sees a slight drop to 91%, but September brings a significant decrease to 81%, signaling the onset of a drier autumn. By December, humidity relaxes further to 77%, wrapping up the year on a more comfortable note. Overall, the data illustrates a clear seasonal pattern where humidity peaks in mid-year and subsides towards the winter.

January Average Humidity in Hongkou

This chart illustrates the average monthly humidity levels in Hongkou, 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 Hongkou is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec70%73%81%87%87%89%93%91%81%80%82%77%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Hongkou

In January, Hongkou experiences a moderate UV Index of 5, with a burn time of just 30 minutes. This trend marks the beginning of a gradual increase in UV exposure that peaks during the warmer months. As February rolls in, the index rises to 6, indicating a shift to high exposure. By March, the UV Index escalates to 8, classified as very high, and burn times drop significantly to 15 minutes. This pattern continues into the summer, where the index reaches its maximum of 12 in July, showcasing extreme UV levels and a precarious 10-minute burn time. Fortunately, as the year closes, the UV gradually declines, hitting 4 in December. This yearly progression emphasizes the importance of protective measures against UV radiation, especially during the peak months. For more detailed information, visit the Hongkou UV Index.

Maximum UV Index Levels in Hongkou for January

The chart shows the monthly maximum UV Index (UVI) for Hongkou 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 Hongkou typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec568101011121111864
Data source: Hongkou 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 Hongkou

In Hongkou, China, January sets the tone for the year with a modest 157 hours of sunshine, gradually giving way to a brighter February with 211 hours. As spring approaches, daylight becomes more generous, peaking in April at 267 hours before reaching the sunniest months of summer. June and July bask in an impressive 274 and 301 hours, respectively, showcasing the region's vibrant warmth. August continues this trend, adding 318 hours, making it the sunniest month of the year. As autumn descends, sunshine hours gradually decline, with September at 260 hours and a steady tapering through the final months, reflecting the cyclical nature of light and warmth in Hongkou. Overall, the transition from winter's brief daylight to summer's abundance highlights the ebb and flow of sunshine throughout the year.

Monthly Sunshine Duration in Hongkou: January Highlighted

The January sunshine duration represents the total number of hours Hongkou 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.
JanFebMarAprMayJunJulAugSepOctNovDec157h211h244h267h290h274h301h318h260h245h224h214h
Data source: Hongkou January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Hongkou During January

In January, Hongkou experiences a moderate likelihood of sunny weather, with a 52% chance of clear skies. This marks a notable peak compared to the months that follow, such as February with a 43% chance and March dropping significantly to 29%. The sunny tendencies resume slightly in the autumn months, particularly November at 57% and December at 64%, suggesting a seasonal shift toward increased sunshine as the year concludes. Overall, while January offers reasonable sunshine opportunities, the trend reveals a striking contrast with neighboring months, highlighting it as a prime time for outdoor activities before the clouds of early spring settle in.

Percentage of Sunny Days in January in Hongkou

The chart illustrates the percentage of sunny days in Hongkou 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 Hongkou experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec53%43%29%33%29%23%17%34%45%43%57%64%
Data source: Hongkou January chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Hongkou in January

In Hongkou, China, January greets its residents with a crisp 10 hours of daylight, setting the stage for the gradual increase as winter gives way to spring. As the calendar flips to February, daylight extends to 11 hours, making way for the first signs of a brighter season ahead. March and April continue this upward trend, both offering 11 and 12 hours of daylight, respectively, inviting the vibrant colors of spring into daily life. By May, 13 hours of daylight allow for longer afternoons, which peak in June at an impressive 14 hours—the longest stretch of the year. However, as summer transitions into autumn, daylight begins to wane, slipping back to 13 hours in July and August, and then tapering to 12 hours in September. The pattern then cycles back, with October and November returning to 11 and 10 hours of daylight, and December mirroring January once more. This rhythmic dance of daylight hours highlights the seasonal shifts in Hongkou, reflecting the changing moods and activities of its inhabitants throughout the year.

Average Daylight Hours in Hongkou for January

The chart illustrates the variation in daylight duration in Hongkou throughout the year, with January highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 21m11h 4m11h 59m12h 55m13h 43m14h 7m13h 55m13h 13m12h 19m11h 23m10h 34m10h 9m
Data source: Hongkou daylight hours, calculated by summing the hours between sunrise and sunset for each day.

January Winds in Hongkou

In Hongkou, China, the January wind presents a steady and calm ambiance, with an average wind speed of 3.7 m/s (8 mph), which remains consistent through February and March. As the seasons transition into spring, the winds slightly soften by April, dropping to 3.6 m/s (8 mph) before returning to the same steady pace in May. Interestingly, the summer months herald a shift, with July experiencing a notable uptick in wind speed to 5.1 m/s (11 mph), creating a refreshing contrast to the milder winds of earlier months. However, as summer yields to autumn and winter, wind speeds gradually decline again, bottoming out at 3.1 m/s (7 mph) by December. This cyclical pattern underscores a dynamic seasonal shift, offering both resilience and variation that characterize Hongkou's climate throughout the year.

Average January Wind Speed in Hongkou

The chart displays monthly wind speed patterns in Hongkou, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.7 m/s3.73.73.63.73.35.13.13.63.83.53.1
Data source: Hongkou January wind data, generated using information from the Copernicus Climate Change Service.

How January Weather in Hongkou Compares to Other Months

Weather in Hongkou varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Hongkou, focusing on differences in temperature, rainfall, humidity, and UV levels.

In January, temperatures in Hongkou range from a chilly minimum of -8°C (19°F) to a comfortable maximum of 22°C (71°F), with an average of 6°C (44°F). The month experiences about 55 mm (2.2 in) of precipitation over approximately 6 days, accompanied by a humidity level of 70%. In contrast, February shows a slight increase in temperatures, with minimums of -3°C (27°F) and highs reaching 24°C (76°F), resulting in an average of 7°C (45°F). Precipitation rises to 60 mm (2.4 in) spread over 8 days, alongside a slight increase in humidity to 73%. For more detailed information, you can check Hongkou weather in February.

In January, the weather tends to be quite chilly, with temperatures ranging from a minimum of -8°C (19°F) to an average of 6°C (44°F), peaking at a maximum of 22°C (71°F). Precipitation is relatively low, with around 55 mm (2.2 in) over approximately six days, and humidity averages around 70%.

In contrast, March experiences a significant warming trend, with temperatures ranging from a minimum of 2°C (37°F) to an average of 12°C (54°F), reaching highs of up to 26°C (79°F). However, it is also wetter with total precipitation of 83 mm (3.3 in) spread across about 12 days, and humidity rises slightly to 81%. This transition from January’s cold crispness to March’s mild days marks a noteworthy shift in the weather. For more details, check out Hongkou weather in March.

In January, the weather is quite chilly, with temperatures ranging from a frigid -8°C (19°F) to a milder 22°C (71°F), and an average of 6°C (44°F). The month sees around 55 mm (2.2 in) of precipitation across 6 days, accompanied by a humidity level of 70%.

In contrast, April brings a noticeable warming trend, with minimum temperatures rising to 5°C (42°F) and maximums reaching 31°C (87°F), leading to an average of 16°C (61°F). While precipitation increases slightly to 72 mm (2.8 in) over 9 days, the humidity also climbs to 87%. For a detailed look at the April climate, visit Hongkou weather in April.

January and May present starkly contrasting weather patterns. In January, temperatures can dip as low as -8°C (19°F) but typically average around 6°C (44°F), with a maximum reaching 22°C (71°F). The month sees moderate precipitation at 55 mm (2.2 in) across about six days, accompanied by a humidity level of 70%. In contrast, May experiences a significant warmth boost, with temperatures ranging from a minimum of 12°C (53°F) to a maximum of 34°C (94°F) and an average of 21°C (71°F). Precipitation in May totals 117 mm (4.6 in) over ten days, and humidity rises to 87%. For a more detailed look at May weather, you can visit Hongkou weather in May.

In January, the weather is notably colder, with temperatures ranging from a minimum of -8°C (19°F) to a maximum of 22°C (71°F) and an average of 6°C (44°F). The month experiences relatively low precipitation, totaling 55 mm (2.2 in) over just six days, and maintains a humidity level of 70%. In contrast, June brings much warmer conditions, with temperatures varying from a minimum of 18°C (65°F) to a maximum of 36°C (96°F) and an average of 25°C (76°F). This month sees significantly higher precipitation, accumulating 201 mm (7.9 in) over 15 days, coupled with increased humidity at 89%. For more details, visit Hongkou weather in June.

In January, the weather is quite chilly, with temperatures ranging from a minimum of -8°C (19°F) to a maximum of 22°C (71°F), and an average temperature of about 6°C (44°F). The month experiences moderate precipitation, totaling 55 mm (2.2 in) over roughly six days, and the humidity hovers around 70%. In stark contrast, July brings much warmer conditions, with a minimum of 20°C (69°F) and soaring highs of up to 39°C (102°F), leading to an average temperature of 29°C (84°F). Rainfall significantly increases during this summer month, accumulating to 250 mm (9.8 in) over 16 days, while the humidity rises dramatically to 93%. For more detailed information, check out Hongkou weather in July.

January and August present strikingly different weather conditions. In January, temperatures can plunge to a minimum of -8°C (19°F) and generally hover around an average of 6°C (44°F), with a maximum of 22°C (71°F). The month experiences relatively low precipitation, totaling 55 mm (2.2 in) over about 6 days, accompanied by a humidity level of 70%. In contrast, August sees a significant rise in temperatures, with minimums of 20°C (69°F) and average highs reaching 29°C (85°F), peaking at a scorching 38°C (100°F). Precipitation increases substantially, measuring 167 mm (6.6 in) over approximately 15 days, alongside a higher humidity level of 91%. For a detailed look at summer conditions, check Hongkou weather in August.

January and September present starkly contrasting weather conditions. In January, temperatures can drop to a chilly minimum of -8°C (19°F), with an average of 6°C (44°F) and a maximum reaching 22°C (71°F). The month sees about 55 mm (2.2 in) of precipitation over approximately 6 days, while humidity rests at around 70%. In contrast, September boasts much warmer temperatures, with a minimum of 17°C (63°F), an average of 25°C (78°F), and highs soaring to 35°C (94°F). This month experiences significantly more rainfall, totaling 177 mm (7.0 in) over 13 days, and higher humidity at 81%. For more detailed insights, you can check out Hongkou weather in September.

January and October present quite a contrast in weather conditions. January sees lower temperatures, with a minimum of -8°C (19°F) and an average of 6°C (44°F), while October boasts milder temperatures, ranging from a minimum of 10°C (51°F) to an average of 20°C (68°F). Additionally, October typically reaches warmer highs of up to 31°C (89°F), compared to January's maximum of 22°C (71°F). Precipitation is slightly higher in October, with 69 mm (2.7 in) over 7 days, compared to January's 55 mm (2.2 in) over 6 days. The humidity in October also rises to 80%, compared to January's 70%. For more details, you can check Hongkou weather in October.

In January, temperatures fluctuate more dramatically, with a minimum of -8°C (19°F) and a maximum of 22°C (71°F), averaging around 6°C (44°F). This month experiences slightly higher humidity at 70% and moderate precipitation of 55 mm (2.2 in) over about 6 days. In contrast, November presents a milder climate, with minimum temperatures of 2°C (37°F) and maximums reaching 27°C (81°F), averaging a comfortable 15°C (59°F). The humidity in November is higher at 82%, and it sees a similar amount of rainfall, totaling 51 mm (2.0 in) over approximately 7 days. For more detailed information, check out Hongkou weather in November.

In comparing the weather between January and December, January experiences slightly colder temperatures, with a minimum of -8°C (19°F) and an average of 6°C (44°F), while December's minimum is milder at -5°C (22°F) and an average of 8°C (47°F). Both months feature similar maximum temperatures, with January peaking at 22°C (71°F) and December reaching a high of 20°C (69°F). January sees about 55 mm (2.2 in) of precipitation over 6 days, while December has a bit less, with 50 mm (2.0 in) spread over 8 days. Additionally, December has higher humidity at 77%, compared to January's 70%. For more details on December weather trends, you can visit Hongkou weather in December.

Compare Hongkou's Climate with Cities Worldwide

Conclusion: What to Expect From January Weather in Hongkou

January in Hongkou offers cool temperatures that stand in stark contrast to the milder months of spring and summer. With average highs hovering around 22°C (71°F) and chilling lows dipping into the negative, this month is a reminder of winter's grasp. Precipitation is moderate, bringing about 55 mm (2.2 in) across six days, while humidity levels reach 70%, creating a crisp, refreshing atmosphere. This combination of elements makes January a unique and often brisk month in the year. For a deeper understanding of how the weather shapes life in this vibrant district, explore Hongkou Climate.