Last updated: August 21, 2025
January in China and Japan offers a blend of invigorating winter temperatures and rich atmospheric conditions. With maximums reaching 23°C (74°F) and a comfortable average of 18°C (64°F), the weather is generally mild, yet a minimum of 12°C (53°F) brings a refreshing chill. Visitors can expect around 105 mm (4.1 in) of precipitation over the month, spanning approximately 10 days, contributing to a humidity level of 71%. This combination creates a unique winter experience, perfect for exploring the diverse landscapes and vibrant cultures of these two stunning countries.
In January, temperatures in China and Japan reflect a mild winter, with minimums reaching 12°C (53°F) and average highs around 18°C (64°F), peaking at 23°C (74°F). This trend of stable warmth continues into February, where temperatures slightly dip, yet remain comfortable, indicating a gradual transition towards spring. By March, the weather warms further, showcasing an increase in minimum temperatures to 14°C (57°F), while average highs of 24°C (75°F) hint at the approaching warmth of spring. As the months progress into April and May, the warmth intensifies, with temperatures soaring to a maximum of 27°C (80°F) in May, painting a picture of a region that shifts gracefully from winter's chill to summer's embrace. This gradual temperature rise illustrates a clear trend of increasing warmth, culminating in the sweltering heat of July and August, when average highs stagnate around 28°C (83°F) to 30°C (87°F). In sum, January serves as a gentle reminder of the seasonal cycle, transitioning into the vibrant warmth that characterizes the subsequent months.
In January, China and Japan experience an average precipitation of 105 mm (4.1 in), accompanied by about 10 rainy days, setting a tone for the winter months. This moderate rainfall often gives way to a gradual increase in precipitation as the year progresses, with February seeing a slight rise to 113 mm (4.5 in) over 13 days of rain. As spring approaches, March brings an even higher total of 138 mm (5.5 in), indicating a clear trend of increasing moisture, contributing to the region's lush landscapes. The rainfall peaks dramatically in June, reaching a staggering 403 mm (15.9 in) across 20 days, showcasing a seasonal shift towards the summer monsoon, while the drier months return in the autumn. This pattern highlights the dynamic climatic variations of the region, emphasizing the transition from the drier winter to the wetness of early summer.
January in China and Japan sees an average humidity level of 71%, marking the beginning of a steadily increasing trend that reaches its peak in the summer months. As the year progresses, humidity gradually rises, hitting 76% in March and escalating to a notable 86% in June and July. This high level of moisture persists through August, before slightly declining in the fall months. By the end of the year, humidity decreases to 75% in December, suggesting a seasonal rhythm where the winter months start off drier, ultimately paving the way for a lush, humid summer that characterizes the region's climate.
In January, the UV Index in China and Japan stands at a moderate 7, placing it in the high exposure category with a burn time of 25 minutes. As winter transitions into early spring, the UV levels intensify significantly; by February, the index rises to 8, signaling a shift towards very high risk, reducing burn time to just 15 minutes. This gradual increase continues through the spring and summer months, where the UV Index peaks at a striking 13 from May to September, characterized as extreme with a swift burn time of only 10 minutes. By October, the index dips to 9, returning to a very high category before settling back to 6 in December, when the risk moderates once more. Staying informed about these UV trends is crucial for safe exposure. For detailed insights, check the China UV Index.
UV Risk Categories
In January, China and Japan emerge from the winter shadows, basking in 149 hours of sunshine. As the months progress, sunlight becomes more abundant, reaching a delightful peak in July and August with 315 and 318 hours, respectively. This trend reflects a gradual ascent, where each month beckons longer days that invite outdoor exploration and vibrant festivals. By May, the sunshine surpasses 298 hours, marking the transition into a lively summer atmosphere. Even as autumn approaches, with September and October offering 292 and 272 hours, the sun continues to shimmer, wrapping both nations in warmth before winter's return in November and December, which still boast a respectable 229 and 192 hours of daylight. Overall, the progression of sunlight hours throughout the year showcases a rhythmic dance of brightness, a testament to the changing seasons and the joyful embrace of nature across these captivating countries.
In January, the likelihood of sunny weather in China and Japan stands at a modest 23%, marking it as one of the least sunny months of the year. However, as winter cedes to spring, the chances of sunshine begin to rise appreciably, with February seeing a jump to 42%. This upward trend continues into March and April, where the likelihood reaches 44% and 39%, respectively. Interestingly, May sees a dip back to 25%, likely due to changing seasonal patterns, before sunny days become increasingly frequent as the year progresses. Notably, September emerges with the highest probability of sunshine at 58%, showcasing a clear shift towards more favorable weather as summer transitions into autumn. Overall, the data reflects a dynamic climate, with January serving as the low point for sunshine, while the budding months promise brighter skies ahead.
In January, both China and Japan experience 10 hours of daylight, setting the tone for a gradual shift towards longer days. As the calendar turns to February, daylight increases to 11 hours, reflecting the early whispers of spring. This trend of elongating days continues into March and April, where residents enjoy 11 to 12 hours of daylight, invigorating a sense of renewal. The peak arrives in May and sustains through the summer months of June, July, and August, offering a lush 13 hours of sunlight, ideal for outdoor activities and celebrations. However, as autumn approaches, daylight begins its descent, retreating back to 12 hours in September, before dropping again to 11 hours in October. By November and December, the cycle completes itself as daylight dwindles to 10 hours, echoing the conditions of January and preparing the region for the reflective stillness of winter. This rhythmic ebb and flow of daylight underscores the changing seasons, captivating the essence of life in these two vibrant countries.
In January, the winds in China and Japan pick up with an average speed of 8.1 m/s (18 mph), setting a brisk tone for the month. As winter progresses into February, these gusts slightly ease to 7.8 m/s, but the trend shifts dramatically in the spring, with speeds dropping to 6.1 m/s (14 mph) by March. This seasonal lag continues through May. However, a resurgence occurs in October, matching January's vigor again at 7.8 m/s, while November picks up the pace once more with 8.1 m/s. Thus, the data reveals an intriguing pattern: January and November consistently boast the highest averages, framed by a notable dip in the winds during the heart of spring, making these months stand out in the annual cycle.
Weather in China varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in China, focusing on differences in temperature, rainfall, humidity, and UV levels.
In January, temperatures in the region range from a minimum of 12°C (53°F) to a maximum of 23°C (74°F), with an average of 18°C (64°F). The month experiences about 105 mm (4.1 in) of precipitation over approximately 10 days, coupled with a humidity level of 71%. In contrast, February sees a slight dip in minimum temperatures at 11°C (52°F) but a higher maximum of 24°C (75°F), while still maintaining an average of 18°C (64°F). Precipitation increases to 113 mm (4.5 in) over roughly 13 days, yet humidity remains consistent at 71%. For more detailed information on February weather patterns, visit China weather in February.
In January, the weather features a mild temperature range, with minimums around 12°C (53°F), averages at 18°C (64°F), and maximums reaching 23°C (74°F). However, it experiences considerable precipitation, totaling 105 mm (4.1 in) over 10 days, accompanied by a humidity level of 71%. By March, temperatures see a slight increase, with minimums at 14°C (57°F), averages at 19°C (67°F), and maximums climbing to 24°C (75°F). This month brings even more rain, with 138 mm (5.5 in) over 13 days and higher humidity at 76%. For a deeper look into the weather patterns and conditions, you can check out China weather in March.
In January, the weather is generally milder with temperatures ranging from a minimum of 12°C (53°F) to a maximum of 23°C (74°F). The month experiences an average of 18°C (64°F) and sees about 105 mm (4.1 in) of precipitation over approximately 10 days, accompanied by a humidity level of 71%. In contrast, April brings warmer conditions, with temperatures ranging from a minimum of 15°C (59°F) to a maximum of 25°C (78°F) and an average of 21°C (70°F). The month also experiences increased rainfall, totaling 119 mm (4.7 in) over 12 days, along with higher humidity at 82%. For more specific details about the weather in April, you can refer to China weather in April.
January and May exhibit notable differences in weather patterns. January sees milder temperatures with a minimum of 12°C (53°F) and an average of 18°C (64°F), while May brings warmer conditions, starting with a minimum of 19°C (66°F) and averaging 23°C (74°F). The maximum temperatures in May can reach up to 27°C (80°F), compared to January's peak of 23°C (74°F). Additionally, May experiences more precipitation, with 206 mm (8.1 in) over 13 days, compared to January's 105 mm (4.1 in) across 10 days. The humidity also rises in May to 84%, up from 71% in January, indicating a more humid environment. For further insights into May weather, you can visit China weather in May.
In January, the weather is milder with average temperatures ranging from a minimum of 12°C (53°F) to a maximum of 23°C (74°F), accompanied by 105 mm (4.1 in) of precipitation over about 10 days. The humidity is a moderate 71%. In contrast, June brings significantly warmer conditions, with temperatures starting at a minimum of 22°C (71°F) and peaking at 28°C (83°F). However, June also sees a sharp increase in rainfall, totaling 403 mm (15.9 in) over roughly 20 days, along with higher humidity levels at 86%. This transition highlights the shift from a cool, drier winter to a hot, wet summer. For more detailed information on June weather, visit China weather in June.
In January, the weather is relatively mild, with minimum temperatures around 12°C (53°F) and an average of 18°C (64°F), peaking at a maximum of 23°C (74°F). The month sees about 105 mm (4.1 in) of precipitation over approximately 10 days, coupled with a humidity level of 71%. In contrast, July brings significantly warmer temperatures, with minimums of 26°C (78°F) and averaging around 28°C (82°F), reaching highs of 30°C (87°F). Rainfall increases to 174 mm (6.8 in) over 11 days, and humidity rises to 86%. This makes July noticeably more humid and wet compared to the cooler January. For more detailed information, visit China weather in July.
January and August present a stark contrast in weather conditions. In January, temperatures range from a mild 12°C (53°F) at night to a comfortable 23°C (74°F) during the day, accompanied by an average humidity of 71%. This month experiences about 105 mm (4.1 in) of precipitation over approximately 10 days. In comparison, August is significantly warmer, with nighttime temperatures starting at 25°C (78°F) and reaching a maximum of 30°C (87°F). The humidity also rises to 82%, and rainfall increases to 152 mm (6.0 in) over 14 days, making August a wetter month. For more insights into August weather patterns, check out China weather in August.
January and September offer contrasting weather experiences. In January, temperatures range from a mild minimum of 12°C (53°F) to a maximum of 23°C (74°F), with an average of 18°C (64°F). This month is characterized by a moderate amount of rainfall, totaling 105 mm (4.1 in) spread over about 10 days, accompanied by a humidity level of 71%. In stark contrast, September sees warmer temperatures, with a minimum of 24°C (75°F) and peaking at 30°C (86°F), averaging around 28°C (82°F). However, it also brings increased precipitation, totaling 210 mm (8.3 in) across approximately 20 days, and a higher humidity of 82%. For more details on September weather, visit China weather in September.
In January, the weather is milder, with temperatures ranging from a minimum of 12°C (53°F) to a maximum of 23°C (74°F), and an average of 18°C (64°F). The month experiences about 105 mm (4.1 in) of precipitation over 10 days, coupled with a humidity level of 71%. In contrast, October is notably warmer, with temperatures ranging from a minimum of 21°C (70°F) to a maximum of 29°C (84°F), averaging around 26°C (78°F). Additionally, October sees higher rainfall, with 142 mm (5.6 in) occurring over 13 days and an increase in humidity to 80%. For a closer look at the October climate, you can check China weather in October.
In January, the weather is generally milder with temperatures ranging from a minimum of 12°C (53°F) to a maximum of 23°C (74°F) and an average of 18°C (64°F). It experiences approximately 105 mm (4.1 in) of precipitation over about 10 days, accompanied by a humidity level of 71%. In contrast, November is warmer, featuring a minimum temperature of 18°C (65°F) and rising to an average of 23°C (73°F), with maximum temperatures reaching 27°C (80°F). The month sees slightly more precipitation at 112 mm (4.4 in) across 11 days, along with increased humidity at 79%. For more detailed insights into the weather specifics in November, you can explore China weather in November.
In comparing the weather between January and December, January tends to be slightly cooler, with average temperatures ranging from a minimum of 12°C (53°F) to a maximum of 23°C (74°F), while December features a slightly warmer range of 13°C (56°F) to 25°C (77°F). Additionally, January experiences less precipitation, accumulating 105 mm (4.1 in) over 10 days compared to December's 135 mm (5.3 in) over 15 days. Humidity levels are also slightly lower in January at 71%, compared to December's 75%. For more insights on weather during December, check out China weather in December.
As you explore January weather in China, you'll notice a distinct shift from the warmer months. With average temperatures hovering around 18°C (64°F) and a maximum reaching up to 23°C (74°F), January offers a refreshing coolness that contrasts sharply with the scorching summers. However, this month also experiences higher humidity levels and a notable amount of precipitation, with around 10 rainy days throughout, making the landscape lush and vibrant. If you're planning a visit, prepare for a unique blend of crisp air and occasional rain that sets January apart from the typically hotter and drier seasons. Discover more about the contrasting weather patterns throughout the year at China Climate.