Last updated: August 21, 2025
In Kumamoto, Japan, January ushers in a crisp yet mild climate, with maximum temperatures reaching 17°C (63°F) and an average of 6°C (44°F). The chill can dip as low as -3°C (27°F), inviting cozy layers for outdoor adventures. January also sees 63 mm (2.5 in) of precipitation over the course of 8 days, contributing to the region's lush landscapes. With a humidity level of approximately 75%, the atmosphere carries a refreshing edge, making it a unique time to explore Kumamoto's charming sites amidst its cool, invigorating weather.
In Kumamoto, Japan, January presents a cool, crisp atmosphere as winter takes center stage. With minimum temperatures dipping to -3°C (27°F) and an average hovering around 6°C (44°F), the chill is palpable, but it can feel surprisingly mild when the sun shines, peaking at a comfortable 17°C (63°F). As the month progresses into February, temperatures gradually rise, hinting at the impending arrival of spring. This month boasts slightly warmer lows and a consistent upward trend in daily averages, setting the stage for the increasingly temperate climate that Kumamoto is known for. Overall, January serves as a cool introduction to the seasonal transitions, inviting visitors to experience its stark but beautiful winter charm.
In January, Kumamoto experiences a relatively mild start to the year with average precipitation at 63 mm (2.5 in) over approximately 8 rainy days. This amount lays the groundwork for the steadily increasing rainfall as the seasons progress, with February witnessing a significant leap to 105 mm (4.2 in) across 11 days. By the time spring arrives, March and April bring even more precipitation, reaching 143 mm (5.6 in) and 135 mm (5.3 in), respectively. This trend continues into late spring and summer, with rainfall peaking in July at an impressive 406 mm (16.0 in) over 17 days. Overall, January marks the beginning of a gradual buildup in precipitation, which intensifies as the year unfolds, showcasing Kumamoto's dynamic weather patterns.
January in Kumamoto, Japan, sets the stage for a year of varying humidity levels, starting with a comfortable 75%. As winter transitions to spring, the humidity gradually dips to 71% in both February and March, creating a refreshing atmosphere for outdoor activities. However, the weather quickly shifts as April arrives, bringing a noticeable increase to 78%. This upward trend continues through the warmer months, peaking in the sweltering summer with July’s high of 92% and a close finish in August at 91%. As autumn approaches, humidity begins to ease, settling into the 80s by September and fluctuating gently into winter again by December with 79%. This pattern showcases Kumamoto's rich seasonal shifts, where each month offers its own signature blend of warmth and humidity.
In Kumamoto, Japan, the UV Index in January reaches a moderate level of 5, allowing for a burn time of 30 minutes under direct sunlight. As the year progresses into February, the index increases to 6, signifying a high exposure category, which reduces the safe sun duration to 25 minutes. This upward trend continues dramatically, peaking in the warmer months with the UV Index soaring to 12 by June and remaining consistently high through August. The most extreme readings hit 13 in August, demanding nearly constant vigilance to avoid sunburn. As autumn advances, the index gradually declines, with 8 recorded in October, before dipping to a more manageable 4 in December. To navigate these varying levels of UV radiation effectively, understanding trends is essential for sun safety. For detailed information, visit Kumamoto UV Index.
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In Kumamoto, Japan, January brings an inviting 188 hours of sunshine, setting the stage for a gradual increase in radiant days as the year unfolds. February sees a delightful leap to 237 hours, hinting at the beckoning warmth of spring. March continues this trend, basking in 264 hours of sunlight, while April blossoms further with 280 hours, maximizing daylight as nature awakens. The following months maintain a robust performance, with May and July close behind at 279 and 260 hours respectively. The monsoon season in June drops to 248 hours, but sunshine returns in full force during the sultry summer of August, peaking at an impressive 294 hours. As autumn approaches, sunshine gently tapers off with October at 254 hours, and November and December follow suit with 235 and 225 hours, respectively. Overall, Kumamoto’s sunlight is marked by a vibrant crescendo in the warmer months, inviting residents and visitors alike to revel in its brightness.
In Kumamoto, Japan, the chances of enjoying sunny weather in January stand at 40%, marking a slight dip from the following month's 44%. Interestingly, this trend of fluctuating sunlight continues through the spring, with March seeing a further decrease to 37% before rebounding to 42% in April. After exceeding 50% in November and December, Kumamoto experiences a noticeable drop in sunny days during the early summer months, with July and June revealing the least likelihood of sunshine—at 19% and 22% respectively. This seasonal pattern highlights how January's moderately sunny outlook fits into a broader climate rhythm, balancing between the cool winter and the warmth of spring, suggesting that while sun-filled days may be elusive, they are certainly on the rise as the year unfolds.
In Kumamoto, Japan, the January daylight lasts for approximately 10 hours, setting a tone of gradual change as the year unfolds. As winter nears its end, February and March reveal a gentle increase in daylight, each month enjoying 11 hours of sunlight, hinting at the approaching spring. The days lengthen more noticeably in April, offering 12 hours of daylight, which continues to expand into the vibrant month of May with a full 13 hours. Summer shines brightly in June and July, both basking in 14 hours of daylight, perfect for outdoor adventures. However, as summer transitions to autumn, daylight begins to recede, narrowing to 13 hours in August, then down to 12 hours in September, and finally settling back to 11 hours in October. The cycle of light comes full circle in November and December, where the days dim once again to 10 hours, reminding us of the cyclical nature of the seasons.
In Kumamoto, Japan, the winds of January carry an average speed of 2.6 m/s (6 mph), setting the tone for the month with a gentle breeze that whispers through the winter landscape. Interestingly, the wind picks up slightly in February, reaching 2.9 m/s (7 mph), before settling back to 2.4 m/s (5 mph) in March. This pattern reflects a notable calmness that prevails as spring approaches, with average wind speeds remaining fairly stable in the following months, often hovering around 2.6 m/s (6 mph) in April and December. However, as summer draws near, the winds soften, dipping to their annual low of 1.7 m/s (4 mph) in June, before gradually bouncing back to 2.5 m/s (6 mph) in July. Overall, the wind in Kumamoto exhibits a gentle ebb and flow, with clear seasonal variations that enhance the region's charming climate.
Weather in Kumamoto varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Kumamoto, focusing on differences in temperature, rainfall, humidity, and UV levels.
January and February showcase noticeable differences in weather conditions. In January, temperatures range from a minimum of -3°C (27°F) to a maximum of 17°C (63°F), with an average of 6°C (44°F), alongside a total precipitation of 63 mm (2.5 in) over 8 days and a humidity level of 75%. In contrast, February brings slightly warmer temperatures, with a minimum of -2°C (29°F), an average of 7°C (45°F), and a maximum of 19°C (66°F). However, it also sees an increase in precipitation to 105 mm (4.2 in) across 11 days, along with a slight decrease in humidity to 71%. For more detailed insights, you can check out Kumamoto weather in February.
In January, Kumamoto experiences cooler temperatures, with a minimum of -3°C (27°F) and an average of 6°C (44°F), peaking at 17°C (63°F). The month is relatively dry, with 63 mm (2.5 in) of precipitation over 8 days and a humidity level of 75%. Conversely, March sees a noticeable warming trend, with temperatures ranging from a minimum of 1°C (34°F) to an average of 11°C (52°F), reaching a maximum of 22°C (72°F). However, it is also wetter, accumulating 143 mm (5.6 in) of precipitation across 14 days and a slightly lower humidity of 71%. For more details on the specific weather conditions in March, you can visit Kumamoto weather in March.
In comparing the weather between January and April, it is evident that April brings a notable increase in warmth. While January experiences temperatures ranging from a chilly -3°C (27°F) to a mild 17°C (63°F), April showcases a much more temperate range, with minimums of 3°C (38°F) and maximums peaking at 26°C (79°F). Additionally, April sees higher precipitation levels at 135 mm (5.3 in) over 9 days, compared to January’s 63 mm (2.5 in) over 8 days. The humidity also rises slightly in April to 78%, from January's 75%. For more detailed information on April weather, visit Kumamoto weather in April.
In January, the weather is quite cool, with temperatures ranging from a chilly -3°C (27°F) to a mild 17°C (63°F), averaging around 6°C (44°F). The month experiences about 63 mm (2.5 in) of precipitation over 8 days, coupled with a humidity level of 75%. In contrast, May brings much warmer conditions, with temperatures soaring from a minimum of 8°C (46°F) to a maximum of 28°C (83°F), averaging 19°C (67°F). However, it is also wetter, receiving 207 mm (8.1 in) of precipitation on 12 days and an increase in humidity to 84%. For more details on the weather in May, you can visit Kumamoto weather in May.
In January, the weather in Kumamoto is quite chilly, with average temperatures ranging from a minimum of -3°C (27°F) to a maximum of 17°C (63°F). The month experiences around 63 mm (2.5 inches) of precipitation over approximately 8 days, with humidity levels around 75%. In contrast, June brings much warmer temperatures, with averages between 15°C (58°F) and 30°C (87°F). This month sees significantly higher rainfall, accumulating about 280 mm (11.0 inches) over 15 days, along with increased humidity levels of 86%. For more detailed information, you can visit Kumamoto weather in June.
January and July in Kumamoto display a stark contrast in weather conditions. In January, temperatures range from a chilly minimum of -3°C (27°F) to a mild maximum of 17°C (63°F), with an average of 6°C (44°F). This month sees moderate precipitation of 63 mm (2.5 in) over about 8 days, accompanied by a humidity level of 75%. Conversely, July is characterized by significantly warmer temperatures, with a minimum of 18°C (64°F) and a maximum soaring to 34°C (93°F), averaging at 26°C (79°F). The summer month is much wetter, experiencing a hefty 406 mm (16.0 in) of rain over 17 days, coupled with high humidity at 92%. This notable difference illustrates the seasonal variability in Kumamoto’s climate, making Kumamoto weather in July especially humid and rainy compared to the cold and relatively dry January.
January and August in Kumamoto showcase contrasting weather patterns. In January, temperatures range from a chilly -3°C (27°F) to a mild 17°C (63°F), with an average of 6°C (44°F). The month sees about 63 mm (2.5 in) of precipitation over eight days, accompanied by a relatively high humidity of 75%. In stark contrast, August boasts much warmer temperatures, with lows around 19°C (67°F) and highs reaching up to 34°C (94°F), averaging 27°C (82°F). Precipitation increases significantly to 238 mm (9.4 in) over 14 days, and humidity also rises to 91%. For more insights on the weather, visit Kumamoto weather in August.
January and September present striking contrasts in weather. In January, temperatures are relatively cool, ranging from a minimum of -3°C (27°F) to a maximum of 17°C (63°F), with an average of 6°C (44°F). This month experiences about 63 mm (2.5 inches) of precipitation over 8 days, accompanied by a humidity level of 75%. In contrast, September brings warmer weather, with temperatures ranging from a minimum of 14°C (57°F) to a scorching maximum of 34°C (93°F) and an average of 24°C (76°F). This month is also wetter, with 171 mm (6.7 inches) of rainfall spread across 14 days and a higher humidity level of 84%. For more detailed insights on September weather, you can check Kumamoto weather in September.
In January, the weather in Kumamoto is quite chilly, with temperatures ranging from a minimum of -3°C (27°F) to a maximum of 17°C (63°F), and an average temperature of 6°C (44°F). The month typically sees about 63 mm (2.5 in) of precipitation over 8 days, with a humidity level of 75%. In contrast, October brings much warmer weather, featuring temperatures that range from a minimum of 9°C (49°F) to a maximum of 30°C (87°F), with an average of 19°C (67°F). Precipitation increases in October to 117 mm (4.6 in) over 9 days, along with a slight rise in humidity to 83%. For further details, check out Kumamoto weather in October.
January and November present distinct weather patterns, reflecting the transition from winter to late autumn. In January, the temperatures range from a chilly minimum of -3°C (27°F) to a comfortable maximum of 17°C (63°F), with an average temperature of 6°C (44°F). Precipitation is moderate at 63 mm (2.5 in) over about 8 days, and humidity hovers around 75%. In contrast, November offers milder temperatures, with a minimum of 2°C (36°F) and a maximum reaching 24°C (76°F), resulting in a more pleasant average of 13°C (56°F). The month sees slightly more precipitation at 76 mm (3.0 in) over 9 days, accompanied by higher humidity at 81%. For a more detailed look at the weather specifics, check out Kumamoto weather in November.
In January, temperatures in Kumamoto range from a minimum of -3°C (27°F) to a maximum of 17°C (63°F), with an average of 6°C (44°F). The month receives about 63 mm (2.5 in) of precipitation over approximately 8 days, and humidity averages around 75%. In contrast, December experiences milder weather, with temperatures fluctuating between 0°C (32°F) and 22°C (71°F), leading to an average of 8°C (47°F). December is also wetter, with 84 mm (3.3 in) of precipitation over 9 days and slightly higher humidity at 79%. For a detailed look at December's weather, visit Kumamoto weather in December.
January in Kumamoto presents a unique weather experience compared to other months. With temperatures peaking around 17°C (63°F) but often averaging around a cooler 6°C (44°F), it’s a time where chilly days can feel quite crisp, especially when nighttime lows dip to -3°C (27°F). The 75% humidity adds to the brisk feel, and although the city sees about 63 mm (2.5 in) of rainfall over roughly 8 days, these conditions make January distinctively different from the warmth of the spring and summer months. For more insights on how Kumamoto's climate shapes your travel experience, check out Kumamoto Climate.