Last updated: August 21, 2025
In Kusatsu, Japan, October brings a stunning transition into autumn, characterized by a maximum temperature of 26°C (80°F) and a refreshing average of 13°C (55°F). As the leaves begin to change, the minimum temperature can dip to a brisk 1°C (34°F). Expect significant precipitation, with 217 mm (8.5 in) of rain spread over 17 days, creating a lush, vibrant landscape. The air is quite humid, averaging around 87%, contributing to the crisp feel of this enchanting season. Embrace the beauty of autumn in Kusatsu, where nature's colors and cool temperatures meld into an unforgettable experience.
In October, Kusatsu begins to transition from the warmth of summer to the cooler embrace of autumn, characterized by mild temperatures that invite both exploration and relaxation. With a minimum temperature of 1°C (34°F) and an average of 13°C (55°F), the weather remains comfortably brisk, while daytime highs can reach up to 26°C (80°F). This month's temperatures reflect a significant drop from the preceding summer, with an average shift of approximately 6°C (11°F) cooler compared to September. As the days grow shorter and the leaves turn vibrant hues, October offers a perfect backdrop for enjoying Kusatsu's famous hot springs and stunning natural landscapes. The gradual decline in warmth beautifully blends the remnants of summer with the crispness of approaching winter, making it an enchanting time to visit this Japanese gem.
In October, Kusatsu experiences a notable peak in precipitation, with 217 mm (8.5 in) of rain falling over 17 days. This surge marks a significant increase from previous months, particularly following the drier September, which recorded 168 mm (6.6 in). The transition into autumn brings a change in weather patterns, as the region shifts from the peak summer rains of July—with a staggering 278 mm (10.9 in) over 25 days—to a more moderate yet consistent rainfall. This October deluge not only signifies the onset of colder months ahead, but also nourishes the landscape, setting the stage for the stunning autumn foliage that Kusatsu is famed for.
October in Kusatsu, Japan, sees a slight dip in humidity, averaging around 87%. This marks a transition from the high summer months of July and August, which boast a muggy 92% humidity, reflecting the region's warm and moist climate. As autumn settles in, humidity gradually decreases from the peak levels experienced during the summer. The overall trend indicates a gentle decline in moisture from the humid heights of 92% in the heart of summer to a more comfortable yet still humid 87% in October, before settling into the cooler autumn months of November and December, where humidity levels hover around 85% to 86%. This gradual shift creates a refreshing change, inviting locals and visitors alike to enjoy the autumn scenery enveloped in crisp, moist air.
As autumn settles in Kusatsu, Japan, October brings a high UV Index of 7, indicating that while the sun is still bright, the risk of harm from unprotected sun exposure is reduced compared to the peak summer months. With a burn time of 25 minutes, this month encourages residents and visitors to enjoy the outdoors while still taking precautions. The trend from June to September shows an elevated UV Index, peaking at extreme levels of 11, before gradually decreasing in October as temperatures cool. As we move into November and December, the index continues to drop, reflecting a return to more moderate levels and longer burn times. For those planning outdoor activities, it's essential to stay informed about the UV Index to enjoy the beautiful fall days safely. For more detailed information, check out the Kusatsu UV Index.
UV Risk Categories
As October arrives in Kusatsu, Japan, the region embraces a gentle decline in sunshine hours, offering 209 hours of sunlight—a charming contrast to the vibrant energy of summer. Following a peak in sunlit days during the spring and early summer months, October marks a transition towards autumn, yet still retains a generous amount of daylight. This shift is indicative of the overall trend throughout the year, where longer days in mid-spring and early summer gradually give way to shorter, yet still pleasant, autumn afternoons. With its picturesque landscapes adorned in fall colors, October’s softer light creates an inviting atmosphere, perfect for soaking in the natural beauty Kusatsu has to offer.
In October, Kusatsu, Japan experiences a 37% likelihood of sunny weather, marking an interesting shift as autumn settles in. This percentage is a notable increase from the summer months, where the chances of sunshine dip significantly, particularly in June and July with only 20% and 27%, respectively. While October sees a slight bump compared to the sunniest months of the year, such as February and November at 45% and 46%, it still maintains a balance that keeps the crispness of fall alive. As the days grow shorter and cooler, October offers a refreshing opportunity for clear skies, inviting outdoor activities against the backdrop of Kusatsu's stunning autumn foliage.
As autumn unfolds in Kusatsu, Japan, the daylight duration begins to shift, reflecting the seasonal transition. After basking in a generous 14 hours of daylight during the peak summer months, October experiences a gentle decline to 11 hours of sunlight. This gradual reduction signals the approach of winter, following a vibrant spring and summer where longer days enabled outdoor adventures. It’s a time to savor the crisp air and the beautiful autumn foliage against the backdrop of diminishing light, as Kusatsu prepares for the cozy, shorter days of November ahead.
As October arrives in Kusatsu, Japan, a subtle shift in the wind becomes noticeable. With an average wind speed of 1.8 m/s (about 4 mph), October marks a gentle increase from the summer's calm breezes, which hovered below 1.7 m/s. This month serves as a bridge from the warmer months, where wind speeds remain low, toward the cooler winter season, gradually ramping back up to 2.2 m/s in December. This gentle, crisp breeze reflects the transition of nature, framing Kusatsu’s vibrant autumn landscape and inviting tranquil strolls through golden-hued leaves.
Weather in Kusatsu varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Kusatsu, focusing on differences in temperature, rainfall, humidity, and UV levels.
October and January present quite contrasting weather conditions. In October, temperatures can range from a chilly 1°C (34°F) at night to a warm 26°C (80°F) during the day, with an average of 13°C (55°F). This month also sees considerable precipitation, totaling 217 mm (8.5 in) over about 17 days, paired with high humidity at 87%. In stark contrast, January offers a much colder climate, with temperatures dipping as low as -12°C (11°F) and only reaching a maximum of 9°C (49°F), averaging -2°C (29°F). Although January experiences significantly less rainfall, with only 74 mm (2.9 in) over 16 days, humidity remains high at 88%. For more detailed information about the conditions in January, you can check out Kusatsu weather in January.
October and February exhibit distinct differences in weather patterns. In October, temperatures range from a chilly 1°C (34°F) at night to a warm 26°C (80°F) during peak daylight, with an average of 13°C (55°F). The month is characterized by high humidity at 87% and substantial rainfall of 217 mm (8.5 in) over 17 days. In contrast, February experiences much colder temperatures, with a minimum of -11°C (12°F) and a maximum of 17°C (63°F), averaging around -1°C (31°F). While February sees significantly less precipitation, totaling 74 mm (2.9 in) over 14 days, it maintains a similarly high humidity level at 86%. For more insights into February weather, you can visit Kusatsu weather in February.
October and March present distinct weather patterns, each with its own unique characteristics. In October, temperatures range from a chilly 1°C (34°F) at night to a pleasant 26°C (80°F) during the day, averaging 13°C (55°F). The month is marked by high humidity at 87% and significant rainfall, totaling 217 mm (8.5 in) over 17 days. In contrast, March experiences colder conditions, with nighttime temperatures dipping to -8°C (19°F) and daytime highs averaging 21°C (70°F), resulting in an overall average of 4°C (39°F). Despite its milder precipitation of 111 mm (4.4 in) over 14 days, March still maintains an 81% humidity level. For more detailed insights into the weather in this month, check out Kusatsu weather in March.
When comparing October and April weather, we see notable differences in temperature and precipitation patterns. October boasts milder temperatures, with averages around 13°C (55°F) and maximums reaching up to 26°C (80°F). In contrast, April can start quite chilly, with minimums dropping to -5°C (24°F) but can also reach similar highs of 27°C (81°F). Precipitation is heavier in October, totaling 217 mm (8.5 in) over about 17 days, while April sees a more moderate 112 mm (4.4 in) across 15 days, making it a slightly drier month. Additionally, humidity levels are higher in October at 87%, compared to 78% in April, contributing to a different overall feel during these months. For a closer look at April’s specific weather conditions, check out Kusatsu weather in April.
October and May exhibit distinct weather patterns, reflecting the transition from autumn to spring. In October, temperatures range from a chilly 1°C (34°F) at night to a mild 26°C (80°F) during the day, with an average temperature of 13°C (55°F). The month is marked by significant rainfall, totaling 217 mm (8.5 in) over approximately 17 rainy days, and a higher humidity level of 87%. In contrast, May presents a slightly warmer climate, with temperatures fluctuating between 0°C (32°F) and 30°C (87°F), and an average of 15°C (59°F). Precipitation in May is less intense, at 139 mm (5.5 in) across about 16 days, accompanied by a lower humidity of 81%. For more details on May weather, you can visit Kusatsu weather in May.
In comparing the weather of October and June, it is evident that October presents cooler temperatures, with a minimum of 1°C (34°F) and an average of 13°C (55°F), while June enjoys milder conditions, featuring a minimum of 6°C (43°F) and an average of 18°C (65°F). June also reaches a higher maximum temperature of 30°C (87°F) compared to October’s 26°C (80°F), making it feel significantly warmer overall. While both months see a fair amount of rainfall, October is wetter, receiving 217 mm (8.5 in) over 17 days, whereas June has 168 mm (6.6 in) over 18 days. Additionally, humidity levels are quite similar, hovering around 87% in October and slightly higher at 88% in June. For more detailed insights on June's weather, you can check Kusatsu weather in June.
When comparing the weather between October and July, significant differences emerge. October experiences a cooler range of temperatures, with a minimum of 1°C (34°F), an average of 13°C (55°F), and a maximum reaching 26°C (80°F). In contrast, July boasts much warmer temperatures, with a minimum of 14°C (58°F), an average of 22°C (72°F), and a peak of 33°C (91°F). Both months have notable precipitation, but July receives slightly more, with 278 mm (10.9 in) over 25 days, compared to October’s 217 mm (8.5 in) over 17 days. Humidity levels are high in both months, peaking at 87% in October and slightly higher at 92% in July. For a closer look at July’s weather specifics, check out Kusatsu weather in July.
In comparing the weather of October and August, it’s clear that October experiences cooler temperatures, with a minimum of 1°C (34°F) compared to August's minimum of 11°C (52°F). The average temperature in October hovers around 13°C (55°F), significantly lower than August's warmer average of 23°C (74°F). Additionally, August tends to be drier, with 177 mm (7.0 in) of precipitation over 22 days, while October sees increased rainfall, totaling 217 mm (8.5 in) over 17 days. Humidity levels are slightly lower in October at 87%, compared to August's 92%. For more details on August weather, visit Kusatsu weather in August.
In comparing the weather conditions of October and September, we observe a notable drop in temperature as October experiences a minimum temperature of 1°C (34°F), an average of 13°C (55°F), and a maximum of 26°C (80°F). In contrast, September boasts warmer temperatures, with a minimum of 7°C (44°F), an average of 19°C (66°F), and a maximum reaching 29°C (85°F). Precipitation levels also differ between the two months; October sees 217 mm (8.5 in) spread over 17 days, while September has a slightly lower total of 168 mm (6.6 in) over 19 days. Furthermore, humidity remains quite high in both months, with October at 87% and September slightly higher at 89%. For further details, you can refer to Kusatsu weather in September.
In October, the weather is notably warmer, with temperatures ranging from a minimum of 1°C (34°F) to a maximum of 26°C (80°F), and an average temperature of 13°C (55°F). The month is characterized by high humidity at 87% and substantial precipitation, accumulating 217 mm (8.5 in) over 17 days. In contrast, November brings cooler temperatures, with a minimum of -4°C (24°F) and an average of 7°C (44°F), peaking at 20°C (68°F). Precipitation drops significantly to 50 mm (2.0 in) across about 10 days, while humidity remains relatively stable at 85%. For more information, you can visit Kusatsu weather in November.
October and December present notable differences in weather patterns. October typically enjoys milder temperatures, with minimums around 1°C (34°F) and maximums reaching up to 26°C (80°F), while December sees colder conditions, with temperatures dipping to a minimum of -8°C (17°F) and averaging just around 1°C (35°F). Precipitation also varies, with October receiving a hefty 217 mm (8.5 in) over 17 days, compared to December's 76 mm (3.0 in) across 15 days. Despite the drop in rainfall, December maintains a high humidity level of 86%, just slightly below October's 87%. For more specific insights into the weather during this chilling month, check out Kusatsu weather in December.
As October settles in Kusatsu, the weather reveals a distinct shift from the preceding months. The temperatures begin to cool significantly, with average highs dipping to a comfortable 26°C (80°F) and lows sliding down towards chilly 1°C (34°F), making it a time for cozy layers. Rainfall becomes more frequent, contributing to the overall humidity that peaks at 87%, with an average of 217 mm (8.5 in) of precipitation over 17 days. This transitional month marks the onset of autumn, enveloping the town in vibrant foliage and a crisp, refreshing atmosphere. For those intrigued by the nuances of weather in this beautiful location, further details can be found at Kusatsu Climate.