Last updated: August 21, 2025
In September, Hakuba, Japan experiences a dynamic climate marked by a maximum temperature of 29°C (85°F) and a comfortable average of 18°C (65°F). As the month progresses, temperatures can dip to a minimum of 8°C (46°F), signaling the gradual transition into fall. This period also brings significant precipitation, with approximately 324 mm (12.7 in) over 22 days, contributing to the area's lush landscapes. With humidity levels around 89%, September in Hakuba offers a blend of warm days and crisp evenings, perfect for outdoor adventures amidst stunning natural beauty.
September in Hakuba, Japan, marks a delightful transition as summer gracefully yields to autumn. The temperatures during this month experience a warm embrace, with lows averaging around 8°C (46°F) and pleasant daytime highs reaching up to 29°C (85°F). This marks a notable shift from the oppressive summer heat, offering a perfect climate for outdoor activities and exploration. The average temperature settles at a comfortable 18°C (65°F), inviting both locals and tourists to enjoy the stunning landscapes adorned with the first hints of fall foliage. As the month progresses, the cooler evenings hint at the approaching winter, and the vibrant ambiance of Hakuba evolves into a picturesque autumn backdrop, making September an enchanting time to visit this beautiful region.
September in Hakuba, Japan, experiences a significant transition, characterized by a precipitation total of 324 mm (12.7 in) over 22 days. This marks a continued trend of high rainfall as the summer draws to a close, following the peak of 510 mm (20.1 in) in July. Compared to the wetter months preceding it, September sees a decrease in rain, yet it still features substantial rainfall, highlighting the region's lush, green landscapes. As autumn approaches, the precipitation amounts gradually taper down, setting the stage for the crisp, clear days of October, which averages 283 mm (11.1 in). The consistent rainfall in September plays a crucial role in replenishing local ecosystems, paving the way for a vibrant autumn in the breathtaking Japanese Alps.
In September, Hakuba experiences a notable shift in humidity, measuring at 89%, which reflects a slight decrease from the peak levels of 92% during the hot summer months of July and August. As the warmth of summer gives way to the cool embrace of early autumn, this drop signals a transition toward drier conditions. Throughout the year, humidity levels in Hakuba generally remain high, peaking in the summer and gradually tapering off as the seasons change. Notably, September maintains a comfortable balance, remaining higher than the spring months but lower than the sultry summer, making it an ideal time for outdoor activities amidst the beautiful, temperate landscape.
As summer transitions to autumn, September in Hakuba, Japan marks a noticeable shift in the UV Index, reflecting a gradual decrease after a peak during the summer months. With a UV Index of 10, categorized as very high, the risk of harm from unprotected sun exposure remains significant, requiring a burn time of just 15 minutes. This is a slight decline from the extreme conditions experienced in the preceding months, yet it serves as a reminder to stay vigilant. As autumn approaches, it’s essential to adapt your sun protection habits accordingly, ensuring you enjoy the beautiful fall scenery without compromising your skin health. For more insights into UV levels throughout the year, check out the detailed Hakuba UV Index.
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As summer fades into autumn, September in Hakuba offers a delightful transition, showcasing a generous 244 hours of sunshine—a reassuring reminder of the lingering warmth. This month wraps up a spectacular summer, where sunshine peaked in May with 297 hours, gradually receding through the early fall. Interestingly, August held its own at 293 hours, setting a vibrant stage for September's crisp and refreshing days. Unlike the swift decline seen in winter months, autumn seems to retain a comforting brightness, allowing visitors to bask in moderate temperatures and breathtaking seasonal scenery. With October bringing 218 hours, the golden hues of fall invite exploration and adventure, making September a perfect time to experience Hakuba’s natural beauty.
In Hakuba, Japan, September presents a 24% chance of sunny weather, a slight uptick from the dimmer summer months of July and August, which boast only 29% and 19% likelihoods of sunshine, respectively. This month serves as a transition from the warmth of summer to the cooler embrace of autumn, leading to a moderate increase in clear days compared to the earlier months. While September does not shine as brightly as the drier autumn months of October and November, with their chances increasing to 35% and 40%, it still offers a refreshing glimpse of better weather, making it an appealing time for outdoor enthusiasts to explore the vibrant landscapes of Hakuba.
As September unfolds in Hakuba, Japan, the days begin to shorten, offering approximately 12 hours of daylight. This transition marks the end of the summer's longer days, where sunlight peaked at 14 hours in the summer months of June and July. The gradual decrease in daylight starts to hint at the approaching autumn, with daylight slipping back to 11 hours in October and continuing to dwindle as winter approaches. This gradual shift in daylight not only reflects the changing seasons but also enhances the magical scenery of Hakuba, where vibrant fall foliage begins to emerge, painting a stunning landscape for locals and visitors alike.
As September arrives in Hakuba, Japan, the wind whispers a gentle transition from summer's warmth to autumn's embrace. With an average wind speed of 1.4 m/s (3 mph), the breezes remain calm, mirroring the summer months. However, there's a noticeable shift; the winds begin to pick up slightly as the landscape prepares for the vibrant hues of fall. This mild yet refreshing air sets an ideal backdrop for outdoor activities, inviting visitors to explore the breathtaking scenery while enjoying the serene atmosphere. As the season progresses, one can anticipate a gradual increase in wind speeds, reflecting nature's subtle invitation to embrace the changing seasons.
Weather in Hakuba varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Hakuba, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present strikingly different weather conditions. In September, temperatures range from a minimum of 8°C (46°F) to a maximum of 29°C (85°F), creating a warm and pleasant atmosphere with an average of 18°C (65°F). However, it is also a month characterized by high precipitation, receiving 324 mm (12.7 in) of rain over 22 days, combined with a high humidity level of 89%.
In contrast, January experiences much colder temperatures, with a minimum of -13°C (10°F) and a maximum of just 7°C (45°F), averaging -4°C (25°F). The precipitation decreases to 216 mm (8.5 in) over the same 22 days but is typically in the form of snow, contributing to a much drier feel with a humidity level of 88%. For those interested, more details can be found at Hakuba weather in January.
In September, the weather is significantly milder, with temperatures ranging from a minimum of 8°C (46°F) to a maximum of 29°C (85°F) and an average of 18°C (65°F). The month is quite rainy, experiencing a high level of precipitation at 324 mm (12.7 in) over 22 days, combined with a humidity level of 89%. In contrast, February presents a much chillier climate, with temperatures dropping to a minimum of -15°C (6°F) and peaking at 10°C (50°F), averaging -4°C (26°F). Precipitation is lower at 206 mm (8.1 in) over 21 days, with humidity slightly lower at 86%. For more detailed insights, you can check Hakuba weather in February.
September and March present strikingly different weather patterns. In September, temperatures typically range from a mild 8°C (46°F) at night to a warm 29°C (85°F) during the day, with an average of 18°C (65°F). This month is characterized by significant rainfall, totaling 324 mm (12.7 in) over 22 days, along with high humidity at 89%. In contrast, March experiences much colder temperatures, with nightly lows plunging to -10°C (14°F) and daytime highs reaching only up to 14°C (58°F), averaging just 1°C (34°F). Precipitation in March is lower, at 195 mm (7.7 in) over 19 days, and humidity is slightly less at 81%. For more insights into March weather, check out Hakuba weather in March.
When comparing the weather in September and April, it’s clear that September offers significantly warmer temperatures, with an average of 18°C (65°F) compared to April’s cooler average of 6°C (43°F). September can reach a maximum of 29°C (85°F), while April peaks at 23°C (73°F). In terms of precipitation, September is wetter, receiving 324 mm (12.7 in) over 22 days, compared to April's 214 mm (8.4 in) over 18 days. Additionally, September tends to be more humid, with humidity levels at 89%, whereas April has a lower humidity of 78%. For more specific details on April weather, you can visit Hakuba weather in April.
When comparing the weather in September to that of May, a noticeable difference in temperatures and precipitation emerges. September experiences a wider temperature range, with minimums of 8°C and maximums reaching up to 29°C, resulting in an average of 18°C. In contrast, May sees cooler temperatures, with minimums dropping to 0°C and an average of 13°C, peaking at 26°C. Additionally, September is characterized by higher precipitation levels, totaling 324 mm over 22 days and humidity at 89%, whereas May has less rainfall at 234 mm, spread across 19 days, with a slightly lower humidity of 81%. This variation highlights the transition between the warm late summer and the fresh spring conditions. For more information on May weather, check out Hakuba weather in May.
In comparing the weather between September and June, September generally experiences warmer temperatures, with a minimum of 8°C (46°F) and an average of 18°C (65°F), while June starts slightly cooler with a minimum of 6°C (43°F) and an average of 16°C (62°F). September also has more significant temperature variability, peaking at 29°C (85°F), compared to June, which tops out at 25°C (77°F). While both months see considerable precipitation, September tends to be wetter, with 324 mm (12.7 in) across 22 days, compared to June’s 270 mm (10.6 in) over 20 days. Humidity levels are quite similar, with September at 89% and June at 88%. For those looking to explore the specifics of June weather, visit Hakuba weather in June.
When comparing the weather in September and July, it's clear that September experiences slightly cooler temperatures, with a minimum of 8°C (46°F) and a maximum of 29°C (85°F), while July boasts a warmer minimum of 14°C (58°F) and a maximum of 30°C (87°F). Both months see a fair amount of rainfall, but July is notably wetter with 510 mm (20.1 in) of precipitation over 26 days compared to September's 324 mm (12.7 in) across 22 days. Additionally, humidity levels are marginally higher in July at 92%, compared to 89% in September. For more details on July’s weather, you can check this link: Hakuba weather in July.
In comparing the weather between August and September, we see notable differences in temperature and precipitation patterns. August typically experiences warmer conditions, with an average temperature of 23°C (73°F), peaking at 30°C (87°F). In contrast, September cools down to an average of 18°C (65°F), with maximum temperatures reaching 29°C (85°F).
Precipitation levels also shift, with August receiving slightly more rainfall at 355 mm (14.0 in) over 25 days compared to September's 324 mm (12.7 in) over 22 days. Additionally, humidity remains high in both months, slightly decreasing from 92% in August to 89% in September. For more detailed information on August weather, you can check Hakuba weather in August.
In September, temperatures begin to cool down as summer transitions to autumn, with a minimum of 8°C (46°F), an average of 18°C (65°F), and a maximum of 29°C (85°F). The month is characterized by significant rainfall, totaling 324 mm (12.7 in) over 22 days, coupled with high humidity at 89%. In contrast, October sees a further drop in temperatures, with minimums falling to 2°C (37°F) and an average of 12°C (55°F), while the maximum temperature reaches 26°C (79°F). Although precipitation decreases slightly to 283 mm (11.1 in) over 20 days, humidity remains relatively high at 87%. For more details, you can check Hakuba weather in October.
September and November present stark contrasts in weather. In September, temperatures range significantly from a low of 8°C (46°F) to a high of 29°C (85°F), with an average of 18°C (65°F). The month is characterized by high humidity at 89% and considerable rainfall, totaling 324 mm (12.7 in) over 22 days. In contrast, November experiences much chillier conditions, with temperatures dipping to a minimum of -9°C (17°F) and an average of 6°C (42°F), peaking at 19°C (67°F). Precipitation decreases to 158 mm (6.2 in) over 17 days, and humidity remains relatively lower at 85%. For more details, check out Hakuba weather in November.
In September, the weather is generally mild, with average temperatures ranging from a minimum of 8°C (46°F) to a maximum of 29°C (85°F). The month experiences significant rainfall, totaling 324 mm (12.7 in) over 22 days, coupled with high humidity levels at 89%. In contrast, December features much colder conditions, with temperatures fluctuating between -12°C (11°F) and a maximum of 16°C (61°F), resulting in an average of -1°C (30°F). Although December sees less precipitation at 237 mm (9.3 in) over 23 days, the humidity remains fairly high at 86%. For a more detailed look at the winter climate, check out Hakuba weather in December.
As September unfolds in Hakuba, the weather takes on a unique character, contrasting with the warm summer months and the cooler autumn that follows. With temperatures reaching a maximum of 29°C (85°F), the days remain pleasantly warm, yet the average temperatures settle around a mild 18°C (65°F), creating a comfortable atmosphere for outdoor activities. However, September is also marked by significant rainfall, with precipitation occurring on 22 days and accumulating to 324 mm (12.7 in), resulting in lush landscapes. The high humidity level at 89% adds a certain freshness to the air, making it an ideal time for outdoor adventurers. This transition month is perfect for experiencing the diverse climate of Hakuba, and for a deeper insight into the region’s weather patterns, visit Hakuba Climate.