Last updated: August 21, 2025
In September, Yuzawa, Japan experiences a notable shift in weather, characterized by a maximum temperature reaching 33°C (91°F) and an average of 20°C (67°F), while dipping to a minimum of 6°C (43°F) at night. With 140 mm (5.5 inches) of rainfall spread over 16 days, the month is marked by high humidity levels averaging 86%, creating a lush environment that enhances the beauty of the region. Whether you're exploring vibrant autumn colors or enjoying the thermal hot springs, September in Yuzawa offers a unique blend of warmth and refreshment.
In September, Yuzawa's temperatures exhibit a notable transition, offering a comfortable average of 20°C (67°F), with daily highs reaching up to 33°C (91°F). As summer gradually gives way to autumn, the minimum temperature settles at a mild 6°C (43°F), marking a refreshing change from the sweltering heat of August. This month strikes a balance between warmth and the crispness of fall, making it an ideal time for visitors to enjoy outdoor activities amidst the colorful foliage. The shift in climate invites a serene beauty to the landscape, showcasing Yuzawa as not only a winter sports destination but also a pleasant retreat in the early autumn months.
In September, Yuzawa experiences a notable shift in precipitation patterns, with the city receiving 140 mm (5.5 in) of rain spread over 16 days. This marks a decline from the heavy rains of August, which brought 216 mm (8.5 in), while still showcasing a substantial amount of moisture as autumn begins to set in. Coinciding with a moderate drop in overall rainfall, the number of wet days remains similar, suggesting a consistent, if less intense, rainy season. This trend of gradually diminishing rainfall will continue into October, where Yuzawa sees an increase again, highlighting the city's dynamic climate as it transitions towards cooler months.
In September, Yuzawa experiences a noticeable shift in humidity, averaging around 86%—a slight decrease from the peak summer months of July and August, both at 92%. As autumn approaches, the humidity begins to taper off from the highs of summer, but still remains relatively high compared to the earlier months of the year, such as April and March, which hovered around 75% to 77%. This pattern of elevated humidity during the summer months gives way to a gradual decline, setting the stage for the dryer and cooler conditions of fall. Thus, September serves as a bridge in Yuzawa's climate, balancing summer's lingering warmth with the crispness of autumn.
As summer transitions to fall, September in Yuzawa, Japan, maintains a notably high UV Index of 9, indicating a very high level of sun exposure. With a burn time of just 15 minutes, it’s essential for residents and visitors alike to take necessary precautions against UV radiation. This month continues the trend set earlier in the summer, where UV levels peaked at an extreme 11 in August, before slightly easing. Despite the diminishing intensity, the sun's rays remain potent, underscoring the importance of sun safety through protective clothing and sunscreen. As we step into autumn, understanding these trends not only helps in planning outdoor activities but also in making informed decisions about UV protection. For more details, check out the comprehensive guide at Yuzawa UV Index.
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September in Yuzawa, Japan, shines with 255 hours of sunlight, making it one of the sunniest months of the year. As summer transitions into autumn, the sunshine starts to taper off slightly from the peak seen in the previous months, yet it remains abundant compared to the colder winter months. The warm glow of September's sun continues to outshine earlier months like January and February, where hours dwindle to just 153 and 202, respectively. The gradual reduction of sunlight from the summer heights of 296 hours in May and 291 in August marks a seasonal shift, but September still promises plenty of bright days, inviting locals and tourists alike to savor the stunning landscapes and tranquil atmosphere before the winter chill sets in.
In Yuzawa, Japan, September offers a moderate 33% chance of sunny weather, marking a slight improvement from the summer months. This transition reflects a gradual shift as the rainy season wanes, creating favorable conditions for outdoor activities and sightseeing. While not as sunny as the spring months—where April peaks at 39%—September still presents a promising outlook compared to the more overcast summer, particularly August, which drops to 20%. With October closely trailing at 32%, visitors can expect a pleasant mix of warm days and crisp autumn air, perfect for enjoying Yuzawa's stunning landscapes.
As September arrives in Yuzawa, Japan, the daylight gradually begins to wane, offering a transitional feel to the month. With an average of 12 hours of daylight, September reflects a gentle decline from the peak summer months of June and July, during which the sun graced the region with a consistent 14 hours of daylight. This soft descent mirrors the natural rhythm of the seasons, as daylight hours steadily decrease from the vibrant brightness of summer to the cooler embrace of autumn. Following September, daylight continues to diminish into October, where only 11 hours are left, hinting at the approaching winter months. This ebb and flow of sunlight beautifully captures the essence of Yuzawa's seasonal landscape, drawing outdoor enthusiasts to relish the distinct changes in light and atmosphere.
In September, the wind in Yuzawa begins to shift from the more languid summer breezes, with an average speed of 2.4 m/s (5 mph). This gentle increase from the preceding months, notably August's 2.3 m/s, hints at the transition into autumn, where the air becomes crisper and more invigorating. As the season progresses into October, the winds remain relatively stable, hovering around 2.2 m/s, but the subtle change heralds the arrival of cooler temperatures and a vibrant fall landscape. Observing the trends, it's clear that while summer winds tend to wane, September serves as a gentle prelude, setting the stage for the tranquil yet dynamic shifts of the months to come.
Weather in Yuzawa varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Yuzawa, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present starkly contrasting weather conditions. In September, temperatures range from a mild 6°C (43°F) to a warm 33°C (91°F), with an average of 20°C (67°F), making it a month characterized by warmth and high humidity at 86%. However, it also experiences significant precipitation, totaling 140 mm (5.5 in) over roughly 16 days. In contrast, January plunges into the cold, with temperatures dropping to a minimum of -15°C (5°F) and averaging -2°C (29°F), peaking at only 7°C (44°F). The precipitation decreases slightly to 117 mm (4.6 in) spread over 20 days, and humidity is lower at 80%. These differences highlight the seasonal transition from the warmth of late summer to the chill of mid-winter. For more insights on this winter climate, check out Yuzawa weather in January.
September and February present starkly contrasting weather patterns. In September, temperatures range from a minimum of 6°C (43°F) to a warm maximum of 33°C (91°F), with an average of 20°C (67°F), while February sees much colder conditions, with temperatures dropping to a minimum of -15°C (5°F) and peaking at just 10°C (50°F), averaging around -1°C (30°F). Precipitation is significant in both months, with September receiving about 140 mm (5.5 in) over 16 days and February slightly less at 129 mm (5.1 in) across 22 days. Humidity levels are also higher in September at 86%, compared to February's 79%. For more specific insights into February's climate, you can check Yuzawa weather in February.
In September, the weather is notably warmer, with average temperatures around 20°C (67°F) and highs reaching up to 33°C (91°F), while March experiences much colder conditions with an average of 4°C (39°F) and a maximum temperature of 19°C (67°F). Although both months see a fair amount of precipitation, September records slightly more at 140 mm (5.5 in) over 16 days, compared to March's 132 mm (5.2 in) over 17 days. Additionally, September is characterized by higher humidity levels at 86%, whereas March has a more comfortable humidity of 77%. For those interested in knowing more about March conditions, refer to Yuzawa weather in March.
In comparing the weather of September and April, notable differences emerge in temperature and conditions. September typically experiences a wider range of temperatures, with a minimum of 6°C (43°F), an average of 20°C (67°F), and a maximum reaching 33°C (91°F). In contrast, April presents cooler conditions, with temperatures ranging from a minimum of -6°C (22°F) to an average of 8°C (48°F) and a maximum of 24°C (75°F). Both months see considerable precipitation, with September receiving 140 mm (5.5 in) over 16 days, while April has slightly more at 142 mm (5.6 in) across 17 days. Interestingly, humidity levels are higher in September at 86%, compared to April's 75%. For more detailed insights about April weather, you can check out Yuzawa weather in April.
September and May both exhibit mild temperatures, but September tends to be warmer overall. In September, temperatures range from a minimum of 6°C (43°F) to a maximum of 33°C (91°F), with an average of 20°C (67°F). In contrast, May has slightly cooler temperatures, with a minimum of 3°C (38°F) and a maximum of 30°C (86°F), averaging 15°C (59°F). Both months see similar levels of precipitation, with September receiving 140 mm (5.5 in) and May slightly less at 131 mm (5.2 in), though both months experience rainfall on about 16 days. Humidity is slightly higher in September at 86%, compared to May’s 80%. For more details on the weather in May, you can check Yuzawa weather in May.
In comparing the weather of September and June, we see that September tends to be slightly warmer, with average temperatures reaching 20°C (67°F) compared to June's 18°C (65°F). However, both months experience similar minimum temperatures, with September starting at 6°C (43°F) and June at 5°C (41°F). Precipitation levels are relatively close, with September receiving 140 mm (5.5 in) over 16 days, while June has a marginally higher total of 153 mm (6.0 in) across 15 days. Humidity levels remain fairly consistent, with September showing 86% and June slightly higher at 87%. For more detailed insights on June weather, you can check Yuzawa weather in June.
In comparing the weather of September and July, we can see some notable differences. September experiences a minimum temperature of 6°C (43°F) and an average of 20°C (67°F), while July is warmer, with a minimum of 14°C (57°F) and an average of 23°C (73°F). Both months have the same maximum temperature of 33°C (91°F), but September sees significantly less precipitation at 140 mm (5.5 in) over 16 days compared to July's 199 mm (7.8 in) over 18 days. Additionally, humidity levels are slightly lower in September at 86% compared to 92% in July. For more detailed information, check out Yuzawa weather in July.
In comparing the weather of September and August, September offers a wider temperature range with a minimum of 6°C (43°F) and a maximum of 33°C (91°F), leading to an average of 20°C (67°F). In contrast, August has higher temperatures, with a minimum of 12°C (54°F) and a maximum of 35°C (94°F), averaging 24°C (75°F). Additionally, September experiences less precipitation at 140 mm (5.5 in) over 16 days, whereas August sees more significant rainfall with 216 mm (8.5 in) across 17 days. Humidity levels are slightly lower in September at 86% compared to August's 92%. For a more detailed look at August conditions, you can visit Yuzawa weather in August.
September and October present notable differences in weather patterns. In September, temperatures range from a minimum of 6°C (43°F) to a maximum of 33°C (91°F), with an average of 20°C (67°F). The month experiences significant rainfall, averaging 140 mm (5.5 inches) over 16 days, accompanied by high humidity levels at 86%. In contrast, October sees cooler temperatures, with a minimum of 3°C (37°F) and an average of 13°C (56°F), peaking at 27°C (80°F). Precipitation slightly increases to 168 mm (6.6 inches) over 14 days, while humidity decreases to 82%. For a more detailed look at the climatic conditions, you can check out Yuzawa weather in October.
In September, the weather is warm and variable, with temperatures ranging from a brisk minimum of 6°C (43°F) to a maximum of 33°C (91°F), and an average of 20°C (67°F). This month experiences significant rainfall, with 140 mm (5.5 in) of precipitation over 16 days and a high humidity level of 86%. In contrast, November brings a noticeable chill, with temperatures dipping to a minimum of -8°C (18°F) and averaging 7°C (45°F), while the maximum temperature reaches a milder 22°C (71°F). Precipitation decreases slightly to 119 mm (4.7 in) over 17 days, coupled with a lower humidity of 79%. For those interested in the specifics of November weather in Yuzawa, you can explore more Yuzawa weather in November.
In September, weather tends to be warm with temperatures ranging from a minimum of 6°C (43°F) to a maximum of 33°C (91°F), leading to an average of 20°C (67°F). This month sees considerable rainfall, with about 140 mm (5.5 in) spread over 16 days, and humidity levels are relatively high at 86%. In contrast, December experiences much colder conditions, with temperatures dropping to a minimum of -9°C (15°F) and averaging just 1°C (34°F), peaking at 15°C (59°F). Precipitation increases slightly to 158 mm (6.2 in) over 25 days, while humidity remains lower at 80%. For a detailed look at the weather in December, you can visit Yuzawa weather in December.
As September rolls into Yuzawa, the weather reveals a unique tapestry of transitions. With warm days reaching up to 33°C (91°F), it's a far cry from the cooler months, yet the average temperature of 20°C (67°F) signifies the onset of autumn. This month is marked by a distinct increase in humidity and precipitation, with showers gracing 16 days and a total of 140 mm (5.5 in) falling from the skies, creating a refreshing atmosphere. While summer swelters away, September showcases a blend of lingering warmth and fall's approach, making it a distinctive month worthy of exploration. For more detailed insights, visit Yuzawa Climate.