Last updated: August 21, 2025
September in Mashiko, Japan presents a unique blend of seasonal transitions, characterized by a maximum temperature reaching up to 34°C (94°F), providing warm days ideal for outdoor activities. The average temperature hovers around 23°C (73°F), while cool evenings can drop to a refreshing 11°C (53°F). This month also sees a significant level of precipitation, totaling 153 mm (6.0 in) over 17 days, contributing to the area's lush greenery. Coupled with high humidity levels at 89%, September in Mashiko offers a refreshing yet humid climate, setting the stage for vibrant early autumn experiences.
In September, Mashiko, Japan experiences a delightful transition into autumn, with temperatures ranging from a minimum of 11°C (53°F) to a maximum of 34°C (94°F). The average temperature of 23°C (73°F) reflects the lingering warmth of summer, yet hints at the coolness to come. As the month progresses, you can expect days to be pleasantly warm, perfect for outdoor activities, but with a noticeable drop in temperatures at night. This gradual shift makes September an ideal time to enjoy the vibrant autumn colors and cultural events while basking in the last rays of summer sun.
In September, Mashiko experiences a notable surge in precipitation, with an average of 153 mm (6.0 in), marking it as one of the wetter months of the year. This increase sets the stage for the transition into autumn, with rain falling on 17 days, reflecting a shift from the drier summer months. The trend is part of a gradually rising pattern, as rainfall consistently escalates from July's peak of 219 mm (8.6 in) down to October when it again peaks at 210 mm (8.3 in). This seasonal rhythm illustrates how Mashiko’s climate supports lush landscapes and rich harvests, while the steady rainfall in September serves as a vital precursor to the cooler months ahead.
In September, Mashiko, Japan experiences a notable shift in humidity, with levels at 89%—a slight decrease from the sweltering summer months of July and August, which both maintain a high 92% humidity. This month represents a transition as the air begins to cool, yet it remains more humid than the spring months, demonstrating a steady pattern of high humidity that characterizes the late summer and early autumn period. While September's humidity slightly dips, it still reflects a persistent moisture in the air, hinting that autumn in Mashiko is both crisp and richly humid, as the seasonal shift begins to take hold.
In September, Mashiko, Japan, experiences a notable decline in UV intensity, with the UV Index reaching 9, categorizing it as very high. This trend follows the peak summer months of July and August, which saw an extreme UV Index of 11 and a high level of exposure at 10. With a burn time of just 15 minutes in September, sun protection remains essential as the days begin to shorten, but caution is still necessary to avoid skin damage. As the seasons transition into autumn, awareness of potential UV exposure is crucial, and you can find more details about the local UV levels throughout the year at Mashiko UV Index.
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As September unfolds in Mashiko, Japan, the sun graces the town with 221 hours of sunshine, marking a gentle decline from the vibrant summer months. This shift follows the peak of 274 hours in May and a robust 265 hours in August, underlining the transition into cooler autumn days. While September’s sunlight is notably less than that of the previous months, it still surpasses the earlier winter and spring totals, demonstrating a lingering warmth before the onset of autumn. As daylight gradually wanes, the changing season invites residents and visitors alike to savor the last golden hues of summer, making it a delightful month to explore Mashiko's famed pottery and scenic landscapes.
In Mashiko, Japan, the likelihood of sunny weather in September sits at a modest 25%, reflecting a trend of diminishing sunshine as summer yields to autumn. From the balmy days of June and July, where sunlit moments are commonplace, the chances of clear skies drop notably in the subsequent months. August and September hover around the same low probabilities, suggesting that while the heat begins to wane, so too does the sun's generosity. Following September, there is a gradual recovery, with October presenting a sharper rise to 45%, indicating a return to more favorable sunny conditions as the season progresses.
In Mashiko, Japan, the rhythm of daylight varies significantly throughout the year, showcasing a beautiful transition from winter to autumn. As September rolls in, the days begin to shorten, offering about 12 hours of daylight—a gentle decline from the sun-drenched months of summer, where daylight peaks at 14 hours in June and July. This gradual tapering reflects a natural progression, with daylight reaching its highest in late spring and starting to retreat as autumn approaches. Following September, daylight continues to dwindle to 11 hours in October and 10 hours in November, signaling the impending winter months, where the cycle begins anew. This ebb and flow of sunlight not only marks the changing seasons but also invites Mashiko's residents to embrace the beauty of each unique time of year.
September in Mashiko, Japan, ushers in a gentle breeze with an average wind speed of 2.0 m/s (5 mph), mirroring the calmness of the preceding August. Throughout the summer months, the winds typically slow down, reaching their nadir in July at 1.5 m/s (3 mph), before gradually picking up again. This transition into autumn displays a subtle yet noticeable consistency, as the wind speeds in September remain aligned with the average of the subsequent October. Overall, the period is marked by a soft rustling of leaves and a refreshing shift in the air, offering a taste of the seasonal change ahead.
Weather in Mashiko varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Mashiko, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather features a broader temperature range, with minimums around 11°C (53°F) and maximums reaching up to 34°C (94°F), resulting in an average temperature of 23°C (73°F). This month also brings considerable rainfall, totaling 153 mm (6.0 in) over 17 days, coupled with high humidity levels of 89%. In stark contrast, January experiences much colder temperatures, with a minimum of -12°C (10°F) and a maximum of only 17°C (62°F), leading to an average of just 4°C (39°F). Rainfall is significantly reduced to 35 mm (1.4 in) over just 5 days, while humidity remains relatively steady at 88%. For more detailed information about the weather in January, you can visit Mashiko weather in January.
September features warm temperatures, with an average of 23°C (73°F) and a maximum that can reach up to 34°C (94°F). The month is characterized by high humidity levels at 89% and significant rainfall, totaling 153 mm (6.0 in) over 17 days. In contrast, February presents a chilly atmosphere, with an average temperature of just 5°C (41°F) and a minimum dipping as low as -5°C (23°F). This month experiences much less rainfall, only 38 mm (1.5 in) across 6 days, and a slightly lower humidity of 86%. This stark difference in climate illustrates the seasonal transition from summer warmth to winter chill. For more detailed information, check out the Mashiko weather in February.
In September, the weather is notably warmer, with average temperatures reaching around 23°C (73°F) and maximums peaking at 34°C (94°F), compared to March, where the average is a cooler 9°C (49°F) and maximums only go up to 24°C (76°F). September experiences higher humidity at 89% and greater precipitation with 153 mm (6.0 in) over 17 days, while March sees a total of 125 mm (4.9 in) of rain spread over 11 days and a slightly lower humidity of 81%. This stark contrast in temperatures and precipitation highlights the shift from the warm, humid late summer to the cooler, more variable early spring. For more detailed insights on March weather, you can visit Mashiko weather in March.
In comparing the weather of September and April, notable differences emerge in temperature and humidity. September boasts a warmer climate with average temperatures ranging from a minimum of 11°C (53°F) to a maximum of 34°C (94°F), while April is considerably cooler, with minimum temperatures dropping to -1°C (31°F) and a maximum of 29°C (84°F). Precipitation is also more pronounced in September, totaling 153 mm (6.0 in) over 17 days, compared to April's 115 mm (4.5 in) spread across 11 days. Furthermore, September's humidity level sits at a high 89%, surpassing April's relatively drier 78%. For more detailed insights into April weather, you can explore Mashiko weather in April.
September and May present strikingly different weather patterns. In September, temperatures range from a mild 11°C (53°F) to a warm 34°C (94°F), with an average of 23°C (73°F). The month is characterized by high humidity at 89% and frequent rainfall, totaling 153 mm (6.0 in) over 17 days. In contrast, May experiences cooler temperatures, with a minimum of 5°C (41°F), an average of 19°C (66°F), and a maximum of 34°C (93°F). Although the high temperature can match September's peak, May is less humid at 81% and sees less precipitation, totaling 124 mm (4.9 in) over 12 days. For a detailed look at the May conditions, you can visit Mashiko weather in May.
September and June offer relatively similar weather patterns, with both months featuring a comfortable range of temperatures. In September, the temperatures range from a minimum of 11°C (53°F) to a maximum of 34°C (94°F), averaging around 23°C (73°F). This month sees slightly more rainfall, with 153 mm (6.0 in) of precipitation over 17 days and a humidity level of 89%. In contrast, June has a minimum temperature of 12°C (53°F) and a maximum of 33°C (92°F), with an average temperature of 22°C (71°F). June experiences less precipitation at 132 mm (5.2 in) spread over 15 days, maintaining a comparable humidity level of 88%. For a detailed overview of June's weather specifically, you can check out Mashiko weather in June. Overall, both months are characterized by warm temperatures and humidity, but September typically experiences a bit more rainfall.
When comparing the weather patterns of September and July, several key differences emerge. July tends to be warmer, with average temperatures reaching 25°C (78°F) and maximums peaking at 37°C (98°F). In contrast, September has a more moderate average of 23°C (73°F), with maximum temperatures not exceeding 34°C (94°F). However, July is also marked by higher humidity levels at 92%, compared to September’s 89%. Precipitation is more frequent in July, with rain occurring on 20 days and total rainfall amounting to 219 mm (8.6 in), while September experiences 17 days of rain and a total precipitation of 153 mm (6.0 in). For more detailed insights, check out Mashiko weather in July.
In comparing the weather of September and August, September experiences a slightly broader temperature range with a minimum of 11°C (53°F) and a maximum of 34°C (94°F), while August tends to be warmer with temperatures ranging from a minimum of 15°C (60°F) to a peak of 36°C (98°F). The average temperature in August is higher at 27°C (81°F) compared to September's 23°C (73°F). Precipitation levels are comparable, with September receiving 153 mm (6.0 in) over 17 days and August averaging 136 mm (5.4 in) over 16 days. Humidity remains high in both months, slightly favoring September at 89% compared to August's 92%. For more details on the specific conditions in August, visit Mashiko weather in August.
In comparing the weather of September and October, we observe a noticeable shift in temperatures and precipitation. September brings warmer conditions with an average temperature of 23°C (73°F) and highs reaching up to 34°C (94°F), while October sees a significant drop, with average temperatures falling to 17°C (64°F) and maximums of 32°C (89°F). Additionally, October experiences increased rainfall, with 210 mm (8.3 in) of precipitation over 13 days compared to September's 153 mm (6.0 in) over 17 days. The humidity remains fairly constant, hovering around 89% in September and slightly declining to 87% in October. For more detailed insights, you can check Mashiko weather in October.
September and November demonstrate contrasting weather patterns. In September, temperatures range from a mild 11°C (53°F) at night to a hot 34°C (94°F) during the day, with an average of 23°C (73°F). The month is characterized by significant rainfall, totaling 153 mm (6.0 in) over 17 days, and high humidity levels of 89%. In stark contrast, November experiences much cooler temperatures, with a minimum of -2°C (28°F), an average of 12°C (53°F), and a maximum of 23°C (74°F). Precipitation decreases to 56 mm (2.2 in) over just 6 days, accompanied by slightly lower humidity at 85%. For more details on November weather, check Mashiko weather in November.
September and December present starkly contrasting weather patterns. In September, temperatures hover between a minimum of 11°C and a maximum of 34°C, creating a warm environment with an average of 23°C. The month also experiences considerable rainfall, with 153 mm spread over 17 days, and high humidity levels at 89%. In contrast, December sees a much cooler climate, with temperatures ranging from a minimum of -3°C to a maximum of 19°C and an average of just 6°C. This month is significantly drier, receiving only 48 mm of precipitation over 6 days, and humidity decreases slightly to 86%. The difference in weather illustrates the transition from the warm end of summer to the chill of winter. For more details on December weather specifically, check out Mashiko weather in December.
As September rolls into Mashiko, the weather presents a unique blend compared to other months. Characterized by a significant dip in temperatures, days can reach high, sweltering peaks of 34°C, while evenings cool off to a refreshing 11°C. This transitional period is also marked by increased humidity levels at 89%, making the air feel notably heavier. September is quite a wet month, with nearly half the month experiencing precipitation, totaling 153 mm over 17 days. This shift creates a vibrant landscape, as the rain contributes to lush greenery, distinctly setting the scene apart from the drier summer months. For a deeper insight into Mashiko's varied seasons, explore our detailed overview of the Mashiko Climate.