Last updated: August 21, 2025
In Minami-Soma, Japan, September brings a dynamic blend of warmth and moisture, with maximum temperatures reaching up to 30°C (86°F) and an average of 22°C (72°F). The month experiences a notable minimum temperature of 16°C (62°F), providing a comfortable backdrop for outdoor activities. However, with 191 mm (7.5 in) of precipitation over 15 days, rain is a frequent companion, contributing to the area's lush landscapes. The humidity level hovers around 84%, ensuring a thick, tropical feel to the air. September’s weather transforms Minami-Soma into a vibrant scene of summer's last breath before autumn arrives.
In September, Minami-Soma experiences a smooth transition into autumn, characterized by mild temperatures that invite outdoor exploration. The minimum temperature hovers around a comfortable 16°C (62°F), while the average settles at a pleasant 22°C (72°F), allowing for enjoyable daytime activities. As the month progresses, highs can reach up to 30°C (86°F), echoing the lingering warmth of summer, yet encouraging a gradual cool-down from the intense heat of August. Overall, September offers a lovely balance, making it an ideal time to experience the natural beauty of Minami-Soma as the leaves start to change.
September in Minami-Soma, Japan, marks a significant peak in precipitation, with 191 mm (7.5 in) of rain over 15 days. This month sits comfortably among the wetter periods, following the intense downpours of July and August, which see 239 mm and 158 mm respectively. The trend demonstrates a clear transition into the autumn months, as precipitation begins to decline in October, despite still maintaining a high total of 257 mm (10.1 in). This seasonal pattern highlights a distinctive peak in rainfall during the late summer and early fall, creating a lush landscape and contributing crucial moisture before the drier months ahead.
September in Minami-Soma, Japan, sees humidity levels settling at 84%, a notable dip from the peak summer months of July and August, which boast humidity readings of 92% and 90% respectively. This transition marks a gradual decrease in moisture from the sweltering heat, aligning with the arrival of autumn. Although September is still fairly humid, it paves the way for more comfortable conditions as the year progresses into October, where humidity drops further to 80%. Overall, the data illustrates a clear trend of high humidity dominating the summer months, followed by a steady decline into fall, fostering a shift in the region's climate as temperatures cool.
As summer transitions into autumn, September in Minami-Soma, Japan, maintains a very high UV Index of 9, with a burn time of just 15 minutes. Following the extreme levels seen in the peak summer months of July and August, this slight dip indicates a continuation of significant sun exposure, albeit with a bit more time to spare compared to the scorching heights of summer. Overall, the trend reveals an early month of autumn that still demands caution under the sun, as UV levels are considerably elevated compared to the cooler months that follow. For ongoing updates and essential tips on sun safety, be sure to check Minami-Soma UV Index.
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As the warm days of summer fade, September in Minami-Soma offers a delightful balance of sunshine with 243 hours of golden rays. While daylight begins to wane compared to the sun-drenched heights of May and August, it remains steady, reflecting a transition into the cooler months. This dip marks a notable shift from the peak sunshine seen in late spring and summer, yet it retains a certain charm, inviting locals and visitors alike to soak in the last glimmers of warmth before autumn settles in. With sunshine hours gradually decreasing, September encapsulates a gentle farewell to the summer glow, paving the way for the crisp nights and vibrant foliage of fall.
In September, Minami-Soma experiences a 30% chance of sunny weather, reflecting a noticeable dip from the more favorable summer months. This trend toward cloudier days continues the pattern observed from June to August, where sunny probabilities linger around the low 30s. Interestingly, September marks the transition into fall, where the likelihood of sunshine gradually increases again, with October jumping to a 44% chance. Overall, while September may not offer the sunniest days of the year, it serves as a bridge to a more favorable October, inviting a blend of late summer warmth and early autumn charm.
As summer makes its graceful exit, September in Minami-Soma witnesses a gentle decline in daylight duration, offering approximately 12 hours of sunlight. This transition reflects a broader trend observed throughout the year, where longer days peak in the spring and summer months, with May, June, and July providing the most expansive stretches of daylight at 14 hours each. As the days shorten, September serves as a poignant reminder of the changing seasons, bridging the brightness of summer with the cozy embrace of autumn. Following this, daylight continues to wane into October and November, where it fluctuates back down to 11 and 10 hours, respectively, heralding the arrival of winter’s shorter days.
In September, the winds in Minami-Soma begin to shift, averaging 4.1 m/s (9 mph), marking a subtle transition from the light breezes of summer to the more invigorating gusts of autumn. This slight increase in wind speed from the summer months reflects a gradual return to the higher averages experienced in the earlier part of the year. As the hot days of August wane, the September air becomes crisper, inviting residents and visitors alike to engage in outdoor activities amid the refreshing winds. This transition period heralds not only a change in weather but also a shift in atmosphere, as the landscape prepares to embrace the vibrant colors and cooler temperatures of fall.
Weather in Minami-Soma varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Minami-Soma, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather of September and January, a stark contrast emerges. September enjoys a mild climate with average temperatures ranging from a minimum of 16°C (62°F) to a maximum of 30°C (86°F), accompanied by a high humidity level of 84% and significant rainfall averaging 191 mm over 15 days. In sharp contrast, January is characterized by its cold temperatures, with averages dipping to a minimum of -3°C (27°F) and a maximum of only 13°C (56°F). The month is drier, with just 52 mm of precipitation spread over 8 days and a lower humidity of 76%. For more detailed insights, check out Minami-Soma weather in January.
September weather is characterized by warm temperatures, with averages around 22°C (72°F) and highs reaching up to 30°C (86°F). The month experiences considerable rainfall, totaling 191 mm (7.5 in) over approximately 15 days, contributing to a high humidity level of 84%. In contrast, February brings much cooler conditions, with average temperatures dropping to about 5°C (41°F) and nighttime lows hitting -1°C (31°F). Precipitation is significantly lower at 41 mm (1.6 in) over just 7 days, and humidity levels are also somewhat reduced at 75%. For more details on February weather, you can check out Minami-Soma weather in February.
In September, the weather is significantly warmer, with average temperatures ranging from a minimum of 16°C (62°F) to a maximum of 30°C (86°F), creating a summery ambiance. However, this month also sees considerable precipitation, totaling 191 mm (7.5 in) over 15 days, contributing to a high humidity level of 84%. In contrast, March experiences much cooler temperatures, with a range from a chilly minimum of 0°C (33°F) to a maximum of 18°C (64°F), and an average of only 7°C (46°F). Precipitation is lighter, at 117 mm (4.6 in) across 9 days, and the humidity is lower at 72%. For a more detailed look at March weather, please check Minami-Soma weather in March.
In comparing the weather between September and April, noticeable differences emerge in both temperature and precipitation. September enjoys warmer temperatures, ranging from a minimum of 16°C (62°F) to a maximum of 30°C (86°F), with an average of 22°C (72°F). In contrast, April remains cooler, with temperatures ranging from a chilly 2°C (37°F) to a pleasant maximum of 20°C (69°F) and an average of only 11°C (51°F). Additionally, September experiences more rainfall, totaling 191 mm (7.5 in) over approximately 15 days, while April sees less precipitation, amounting to 115 mm (4.5 in) across 11 days. Although April is less humid at 73%, September’s higher humidity of 84% contributes to its warmer feel. For more details on April weather, you can visit Minami-Soma weather in April.
September and May present quite distinct weather patterns. In September, temperatures range from a minimum of 16°C (62°F) to a maximum of 30°C (86°F), with an average temperature of 22°C (72°F). The month is also characterized by higher precipitation, totaling 191 mm (7.5 in) over 15 days, along with an elevated humidity of 84%. In contrast, May features cooler temperatures, with a minimum of 7°C (45°F), averaging 16°C (60°F) and peaking at 25°C (77°F). Precipitation in May is less, at 119 mm (4.7 in) over 12 days and humidity levels are slightly lower at 80%. For more details about the weather conditions in May, you can visit Minami-Soma weather in May.
In comparing the weather of September and June, September tends to be warmer and wetter. It boasts a minimum temperature of 16°C (62°F) and averages 22°C (72°F), reaching a maximum of 30°C (86°F). In contrast, June has a more moderate temperature range, with a minimum of 13°C (56°F), an average of 19°C (66°F), and a maximum of 27°C (80°F). September also experiences significantly higher rainfall, with 191 mm (7.5 in) over 15 days compared to June's 105 mm (4.1 in) over 12 days. Additionally, both months have high humidity, but September's average humidity is slightly lower at 84% compared to June's 87%. For a closer look at June weather specifics, visit Minami-Soma weather in June.
When comparing the weather in September and July, both months experience similar maximum temperatures, peaking at 30°C (86°F). However, September tends to be slightly cooler overall, with an average temperature of 22°C (72°F) compared to July's 23°C (73°F). July also sees more precipitation, with 239 mm (9.4 in) falling over 18 days, while September receives 191 mm (7.5 in) over 15 days. Humidity levels are higher in July at 92%, compared to September's 84%, making July feel a bit more muggy. For further insights on July weather, you can visit Minami-Soma weather in July.
In comparing the weather of September to August, we see some noticeable differences. September's temperatures decrease slightly, with minimums around 16°C (62°F) and averages at 22°C (72°F), compared to August's milder minimum of 20°C (67°F) and average of 25°C (77°F). While September experiences a maximum of 30°C (86°F), August is just a notch warmer at 31°C (88°F). Precipitation levels are also higher in September, reaching 191 mm (7.5 in) over 15 days, while August records 158 mm (6.2 in) over the same number of days. Humidity remains high in both months but is slightly lower in September at 84% compared to August's 90%. For a more detailed look at August's weather, visit Minami-Soma weather in August.
September's weather is characterized by warmer temperatures, with an average of 22°C (72°F) and highs reaching up to 30°C (86°F). The month experiences significant rainfall, totaling 191 mm (7.5 in) over 15 days, and humidity averages around 84%. In contrast, October sees a notable drop in temperatures, with an average of 18°C (64°F) and maximums of 26°C (78°F). While October is still relatively wet, it records higher precipitation levels at 257 mm (10.1 in) over just 12 days, alongside slightly lower humidity at 80%. For more detailed weather information, you can refer to Minami-Soma weather in October.
September and November present stark contrasts in weather. September enjoys warmer temperatures, with a minimum of 16°C (62°F) and an average of 22°C (72°F), peaking at 30°C (86°F). However, it is also quite rainy, receiving 191 mm (7.5 in) of precipitation over 15 days, coupled with high humidity levels of 84%. In contrast, November sees a drop in temperatures, with lows of 4°C (39°F) and a more moderate average of 13°C (55°F), reaching a maximum of 20°C (69°F). The month is drier, experiencing only 44 mm (1.7 in) of rain across 6 days and lower humidity at 77%. For more detailed information on November weather, visit Minami-Soma weather in November.
In September, the weather is characteristically warm, with temperatures ranging from a minimum of 16°C (62°F) to a maximum of 30°C (86°F), and an average of 22°C (72°F). This month also experiences significant rainfall, with precipitation totaling 191 mm (7.5 in) over 15 days, coupled with a high humidity level of 84%. In contrast, December brings much cooler temperatures, with a range from a minimum of 0°C (32°F) to a maximum of 17°C (63°F), averaging only 7°C (45°F). The precipitation is markedly lower at 60 mm (2.4 in) across 11 days, and the humidity decreases slightly to 77%. For a more detailed look at December's climate, you can check Minami-Soma weather in December.
As September unfolds in Minami-Soma, the weather begins to shift, reflecting a mix of summer's warmth and the approaching autumn chill. With daytime temperatures still peaking at a comfortable 30°C, the month offers a pleasant average of 22°C, making it a favorable time for outdoor activities. However, the increased humidity at 84% coupled with approximately half the month’s days experiencing rainfall—totaling 191 mm—creates a distinctive tropical feel compared to the dryer, more temperate conditions of the preceding months. This transitional period not only enhances the lush landscape but also signals the gradual change to cooler autumn weather. For a deeper understanding of how September fits within the broader context of Minami-Soma's climate, visit Minami-Soma Climate.