Last updated: August 21, 2025
In Bizen, Japan, September brings a warm tropical climate, with temperatures peaking at a maximum of 31°C (89°F) and averaging around 24°C (76°F). While enjoying the mild days, visitors should prepare for occasional rain, as the month sees approximately 222 mm (8.7 in) of precipitation spread over 13 days, contributing to a high humidity level of 87%. This combination of warmth and moisture makes September a vibrant yet unpredictable time to experience Bizen's unique cultural offerings amid lush, picturesque landscapes.
September in Bizen, Japan, marks a delightful transition from the sweltering summer heat to more temperate autumn days. With minimum temperatures hovering around 17°C (64°F) and peaking at a comfortable 31°C (89°F), the month offers a pleasant average temperature of 24°C (76°F). This sets the stage for outdoor activities, as the warmth still lingers from summer, but with enough coolness to enjoy evening strolls. The gradual decrease in temperatures from the previous months indicates a shift towards fall, inviting visitors to experience the vibrant seasonal changes in this charming region.
In September, Bizen, Japan, experiences a notable surge in precipitation, recording 222 mm (8.7 in) across 13 days of rainfall. This monthly total marks a continuation of the wet season, following the deluge of 303 mm (11.9 in) seen in July and 173 mm (6.8 in) in August. The rainfall during September contributes to a vibrant landscape, as the lush greenery reaches its peak, fueled by the abundant moisture. As autumn approaches, the precipitation begins to moderate, with October seeing a slight decrease to 211 mm (8.3 in), hinting at a gradual transition towards drier months ahead. This pattern of fluctuating rainfall not only shapes the region's climate but also influences local agriculture and the rhythm of life in Bizen.
In Bizen, Japan, the humidity in September averages a notable 87%, marking a slight decrease from the sweltering heights of 92% seen in the preceding months of July and August. This drop signals the transition into autumn, as moisture levels begin to ease following the peak summer humidity. Despite this reduction, September remains one of the more humid months, firmly anchored above the year’s average. Interestingly, the overall trend shows a rise during the summer months, with humidity climbing from 73% in March to its zenith in July and August, before gradually tapering off into the fall. This rhythm of humidity reflects the typical seasonal fluctuations, making Bizen a place where warm, damp air lingers long into the early autumn.
As September rolls into Bizen, Japan, the UV Index starts to decline slightly from the intense summer months, yet it remains a significant concern at 10, categorized as very high. With a burn time of just 15 minutes, it’s crucial to be mindful of sun exposure. The trend shows a steady peak during the summer months, where July recorded the highest value of 12, but September still demands caution. In the months leading to fall, a gradual decrease in the UV levels can be observed, transitioning to a more moderate level by October. For those planning outdoor activities, it’s advisable to stay protected and informed. To learn more about the UV Index in Bizen, visit Bizen UV Index.
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September in Bizen, Japan, enjoys a delightful transition as summer softly yields to autumn, basking in 248 hours of sunshine. This month, while slightly less sunny than the bustling brightness of August's peak at 306 hours, still provides ample light to savor the changing foliage and warm, lingering days. As the year progresses from the early months of darkness—where January barely reaches 177 hours—sunshine gradually accumulates, with spring months like April and May showcasing the sun's increasing presence. September's sunlight, positioned after the summer's intensity, continues a positive trend, marking a comfortable balance before the sun's retreat into the cooler days of October.
In Bizen, Japan, the likelihood of enjoying sunny weather experiences notable fluctuations throughout the year. After a dip in sunny days over the summer months, September offers a modest increase with a 33% chance of sunshine. This marks a slight improvement compared to the summer's lower percentages, yet remains below the more favorable odds seen in October, where the chances rise to 57%. Interestingly, the transition into autumn suggests a gradual regeneration of clearer skies, leading into the autumn months which display consistent chances for sun across November (56%) and December (59%). Thus, while September may not guarantee blue skies, it's a stepping stone towards a sunnier season ahead.
In September, Bizen, Japan enjoys a balanced daylight duration of 12 hours, a graceful transition as summer begins to yield to autumn. Following the peak of summer, where daylight reached a generous 14 hours in both June and July, the days start to shorten, revealing a gentle decline in sunlight. This gradual decrease continues through October and November, with daylight fading to just 10 hours by the end of the year. The overall pattern illustrates the typical cyclical dance of seasons, where vibrant summer days give way to the soft light of autumn, inviting moments of reflection and tranquility in the comforting embrace of shorter days.
As September ushers in the subtle shift towards autumn in Bizen, Japan, the average wind speed reaches a gentle 3.6 m/s (8 mph), reflecting a notable decline from the summer gusts. The soft breezes of early fall contrast with the more vigorous winds of winter, which peak at 5.1 m/s (11 mph) in December. This seasonal transition is mirrored in the data, as April through August exhibit a gradual decrease in wind velocity, starting from a steady 4.0 m/s (9 mph) in the spring, touching a low in July. As the temperature cools, September's winds offer a serene and inviting ambience, a precursor to the more robust gusts expected in late autumn. Thus, the month gracefully links the warm, languid days of summer to the brisk, invigorating months ahead, encapsulating the essence of seasonal change.
Weather in Bizen varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Bizen, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather is characterized by warm temperatures, with a minimum of 17°C (64°F) and an average of 24°C (76°F), peaking at 31°C (89°F). The month tends to be quite rainy, with 222 mm (8.7 in) of precipitation spread over 13 days, and humidity levels are high at 87%. In contrast, January brings a stark change, with much cooler temperatures ranging from a minimum of -2°C (29°F) to an average of 6°C (43°F) and a maximum of only 14°C (57°F). Precipitation drops significantly to 39 mm (1.5 in) over just 5 days, and humidity remains relatively low at 82%. For a closer look at January conditions, visit Bizen weather in January.
September and February present contrasting weather patterns. In September, temperatures range from a mild 17°C (64°F) at night to a warm high of 31°C (89°F), with an average of 24°C (76°F). The month experiences significant rainfall, totaling 222 mm (8.7 in) across about 13 days, and humidity levels are notably high at 87%. In stark contrast, February sees much cooler temperatures, with a minimum of -3°C (28°F) and a maximum of 15°C (60°F), averaging just 6°C (43°F). Precipitation is lighter at 55 mm (2.2 in) over 6 days, and humidity is lower at 79%. For more detailed information, check out Bizen weather in February.
September weather is characterized by warm temperatures, with a minimum of 17°C (64°F) and an average high of 31°C (89°F), making it significantly warmer than March. In contrast, March experiences much cooler temperatures, ranging from a minimum of 3°C (37°F) to an average maximum of 18°C (64°F). Additionally, September is much wetter, receiving 222 mm (8.7 in) of precipitation over 13 days compared to March, which records only 108 mm (4.2 in) across 10 days. The humidity levels also differ, with September being more humid at 87% compared to 73% in March. For a more detailed look at March weather, check out Bizen weather in March.
September and April present contrasting weather patterns. In September, temperatures range from a minimum of 17°C (64°F) to a maximum of 31°C (89°F), creating a warm and often humid atmosphere with an average of 24°C (76°F). Coupled with high humidity at 87% and significant precipitation of 222 mm (8.7 in) over 13 days, the month can feel quite sultry. In stark contrast, April offers a much cooler climate, with temperatures ranging from a minimum of 4°C (40°F) to a maximum of 21°C (71°F) and an average of 13°C (56°F). The month sees less rainfall, with 130 mm (5.1 in) over just 9 days, and lower humidity at 74%. For more detailed information on weather patterns, you can visit Bizen weather in April.
September and May exhibit distinct weather patterns, reflecting the transition between the warmer summer months and the cooler onset of autumn. In September, temperatures range from a minimum of 17°C (64°F) to a maximum of 31°C (89°F), with an average of 24°C (76°F). This month typically sees significant rainfall, with 222 mm (8.7 in) of precipitation over 13 days and a high humidity level of 87%. In contrast, May offers milder temperatures, with a minimum of 10°C (50°F) and a maximum of 25°C (77°F), averaging 18°C (65°F). Rainfall in May is noticeably lower, totaling 131 mm (5.2 in) over 9 days, and humidity sits at a comfortable 84%. For more detailed insights, check the Bizen weather in May.
When comparing the weather in September and June, September tends to be warmer, with average temperatures reaching 24°C (76°F) compared to June’s 22°C (71°F). September also experiences higher maximum temperatures, peaking at 31°C (89°F), while June’s maximum is 27°C (80°F). Both months have similar humidity levels, with September at 87% and June slightly lower at 86%. However, September is notably wetter, receiving 222 mm (8.7 in) of rainfall over 13 days, compared to June's 164 mm (6.5 in) over 12 days. For more details on June weather, you can visit Bizen weather in June.
When comparing the weather in September and July, September generally experiences slightly cooler temperatures, with a minimum of 17°C (64°F) and an average of 24°C (76°F), contrasted with July’s minimum of 20°C (69°F) and average of 26°C (78°F). While both months have a significant amount of rainfall, July sees higher precipitation at 303 mm (11.9 in) over 16 days, compared to September's 222 mm (8.7 in) over 13 days. Humidity levels are slightly lower in September at 87%, compared to 92% in July, which may make September feel a bit more comfortable despite the continued presence of rain. For more specifics on July weather, you can check Bizen weather in July.
In comparing September and August weather, September tends to be slightly cooler, with average temperatures around 24°C (76°F), compared to August's warmer average of 28°C (82°F). While September experiences a bit less humidity at 87%, it sees an increase in precipitation, averaging 222 mm (8.7 in) over 13 days, compared to August's 173 mm (6.8 in) over 12 days. This shift suggests September is characterized by a transition toward wetter conditions, making it feel more humid despite the slightly lower average temperature. For a closer look at August conditions, you can check out Bizen weather in August.
September typically sees warmer temperatures compared to October, with minimums around 17°C (64°F) and maximums reaching up to 31°C (89°F). In contrast, October's temperatures drop, offering a range from a minimum of 12°C (54°F) to a maximum of 27°C (82°F). Both months experience significant rainfall, with September averaging 222 mm (8.7 in) over 13 days and October slightly less at 211 mm (8.3 in) over 11 days. Humidity levels remain high in both months, around 87% in September and 85% in October, creating a comfortable but moist atmosphere. For more specific insights into the weather variations in October, you can check Bizen weather in October.
September and November present a noticeable contrast in weather conditions. In September, temperatures range significantly from a minimum of 17°C (64°F) to a warm average of 24°C (76°F), peaking at 31°C (89°F). The month is characterized by considerable rainfall, accumulating 222 mm (8.7 inches) over 13 days, paired with high humidity levels at 87%. In stark contrast, November experiences much cooler temperatures, with a minimum of 6°C (43°F) and an average of 14°C (57°F), reaching a maximum of 22°C (71°F). Additionally, November is significantly drier, with only 38 mm (1.5 inches) of precipitation occurring over just 5 days, accompanied by slightly lower humidity at 84%. For a more detailed look at November weather, visit Bizen weather in November.
In September, the weather is much warmer and more humid compared to December, with average temperatures ranging from a comfortable 17°C (64°F) at night to a sweltering 31°C (89°F) during the day. The month sees significant rainfall, totaling 222 mm (8.7 in) over 13 days, resulting in a high humidity level of 87%. In contrast, December experiences considerably cooler temperatures, with averages between 1°C (33°F) and 19°C (66°F), and a much drier climate, receiving only 52 mm (2.0 in) of precipitation across 6 days. The humidity drops slightly to 82%, making December feel quite crisp compared to the sultry feel of September. For more details on what to expect, check out Bizen weather in December.
As September unfolds in Bizen, it brings a refreshing transition from the heat of summer, featuring an average temperature that feels comfortably warm yet distinctly cooler than the peak summer months. The humidity remains high, lending a somewhat tropical feel to the air, while the frequency of precipitation increases, with rain gracing the region roughly half the month. This combination of warm days and heightened moisture sets September apart from the drier, hotter months preceding it, marking a shift toward more dynamic weather patterns. For more detailed insights, explore the full year-round trends at Bizen Climate.