Last updated: August 21, 2025
September in Minamiawaji, Japan, offers a mild climate characterized by an average temperature of 25°C (77°F), with highs reaching up to 29°C (85°F) and lows dropping to 20°C (69°F). The month experiences considerable rainfall, totaling 198 mm (7.8 in) over approximately 15 days, creating an atmosphere of lush greenery. With humidity levels hovering around 87%, visitors can expect a warm, tropical feel, making it a unique time to explore this beautiful area.
As September rolls into Minamiawaji, Japan, the temperatures begin to showcase the warmth of the lingering summer, with minimums settling around 20°C (69°F) and averages peaking at 25°C (77°F). The transition from the intense heat of August, where temperatures easily soared to 30°C (87°F), marks a gentle shift; maximums during September reach a comfortable 29°C (85°F). This month embodies a sweet spot in the climate, blending the tail-end of summer with hints of the cooler autumn air, making it an ideal time to enjoy the outdoors before the temperatures dip further in October. As the heat progressively lessens, September presents a perfect canvas for embracing the beauty of Minamiawaji’s natural scenery.
In September, Minamiawaji experiences a significant uptick in rainfall, receiving 198 mm (7.8 in) of precipitation over 15 days. This sharp increase from August’s 128 mm is indicative of the transition into the wetter autumn months. Following the peak of summer, where July stands out with 275 mm, September's rainfall remains substantial but manageable, marking a shift toward the lush, vibrant landscapes that characterize this time of year. This trend of increasing precipitation continues into October, which sees another rise, highlighting the region's seasonal wetness as it prepares for the cooler months ahead. Overall, September serves as a bridge, connecting the high summer values with the even heavier rains of fall, encapsulating the dynamic weather patterns of Minamiawaji.
As September unfolds in Minamiawaji, Japan, the humidity stands at a notable 87%, reflecting the last throes of summer's damp grip before the cooler months set in. After peaking at a steamy 92% in both July and August, the air begins to feel slightly crisper, yet retains a significant level of moisture. This trend of elevated humidity levels is evident as we transition from the sweltering summer into autumn, with September showcasing a slight dip compared to the preceding months, while still maintaining a higher average than the earlier part of the year. October will bring further relief, as humidity starts to settle around 85%, signaling a gradual shift towards more comfortable conditions.
As September unfolds in Minamiawaji, Japan, the UV Index reaches a very high level of 10, marking a slight decline from the extreme levels recorded in the peak summer months. With a burn time of just 15 minutes, it's crucial for sun-seekers to remain vigilant about sun protection during this transitional month. This trend of gradually decreasing UV exposure continues from the intense summer conditions, yet the need for caution remains paramount as the index remains significantly elevated compared to earlier months. As the seasons shift, the UV Index here provides a reminder of the importance of skin safety year-round. For more insights, check the details on Minamiawaji UV Index.
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In September, Minamiawaji basks in an impressive 253 hours of sunshine, marking a gentle transition from the radiant summer months. This time of year follows a peak in August, where the sun shines for 316 hours, illuminating the landscapes in a final burst of warmth before autumn settles in. As the days grow shorter, September still holds onto the brightness, making it one of the most delightful months to experience the area's natural beauty. While hours of sunshine begin to taper off into October and November, the lingering rays create a vibrant tapestry of colors, enhancing the charm of Minamiawaji as it moves toward the cooler months.
In September, Minamiawaji experiences a 30% chance of sunny weather, making it one of the less sunlit months in comparison to the brighter days of January and October, which boast chances of 50% and 58% respectively. The trend throughout the year reveals a peak in sunshine during the winter months, gradually dipping to the lowest probability in the summer with June at only 26%. As the season progresses into autumn, the likelihood of clearer skies begins to improve again, hinting at the promise of sunnier days ahead. This fluctuating pattern underscores the region's transition from the humid heat of summer to the more temperate and potentially sunnier autumn days.
In Minamiawaji, Japan, the daylight duration showcases a captivating seasonal rhythm. As winter fades, daylight gradually increases from 10 hours in January to a peak of 14 hours during the summer months of June and July, allowing residents to bask in the warmth of longer days. However, as summer transitions to autumn, daylight begins to wane, with September offering 12 hours of sunlight—still generous, yet noticeably shorter than the summer highs. This decline continues into October, before settling back at 10 hours by November, indicating a gentle return to the cozy embrace of winter's shorter days. The patterns of daylight reflect not only the changing seasons but also the warm-hearted culture of this scenic region, encouraging outdoor activities and a connection with nature throughout the year.
In September, the winds in Minamiawaji, Japan, sweep in with an average speed of 4.8 m/s (11 mph), marking a gentle shift from the summer's lull. As the year progresses, September's breeze is noticeably milder than the preceding months of June and July, where winds recorded their lowest velocities, showcasing a gradual increase into October's slightly brisker 5.8 m/s (13 mph) winds. This trend indicates a seasonal transition, as the wind picks up again towards the year's end, hinting at the stronger gusts typical of December at 7.5 m/s (17 mph). Overall, September's winds strike a balance—soft yet refreshing, inviting a sense of calm as summer wanes and autumn begins to assert itself.
Weather in Minamiawaji varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Minamiawaji, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather is much warmer compared to January, with temperatures ranging from a minimum of 20°C (69°F) to a maximum of 29°C (85°F) and an average of 25°C (77°F). The month also experiences significant rainfall, with 198 mm (7.8 in) falling over 15 days, resulting in high humidity at 87%. In contrast, January brings a much cooler climate with temperatures ranging from a chilly 1°C (34°F) at night to a mild 17°C (63°F) during the day, averaging around 8°C (47°F). Precipitation is lower in January, amounting to 52 mm (2.1 in) over just 7 days and accompanied by a slightly lower humidity level of 82%. For more detailed information, you can check Minamiawaji weather in January.
September and February present stark contrasts in weather. In September, temperatures are significantly warmer, with minimums around 20°C (69°F) and averages reaching 25°C (77°F), peaking at 29°C (85°F). The month is also quite wet, receiving about 198 mm (7.8 in) of precipitation over 15 days, alongside higher humidity levels at 87%. In contrast, February experiences much cooler temperatures, with a minimum of just 1°C (35°F) and an average of 8°C (46°F), reaching a maximum of 16°C (61°F). Precipitation is also lower, totaling 62 mm (2.5 in) over 7 days and accompanied by a humidity of 79%. For more detailed information about February weather, you can check Minamiawaji weather in February.
In comparing the weather between September and March, it's clear that September offers significantly warmer temperatures, with minimums around 20°C (69°F) and maximums reaching up to 29°C (85°F). In contrast, March experiences much cooler conditions, with temperatures ranging from a minimum of 4°C (40°F) to a maximum of 17°C (62°F). Additionally, September sees higher precipitation levels, totaling 198 mm (7.8 in) over approximately 15 days, while March has a milder 112 mm (4.4 in) across about 10 days. The humidity also tends to be higher in September at 87%, compared to March's 73%. For more detailed information, you can check Minamiawaji weather in March.
In comparing the weather between September and April, one can observe significant differences in temperature and moisture levels. September enjoys warmer conditions with average temperatures peaking at around 25°C (77°F) and maxing out at 29°C (85°F), while April has much cooler averages, with maximum temperatures only reaching 20°C (68°F). Additionally, September is characterized by higher humidity at 87% and more frequent rainfall, experiencing precipitation on 15 days totaling 198 mm (7.8 in), compared to April’s 122 mm (4.8 in) over just 8 days. This makes September feel more oppressive, while April offers a refreshing transition into spring. For more specific details about April weather, check out Minamiawaji weather in April.
In September, the weather tends to be warmer and more humid compared to May, with average temperatures ranging from a minimum of 20°C (69°F) to a maximum of 29°C (85°F). In contrast, May experiences cooler temperatures, ranging from a minimum of 12°C (54°F) to a maximum of 23°C (73°F). September also sees higher precipitation levels, with 198 mm (7.8 in) over about 15 days, while May has a lower total of 160 mm (6.3 in) spread across 9 days. Humidity remains relatively high in both months, with September at 87% and May at 84%. For more detailed information on May weather, you can visit Minamiawaji weather in May.
In comparing the weather of September and June, September tends to be warmer, with temperatures reaching a maximum of 29°C (85°F) compared to June's peak of 25°C (78°F). The average temperature in September is also higher at 25°C (77°F) versus June’s 21°C (71°F). However, September experiences significantly more precipitation, averaging 198 mm (7.8 in) over 15 days, while June sees 177 mm (7.0 in) over just 11 days. Humidity levels remain relatively consistent between the two months, with September at 87% and June at 86%. For more detailed information, you can check the Minamiawaji weather in June.
In comparing the weather of September and July, both months exhibit similar average temperatures, with September averaging 25°C (77°F) and July also at 25°C (78°F). However, July tends to be slightly warmer with a minimum temperature of 22°C (71°F) compared to September’s 20°C (69°F). Precipitation is notably higher in July, totaling 275 mm (10.8 in) over 15 days, in contrast to September's 198 mm (7.8 in) with the same amount of rainy days. Humidity also peaks in July at 92%, making it a more oppressively humid month than September, which has a humidity level of 87%. For a more detailed look into July's weather, check out Minamiawaji weather in July.
In comparing the weather conditions of September and August, September experiences slightly cooler temperatures, with a minimum of 20°C (69°F) and an average of 25°C (77°F), compared to August's minimum of 23°C (73°F) and an average of 27°C (81°F). Additionally, September is wetter, seeing 198 mm (7.8 in) of precipitation over 15 days, while August has only 128 mm (5.0 in) over 9 days. Despite being warmer, August also features higher humidity levels at 92%, compared to September's 87%. For more detailed information, you can refer to Minamiawaji weather in August.
In September, the weather tends to be warmer with temperatures ranging from a minimum of 20°C (69°F) to a maximum of 29°C (85°F) and an average of 25°C (77°F). This month typically experiences significant rainfall, accumulating 198 mm (7.8 in) over 15 days and a high humidity level of 87%.
Conversely, October sees cooler temperatures, with a minimum of 15°C (59°F), an average of 21°C (70°F), and a maximum of 26°C (79°F). Interestingly, it records higher precipitation levels of 310 mm (12.2 in) but over fewer days—12 in total—along with slightly lower humidity at 85%. For more detailed weather insights, you can check Minamiawaji weather in October.
September weather is characterized by warm temperatures, with a minimum of 20°C (69°F) and an average high of 29°C (85°F), creating a humid atmosphere with 87% humidity. This month also experiences significant rainfall, with 198 mm (7.8 in) of precipitation spread over 15 days. In contrast, November sees a noticeable drop in temperatures, with minimums falling to 9°C (49°F) and an average high of 22°C (72°F). The precipitation decreases significantly to 57 mm (2.3 in) over just 7 days, and humidity remains relatively high at 84%. For more information on November weather, you can refer to Minamiawaji weather in November.
In September, the weather is typically warm, with average temperatures ranging from a minimum of 20°C (69°F) to a maximum of 29°C (85°F), accompanied by high humidity levels of 87%. This month is marked by considerable rainfall, totaling 198 mm (7.8 in) over about 15 days. In contrast, December experiences much cooler temperatures, with the average falling between 4°C (39°F) and 20°C (69°F), and a much drier climate, as it sees only 66 mm (2.6 in) of precipitation over 9 days. The humidity in December is slightly lower at 82%. For more detailed weather information, you can check Minamiawaji weather in December.
As September rolls in, Minamiawaji welcomes a delightful transition in weather that sets it apart from the sweltering summer months. While the temperatures remain pleasant, hovering around an average of 25°C, the humidity peaks at a muggy 87%, creating a unique, tropical atmosphere. With a substantial 198 mm of rain over 15 days, the landscape transforms into a vibrant canvas of greenery, offering a refreshing contrast to the drier months ahead. As the warm days linger, the onset of the rainy season provides a gentle reminder of nature's rhythm. Discover more about how September's weather adds a distinct flavor to the climate by exploring Minamiawaji Climate.