Last updated: August 21, 2025
In September, Awaji, Japan, experiences a warm and humid climate, with maximum temperatures reaching 30°C (87°F) and an average of 25°C (77°F). While the days can be comfortably warm, evenings can cool down to a minimum of 17°C (63°F). This month also marks a relatively wet period, with 196 mm (7.7 in) of precipitation spread over 14 days, contributing to a high humidity level of 87%. Visitors can expect to encounter a lush landscape, but should prepare for occasional rain while enjoying the warmth of Awaji's September weather.
In September, Awaji, Japan, transitions smoothly from the sweltering heat of summer to the mild beginnings of autumn. With minimum temperatures around 17°C (63°F) and a pleasant average of 25°C (77°F), the nip in the air offers respite from August's highs. As the month progresses, the maximum temperatures hover around 30°C (87°F), allowing for lingering warmth, ideal for outdoor activities and exploration. This gradual cooling hints at the approaching fall, marking September as a delightful bridge between the vibrant summer hues and the subtle autumn palette that awaits in the coming months. Enjoying moderate weather, it's a perfect time to experience Awaji’s natural beauty and cultural richness.
September marks a significant shift in precipitation patterns for Awaji, Japan, as the region experiences an increase in rainfall, accumulating 196 mm (7.7 in) over 14 days. This uptick follows the summer months, particularly July, which recorded a staggering 294 mm (11.6 in). As the temperatures begin to cool, September's rainfall is not only substantial but also reflects a broader trend of heightened wet conditions leading into autumn. The transition from the drier late summer months underscores the role of September as a bridge to the wetter months ahead, with October anticipated to deliver even more rain, totaling 260 mm (10.2 in). This seasonal variation illustrates the dynamic climate of Awaji, with September serving as a pivotal month in the annual precipitation cycle.
In September, Awaji, Japan, experiences a notable shift as humidity levels begin to gradually decline, measuring at 87%. This marks a transition from the sweltering summer peak of 92% in both July and August. As the island moves out of the summer heat, it still retains a hint of the high humidity characteristic of the warmer months. Interestingly, this slight dip continues into October, where humidity settles at 85%, suggesting a trend of decreasing humidity as autumn approaches. Overall, while September’s humidity remains relatively high, it signifies the start of a more comfortable period in Awaji’s climate cycle.
As summer transitions into fall, the UV Index in Awaji, Japan experiences a slight decrease in intensity, registering at 10 in September, which falls into the very high exposure category. This marks a subtle dip from the peak months of July and August, where the Index reached 12 and 11, respectively, characterized by extreme exposure levels and minimal burn times of just 10 minutes. Compared to earlier months like March, where the UV Index measured 8, September demands a careful approach to sun exposure with a burn time of 15 minutes, reflecting the ongoing need for sun protection. For detailed UV forecasts and safety tips, visit Awaji UV Index to ensure your time outdoors remains enjoyable and safe.
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September in Awaji, Japan, offers a delightful blend of warmth and brightness, boasting 253 hours of sunshine. This month reflects a slight decline from the high 316 hours of August, yet still aligns with the trend of abundant sunlight seen throughout the summer. As the seasons transition, September's sunlight harkens a softer luminosity while remaining well above the winter months’ averages. Each hour spent basking in the September sun invites both residents and visitors to enjoy the lingering warmth of summer, making it a perfect time for outdoor activities and picturesque sunsets that hint at the cooler days ahead.
In September, Awaji, Japan, experiences a 31% chance of sunny weather, which mirrors the somewhat subdued sunlit trends of the summer months, where July and August also hover around the same percentage. This period marks a transition as the island begins to shift towards the crispness of October, boasting a much higher 60% likelihood of sunny days. While September isn't the sunniest month, it does offer a pleasant opportunity to enjoy the lingering warmth of late summer, encouraging outdoor activities among residents and visitors alike. As autumn approaches, the increasing likelihood of sunshine in subsequent months suggests that those who enjoy mild weather with a hint of sunshine are in for a treat as the season unfolds.
As September unfolds in Awaji, Japan, the daylight duration shifts to a comfortable 12 hours, bridging the long brightness of summer and the approaching fall. Following a peak of 14 hours in June and July, the gradual decrease in daylight becomes evident, with August still offering a robust 13 hours. This transition marks a significant change from the early months of the year, where daylight was limited to 10 hours in January and February. As the days grow shorter into October, the blend of lingering warmth and diminishing light creates a unique atmosphere, perfect for enjoying nature's transition into autumn.
As September unfolds in Awaji, Japan, the average wind speed dips to 3.7 m/s (8 mph), making it one of the calmer months of the year. Following the slightly breezy days of summer, where August recorded 5.2 m/s (12 mph), September ushers in a notable reduction in wind activity, setting the tone for the season ahead. This trend continues into October, where the wind picks up slightly to 4.5 m/s (10 mph), indicating a gradual return to more active conditions as autumn deepens. The overall pattern reveals a distinct seasonal rhythm; from the brisker gusts of winter, peaking in December at 6.1 m/s (14 mph), to the serene breezes of summer, every month on Awaji island has a story to tell through its winds.
Weather in Awaji varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Awaji, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January exhibit contrasting weather characteristics. In September, temperatures range from a minimum of 17°C (63°F) to a maximum of 30°C (87°F), with an average of 25°C (77°F). This month also sees significant rainfall, with 196 mm (7.7 in) of precipitation over 14 days and high humidity at 87%. In stark contrast, January presents much cooler conditions, with temperatures dropping to a minimum of 0°C (33°F) and a maximum of 16°C (61°F), averaging around 7°C (45°F). Precipitation in January is considerably lower at 54 mm (2.1 in) across 9 days, along with slightly lower humidity levels at 82%. For more details on January weather, check Awaji weather in January.
September and February showcase strikingly different weather patterns. In September, temperatures are much warmer, ranging from a minimum of 17°C (63°F) to a maximum of 30°C (87°F), with an average of 25°C (77°F). However, this month also experiences significant precipitation, totaling 196 mm (7.7 in) over about 14 days, contributing to a high humidity of 87%. In contrast, February is considerably cooler, with temperatures dipping to a minimum of 1°C (34°F) and peaking at 15°C (59°F), averaging only 7°C (45°F). Rainfall is lighter in February, with just 62 mm (2.4 in) over 8 days and a lower humidity level of 79%. For more specific details, you can check Awaji weather in February.
The weather in September is notably warmer and more humid compared to March. In September, temperatures range from a minimum of 17°C (63°F) to a maximum of 30°C (87°F), with an average of 25°C (77°F). This month also sees significant rainfall, with 196 mm (7.7 in) spread over 14 days, resulting in a high humidity level of 87%. In contrast, March experiences much cooler conditions, with temperatures ranging from a minimum of 3°C (38°F) to a maximum of 16°C (62°F), and an average of just 10°C (50°F). Precipitation is also lower in March, totaling 106 mm (4.2 in) over 10 days, and humidity is relatively lower at 73%. For more details about the weather in March, you can visit Awaji weather in March.
When comparing the weather in September and April, one can observe notable differences in temperature and humidity. September experiences warmer temperatures, with a minimum of 17°C (63°F) and an average of 25°C (77°F), reaching highs of 30°C (87°F). In contrast, April has much cooler temperatures, ranging from a minimum of 6°C (43°F) to a maximum of 20°C (69°F), with an average of 14°C (57°F). Additionally, September is wetter, receiving 196 mm (7.7 in) of precipitation over 14 days, while April sees less rainfall at 127 mm (5.0 in) across just 8 days. The humidity also differs, with September being more humid at 87% compared to April’s 74%. For more details, you can check Awaji weather in April.
In comparing the weather of September and May, September tends to be warmer with average temperatures reaching 25°C (77°F) and maximums of 30°C (87°F), contrasted with May's cooler average of 18°C (65°F) and maximum of 24°C (75°F). September also experiences more humidity, at 87%, compared to May's 84%, which can make the heat feel more intense. Additionally, September sees more rainfall, totaling 196 mm over approximately 14 days, while May has less precipitation at 153 mm over 10 days. For more detailed insights on May weather, you can visit Awaji weather in May.
In September, the weather tends to be warmer and more humid compared to June, with average temperatures reaching 25°C (77°F) and a maximum of 30°C (87°F). This contrasts with June, where the average is slightly cooler at 22°C (71°F), peaking at 26°C (79°F). Additionally, September experiences more precipitation, totaling 196 mm (7.7 in) over 14 days, while June sees 162 mm (6.4 in) across 11 days. Both months have high humidity levels, but September's humidity at 87% makes it feel even muggier. For more detailed information, you can check Awaji weather in June.
When comparing the weather in September to that of July, September tends to be slightly cooler with average temperatures ranging from 17°C (63°F) to 30°C (87°F), whereas July exhibits higher minimum temperatures starting at 21°C (70°F) and averages around 26°C (78°F). Both months experience similar maximum temperatures, yet July has more humidity at 92%, compared to September's 87%. In terms of precipitation, July receives a considerable amount at 294 mm (11.6 in) over 16 days—more than September's 196 mm (7.7 in) over 14 days. For more detailed information about July's weather, check out Awaji weather in July.
In comparing the weather of September to that of August, we can observe some notable differences. September experiences slightly cooler temperatures, with a minimum of 17°C (63°F) and an average of 25°C (77°F), compared to the warmer August, which has a minimum of 21°C (71°F) and an average of 27°C (82°F). Additionally, September sees increased precipitation, with 196 mm (7.7 in) falling over 14 days, while August has 165 mm (6.5 in) over just 10 days. Humidity remains high in both months, but is marginally lower in September at 87%, compared to August's 92%. For more details, you can check Awaji weather in August.
In September, the weather is generally warmer, with average temperatures reaching up to 25°C (77°F) and maximums hitting 30°C (87°F). The month also experiences significant rainfall, totaling 196 mm (7.7 in) over 14 days, accompanied by high humidity levels at 87%. In contrast, October sees a drop in temperatures, with averages around 20°C (68°F) and maximums of 27°C (80°F), while also experiencing increased precipitation of 260 mm (10.2 in) over just 11 days. Although the humidity decreases slightly to 85%, the shift towards cooler temperatures and greater rainfall marks a clear transition into autumn. For more detailed information, visit Awaji weather in October.
In September, the weather tends to be warm and humid, with temperatures ranging from a minimum of 17°C (63°F) to a maximum of 30°C (87°F) and an average of 25°C (77°F). The month is quite rainy, experiencing precipitation on 14 days, totaling 196 mm (7.7 in), and maintaining a high humidity level of 87%. In contrast, November brings much cooler temperatures, with a minimum of 8°C (46°F), an average of 15°C (59°F), and a maximum of 22°C (72°F). Additionally, November sees significantly less rainfall, with only 57 mm (2.2 in) of precipitation over 8 days and a slightly lower humidity level of 84%. For more details, you can check Awaji weather in November.
September and December present starkly contrasting weather patterns. In September, temperatures range from a mild 17°C (63°F) at night to a warm average of 25°C (77°F) and can peak at a sweltering 30°C (87°F). The month is also characterized by significant rainfall, with 196 mm (7.7 in) falling over 14 days, and humidity levels remain high at 87%. In contrast, December experiences a considerable drop in temperature, with nighttime lows of just 3°C (37°F) and an average of 10°C (50°F), reaching a maximum of 20°C (68°F). Precipitation decreases to 72 mm (2.9 in) over 11 days, and humidity remains relatively lower at 82%. For more detailed insights, you can check Awaji weather in December.
As September unfolds on Awaji Island, the weather presents a unique blend of warmth and humidity, setting it apart from the sweltering summer months and the cooler fall days to come. With an average temperature of 25°C (77°F), the island enjoys pleasantly warm days, while the high humidity of 87% can make it feel more tropical. However, September also brings increased precipitation, with 196 mm (7.7 in) falling over 14 days, marking a transition towards the wetter autumn season. This month is a vivid reminder of nature's dynamism as the landscape begins to shift, making it a captivating time to experience Awaji's climate. For a deeper understanding of the seasonal changes, visit Awaji Climate.