Last updated: August 21, 2025
In September, Imari, Japan, experiences a vibrant tapestry of weather, characterized by a maximum temperature of 34°C (94°F) and an average of 24°C (76°F), creating warm and inviting days. However, as autumn approaches, the minimum temperature dips to 16°C (61°F), offering a refreshing reprieve. This month is also marked by considerable precipitation, with a total of 218 mm (8.6 in) over 15 days, contributing to the region's verdant landscapes. The high humidity level of 84% adds to the tropical feel, making it an ideal time for those who enjoy lush scenery and warm climates.
In September, temperatures in Imari, Japan begin to shift, gracefully transitioning from the intense summer heat. With a minimum of 16°C (61°F) and an average of 24°C (76°F), the mild warmth is still pleasant, while the maximum can reach a sizzling 34°C (94°F). This month marks a subtle decline from the sweltering heights of August, where temperatures soared into the 38°C (100°F) range. As autumn approaches, the climate offers a refreshing change, making it an ideal time to enjoy the vibrant scenery and rich cultural experiences that Imari has to offer.
In September, Imari experiences a notable shift in weather patterns, with precipitation averaging 218 mm (8.6 in) over 15 days. This marks a continuation of the abundant rainfall seen throughout the summer months, particularly after July's peak of 385 mm (15.2 in). While September’s precipitation is slightly less than August’s 297 mm (11.7 in), it still underscores the region's wet season, which typically extends through early autumn. This seasonal transition not only replenishes the local environment but also signals the gradual decline in rain observed as the year progresses, with October further declining to 116 mm (4.6 in). The consistent rainfall presents a lush and vibrant landscape, yet also highlights the importance of preparation for those living in this picturesque coastal town.
In September, Imari, Japan experiences a notable decrease in humidity, settling at 84% following the peak summer months. This shift marks a transition from the oppressive 97% humidity of July and 94% in August, signaling the gradual departure of the sweltering summer heat. As temperatures begin to cool, the humidity starts to align more closely with the autumn months, such as October's 79% and November's 75%. Overall, September serves as a pivotal point where the lingering summer moisture gives way to the crispness of fall, offering a refreshing relief and a beautiful backdrop for seasonal changes.
As September rolls around in Imari, Japan, the UV Index registers a notable 11, categorizing it as extreme and demanding vigilance against sun exposure. This trend reflects the peak of summer's intensity, where the burn time is reduced to just 10 minutes. Following the scorching summer months of July and August, the UV Index begins to decline slightly, yet remains significantly high, indicating that residents and visitors should continuously prioritize sun protection. As the year progresses into October, the UV Index drops to 7, indicating a transition to a safer exposure level. Awareness of these patterns is essential for enjoying the outdoors responsibly. For more details, check the Imari UV Index.
UV Risk Categories
In September, Imari, Japan, basks in a delightful 254 hours of sunshine, continuing the trend of abundant daylight that peaks in the summer months. After a vibrant August with a remarkable 297 hours of sun, September gracefully transitions into autumn, maintaining a generous supply of sunlight that outshines earlier months like January and February. As the daylight dims in the following months, with October and November seeing slight declines, September stands out as a perfect time to enjoy the warm rays before the cooler weather settles in. This balance of sun and seasonal change sets the stage for picturesque landscapes and a rich cultural tapestry, inviting residents and visitors alike to revel in the beauty of the Japanese autumn.
In Imari, Japan, the likelihood of experiencing sunny weather in September stands at 32%, offering a modest chance for those looking to bask in the sun before autumn sets in. As summer fades, this percentage is indeed higher than the peak months of July and June, which see sun probabilities dipping to 20% and 24%, respectively. While May boasts a slightly lower chance at 32%, the transition into the more temperate conditions of October reveals a significant shift, with sunny days soaring to 62%. Thus, September serves as a bridge, promising glimpses of sunshine amid the waning warmth and hinting at the delightful sunny days that are just around the corner.
As summer transitions into autumn, September in Imari, Japan, offers a gentle reduction in daylight duration, averaging around 12 hours. Following the peak of 14 hours in June and July, the days gradually shorten, marking a shift towards the cozier months ahead. This month is characterized by a delightful balance, still basking in significant sunlight while hinting at the approach of fall. With daylight tapering off from the summer high, residents and visitors alike can relish the warming hues of early autumn, ensuring that both outdoor activities and nature walks remain enchanting before the shorter days of October set in.
In September, Imari experiences a gentle average wind speed of 2.4 m/s (5 mph), aligning with the quieter breezes of the late summer months. As the season transitions, the winds remain relatively calm, similar to the softer gusts observed in August. This slight stability in wind patterns showcases a consistent trend, with speeds gradually decreasing from the livelier January winds of 3.1 m/s. Interestingly, while June marks the lowest wind speeds of the year at 1.8 m/s, September's gentle currents suggest a return to a delicate balance in nature's rhythm, providing a serene backdrop to the scenic beauty of Imari as autumn approaches.
Weather in Imari varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Imari, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present contrasting weather patterns. In September, temperatures range from a mild 16°C (61°F) at night to a warm 34°C (94°F) during the day, with an average of 24°C (76°F). The month experiences considerable rainfall, with 218 mm (8.6 in) falling over 15 days, contributing to high humidity levels of 84%. In stark contrast, January sees much cooler temperatures, dropping as low as -2°C (28°F) at night and reaching a maximum of 18°C (64°F), with an average of only 7°C (44°F). The precipitation decreases significantly to 56 mm (2.2 in) over just 7 days, and humidity levels are lower at 73%. For a closer look at the January weather specifics, you can visit this link: Imari weather in January.
September and February present starkly contrasting weather conditions. In September, temperatures are considerably warmer, ranging from a minimum of 16°C (61°F) to a maximum of 34°C (94°F), with an average of 24°C (76°F). However, this month is also characterized by high humidity at 84% and significant rainfall, totaling 218 mm (8.6 in) over about 15 days. In contrast, February experiences much cooler temperatures, with a minimum of -2°C (29°F) and a maximum of 21°C (70°F), averaging around 7°C (45°F). Precipitation is notably less in February, amounting to 80 mm (3.2 in) over 10 days, and the humidity level is lower at 69%. For more detailed insights into February weather, you can visit Imari weather in February.
September and March present strikingly different weather patterns. September enjoys warmer temperatures, with a minimum of 16°C (61°F) and an average of 24°C (76°F), peaking at a high of 34°C (94°F). However, this month also experiences considerable rainfall, totaling 218 mm (8.6 in) across approximately 15 days, contributing to high humidity levels of 84%. In contrast, March is cooler, with temperatures ranging from a minimum of 2°C (36°F) to an average of 11°C (53°F), reaching a maximum of 23°C (73°F). The precipitation in March is lower, totaling 136 mm (5.3 in) over about 10 days and with a humidity level of 71%. For more insights on the weather during this month, check out Imari weather in March.
September and April exhibit quite different weather patterns. In September, temperatures range from a minimum of 16°C (61°F) to a maximum of 34°C (94°F), with an average of 24°C (76°F). The month is characterized by high humidity at 84% and significant rainfall, receiving 218 mm (8.6 in) over 15 days. In contrast, April experiences cooler temperatures, with a minimum of 4°C (39°F) and a maximum of 29°C (84°F), averaging at 15°C (60°F). It also sees less rainfall at 118 mm (4.7 in) over 9 days, and humidity slightly lower at 79%. For more detailed information, you can visit Imari weather in April.
September and May exhibit distinct weather characteristics, reflecting the transitions of seasons. In September, temperatures see a minimum of 16°C (61°F), averaging 24°C (76°F) and peaking at a warm 34°C (94°F). The month is marked by significant rainfall, with approximately 218 mm (8.6 in) over 15 days and a high humidity level of 84%. In contrast, May experiences cooler temperatures with a minimum of 8°C (46°F), an average of 20°C (68°F), and a maximum of 30°C (86°F). The precipitation in May is relatively lower at 177 mm (7.0 in) spread over 11 days, accompanied by a slightly higher humidity of 87%. For those looking to explore the weather further, you can check out Imari weather in May.
When comparing the weather in September and June, September generally exhibits slightly warmer temperatures, with averages reaching 24°C (76°F) compared to June's average of 23°C (74°F). While both months experience relatively high humidity, September's average humidity is 84%, slightly lower than June's 91%. In terms of precipitation, September sees a bit more rain, totaling 218 mm (8.6 in) over 15 days, while June has 209 mm (8.2 in) over 13 days. For more detailed information, you can view Imari weather in June.
September's weather is slightly cooler than July, with average temperatures ranging from a minimum of 16°C (61°F) to a maximum of 34°C (94°F). Despite being warmer, July experiences higher average temperatures, with a minimum of 18°C (65°F), an average of 27°C (80°F), and a maximum of 36°C (97°F). Precipitation is also more pronounced in July, totaling 385 mm (15.2 in) over 18 days, compared to September’s 218 mm (8.6 in) over 15 days. Additionally, humidity levels are noticeably higher in July at 97%, compared to 84% in September. For a more detailed look at July's weather patterns, visit Imari weather in July.
In comparing the weather between August and September, we see a noticeable shift in temperature and conditions. August features higher average temperatures, with a minimum of 19°C (67°F) and a peak of 38°C (100°F), while September's range is more moderate, with a minimum of 16°C (61°F) and a maximum of 34°C (94°F). Humidity levels are also slightly lower in September at 84%, compared to August's 94%, suggesting a bit more comfort as the month progresses. However, September brings increased rainfall, with 218 mm (8.6 in) over 15 days, compared to August's 297 mm (11.7 in) over the same number of days. For a deeper look into August conditions, you can check Imari weather in August.
September and October present a noticeable shift in weather patterns. In September, temperatures range from a mild 16°C (61°F) to a scorching high of 34°C (94°F), with an average of 24°C (76°F). This month also experiences significant rainfall, totaling 218 mm (8.6 in) over 15 days and high humidity levels at 84%. In contrast, October brings cooler temperatures with a minimum of 10°C (49°F) and an average of 19°C (67°F), peaking at 31°C (88°F). Rainfall decreases to 116 mm (4.6 in) over just 9 days, and humidity slightly drops to 79%. For more details on the weather specifics in October, you can check Imari weather in October.
September and November exhibit striking differences in weather patterns. In September, temperatures range from a minimum of 16°C (61°F) to a maximum of 34°C (94°F), with an average of 24°C (76°F). Rain is frequent, with approximately 218 mm (8.6 in) of precipitation spread over 15 days and high humidity at 84%. In contrast, November sees much cooler temperatures, with highs only reaching 24°C (76°F) and lows dropping to around 3°C (37°F), and an average of 14°C (57°F). Precipitation also decreases significantly to 55 mm (2.2 in) over just 7 days, accompanied by a lower humidity of 75%. For more detailed information, check out Imari weather in November.
September and December present a stark contrast in weather. September is characterized by warm temperatures, with a minimum of 16°C (61°F), an average of 24°C (76°F), and a maximum reaching up to 34°C (94°F). Additionally, it experiences considerable rainfall, totaling 218 mm (8.6 in) over 15 days, along with high humidity levels at 84%. In contrast, December brings a cooler, drier climate, with temperatures ranging from a minimum of 0°C (32°F) to a maximum of 23°C (73°F), averaging around 8°C (48°F). Precipitation drops significantly to 76 mm (3.0 in) over just 7 days, and humidity decreases to 72%. For more detailed information on the weather in December, you can refer to Imari weather in December.
As summer transitions into autumn, September in Imari offers a distinct change in weather compared to the hotter months that precede it. While temperatures remain warm, with highs reaching into the low thirties, the month is marked by an increase in humidity and significant precipitation, making it one of the wetter times of the year. The lush greenery and refreshed scenery contribute to the city's charm, although the frequent rainfall—spreading over nearly half the month—invites the cozy side of early autumn. For those looking to explore the unique climate and its influences, more details can be found at Imari Climate.