Last updated: August 21, 2025
Experience the vibrant climate of Ito, Japan in September, where the temperatures soar with a maximum of 33°C (91°F) and settle at a comfortable average of 23°C (74°F). With cooler nights, the minimum dips to around 15°C (60°F), providing a pleasant respite. However, prepare for frequent rain, as the town experiences approximately 221 mm (8.7 in) of precipitation over 20 days, resulting in a lush, green landscape. The humidity levels can be high at 86%, adding a warm and tropical feel to this scenic coastal destination. Whether exploring its hot springs or beautiful coastlines, September in Ito promises a dynamic and enticing experience for all visitors.
In September, temperatures in Ito, Japan begin to soften as summer transitions into autumn, inviting the perfect blend of warmth and comfort. The minimum temperature hovers at a pleasant 15°C (60°F), while the average climbs to a comfortable 23°C (74°F), peaking at a balmy 33°C (91°F). This transitional month reflects the last whispers of summer, making it an ideal time for outdoor activities, as daytime warmth gradually yields to the cooler nights. As the leaves begin to change and the humidity lessens, September offers a beautiful snapshot of nature’s shift, showcasing how Ito effortlessly balances the lingering heat with the promise of fall.
September in Ito, Japan, brings a notable shift in precipitation patterns, with 221 mm (8.7 in) of rainfall recorded over an average of 20 days. This marks a significant increase compared to the summer months, highlighting the transition into the wetter fall season. Following the relatively drier August, where only 176 mm (6.9 in) fell over 17 days, September’s consistent rain contributes to the lush landscapes and vibrant scenery that characterize this time of year. As the month ends, the precipitation continues to rise, setting the stage for even higher totals in October, further solidifying Ito's reputation as a region rich in rainfall and natural beauty.
In September, humidity in Ito, Japan typically hovers around 86%, marking a slight decline from the sweltering highs of the summer months, which see humidity levels peak at an impressive 93% in July. This gradual decrease reflects the transition into autumn, as September's humidity remains noticeably elevated compared to winter months like January, where it descends to 76%. The overall trend illustrates a clear seasonal rhythm, with humidity consistently rising from early spring and hitting its zenith in the summer, before tapering off as the year progresses. As such, September serves as a bridge, offering a blend of the lingering warmth of summer while hinting at the cooler, crisper days to come.
In September, Ito, Japan observes a UV Index of 10, indicating a very high exposure risk and a burn time of just 15 minutes. This marks a slight decline from the peak UV Index of 12 experienced in July, yet the intensity of the sun remains significant as summer transitions into autumn. As the days gradually shorten, it's crucial to remain vigilant about sun protection, especially during midday hours. Notably, the UV Index trends highlight an overall pattern of increasing sun intensity from January through August, peaking in the summer months before tapering off into October. For more detailed information on UV levels, visit Ito UV Index.
UV Risk Categories
September is a delightful month in Ito, Japan, showcasing 236 hours of sunshine as the summer warmth begins to ebb. This is part of a broader trend where the region enjoys its most radiant days in late summer, peaking at 285 hours in August. As the seasons transition into autumn, September still retains a healthy amount of sunshine, although it's slightly less than the vibrant summer months. Following September, the sun’s embrace gradually diminishes, with October dipping down to 201 hours. This gradual decrease serves as a reminder of the shifting seasons, making September a particularly appealing time for outdoor activities and enjoying the lingering warmth before the cooler months set in.
September in Ito, Japan, offers a modest chance of sunny weather, with the likelihood hovering at 31%. This marks a slight uptick from the summer months of July and August, which both see a mere 30% and 33% chance of sunshine respectively. As the season transitions into autumn, the gradual improvement contrasts with the much lower probabilities experienced during the rainy months of June (22%) and July. With October seeing a notable increase to 44%, September serves as a bridge, allowing occasional glimpses of sun as the landscape begins to shift into vibrant fall colors, making it a pleasant time for outdoor activities amidst the lingering warmth.
As September arrives in Ito, Japan, the days begin to shorten, offering around 12 hours of daylight. This marks a gradual decline from the summer peak of 14 hours in June, July, and August, where the sun graced the sky for extended periods. The transition from late summer to autumn is evident, as daylight hours ebb closer to the 11-hour mark that characterizes October. This pattern reflects a broader annual trend, where longer, sun-soaked days in spring and summer give way to the quieter, introspective days of fall and winter. Such changes not only signal the shift in seasons but also evoke a sense of beauty and anticipation for the evolving landscape and cooler temperatures ahead.
As summer transitions to autumn in Ito, Japan, the winds in September maintain a gentle yet consistent rhythm, averaging 2.9 m/s (7 mph). This slight uptick from the calmer breezes of June and July, both at 2.0 m/s, hints at nature's subtle shift toward the energetic months ahead. Interestingly, the wind picks up momentum in the cooler months, peaking in November at 3.1 m/s, before reverting to a steady pace as winter approaches. Overall, September stands as a tranquil bridge between the languid summer seas and the invigorating gusts of fall, inviting both locals and visitors to bask in its serene yet vibrant atmosphere.
Weather in Ito varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Ito, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather is warm and humid, with average temperatures hovering around 23°C (74°F) and reaching highs of 33°C (91°F). The month also sees significant rainfall, totaling 221 mm (8.7 in) across approximately 20 days, resulting in a humidity level of 86%. In stark contrast, January features much cooler conditions, with average temperatures only around 7°C (44°F) and maximums peaking at 18°C (64°F). Precipitation during this month drops to 68 mm (2.7 in) over just 5 days, and the humidity level decreases to 76%. For a more detailed comparison of January weather, please visit Ito weather in January.
September and February present starkly contrasting weather conditions. In September, temperatures range from a mild 15°C (60°F) to a sultry 33°C (91°F), with an average temperature of 23°C (74°F). This month is characterized by high humidity at 86% and frequent rain, totaling 221 mm (8.7 in) over about 20 days. In contrast, February experiences much colder temperatures, with a minimum of -1°C (30°F) and a maximum of 19°C (67°F), yielding an average of only 7°C (45°F). Precipitation is significantly lower at 83 mm (3.2 in) over just 8 days, and humidity levels drop to 74%. For more details about February weather, visit Ito weather in February.
September and March present distinctly different weather patterns. In September, temperatures are generally warmer, ranging from a minimum of 15°C (60°F) to a maximum of 33°C (91°F), with an average around 23°C (74°F). The month is also characterized by high humidity at 86% and considerable precipitation, totaling 221 mm (8.7 in) over about 20 days. In contrast, March sees cooler temperatures, with a minimum of 1°C (34°F) and a maximum of 22°C (72°F), averaging 11°C (51°F). Precipitation is slightly lower in March at 196 mm (7.7 in) over 13 days, accompanied by a much lower humidity level of 70%. For a more detailed look at March weather in the area, check out Ito weather in March.
September weather is characterized by warmer temperatures, with an average of 23°C (74°F), while April experiences a cooler average of 14°C (57°F). The maximum temperature in September can reach up to 33°C (91°F), compared to April's peak of 24°C (76°F). Additionally, September sees significantly more rainfall, with 221 mm (8.7 in) over about 20 days, while April has a total of 168 mm (6.6 in) spread over just 11 days. Humidity levels are also higher in September at 86%, compared to April's more comfortable 74%. For a detailed comparison of weather in April, you can visit Ito weather in April.
In September, the weather tends to be warmer and more humid compared to May, with temperatures ranging from a minimum of 15°C (60°F) to a maximum of 33°C (91°F) and an average of 23°C (74°F). In contrast, May experiences cooler temperatures, with lows of 9°C (48°F), highs of 28°C (82°F), and an average of 18°C (65°F). Additionally, September sees significantly more rainfall, with 221 mm (8.7 in) over 20 days, whereas May has 194 mm (7.6 in) of precipitation spread over 12 days. Despite being slightly drier, May's humidity is still notable at 81%, compared to September's higher 86%. For more detailed information on weather patterns in May, you can refer to this link: Ito weather in May.
In comparing the weather between June and September, we observe some notable differences. September experiences a higher average temperature of 23°C (74°F) compared to June's 21°C (71°F) and also sees maximum temperatures reaching up to 33°C (91°F), making it warmer overall. However, September is wetter, with precipitation at 221 mm (8.7 inches) occurring over 20 days, whereas June has slightly higher rainfall at 263 mm (10.3 inches) across 17 days. Humidity levels are comparable, with September at 86% and June slightly higher at 88%. For more detailed insights, you can check Ito weather in June.
In comparing the weather between September and July, we note a few key differences. September experiences slightly cooler temperatures, with a minimum of 15°C (60°F) and an average of 23°C (74°F), compared to July's minimum of 18°C (65°F) and an average of 25°C (77°F). Both months share a maximum temperature of around 33°C (91°F in September and 92°F in July), indicating consistent summer heat. However, September is marked by significantly higher rainfall, accumulating 221 mm (8.7 in) over 20 days, while July sees 326 mm (12.8 in) of precipitation over just 19 days. The humidity is also notably higher in July at 93%, compared to September's 86%. For a closer look at the weather conditions in July, you can visit Ito weather in July.
In comparing the weather of September and August, September experiences slightly cooler temperatures, with an average of 23°C (74°F) compared to August's warmer 27°C (81°F). While both months are characterized by high humidity, September shows a marginally lower level at 86% compared to August's 90%. Precipitation is more prevalent in September, with 221 mm (8.7 in) over 20 days, in contrast to August's 176 mm (6.9 in) across 17 days. For more detailed insights into August weather, you can check out Ito weather in August.
In September, temperatures in Ito range from a minimum of 15°C (60°F) to a maximum of 33°C (91°F), with an average of 23°C (74°F). The month sees significant precipitation of 221 mm (8.7 in) over 20 days, along with high humidity at 86%. In contrast, October brings cooler weather, with temperatures dipping to a minimum of 11°C (52°F) and peaking at 29°C (84°F), averaging around 19°C (66°F). Despite having fewer rainy days (16), October experiences an increase in precipitation, totaling 305 mm (12.0 in), while humidity slightly decreases to 83%. For more detailed insights, check out Ito weather in October.
September and November weather show stark contrasts in temperature and precipitation. September typically boasts warmer temperatures, with daily averages reaching up to 23°C (74°F) and peak highs of 33°C (91°F), while November sees much cooler conditions, with averages around 14°C (58°F) and maximums hitting only 22°C (72°F). Additionally, September experiences significantly more rainfall, totaling 221 mm (8.7 in) over approximately 20 days, compared to November's 94 mm (3.7 in) across just 10 days. Humidity levels are also slightly higher in September at 86%, compared to November's 80%. For more details on the weather in November, you can refer to Ito weather in November.
September and December showcase a dramatic contrast in weather. September experiences much warmer temperatures, with an average of 23°C (74°F) and maximums soaring up to 33°C (91°F). However, it is also characterized by high humidity at 86% and frequent precipitation, totaling 221 mm (8.7 inches) over about 20 days. In contrast, December offers a cooler climate, with temperatures ranging from a minimum of 0°C (32°F) to a maximum of 21°C (69°F) and a considerably lower average of 9°C (49°F). Rainfall in December is also less frequent and lighter, with only 74 mm (2.9 inches) over 8 days and humidity levels dropping to 78%. For more specific information about how weather conditions in December affect the area, you can check Ito weather in December.
As September rolls in, Ito experiences a notable shift in weather, marked by a blend of warmth and humidity. The days are still warm, with maximum temperatures inviting outdoor activities, while the average provides a comfortable respite from the summer heat. However, this month also brings increased precipitation, with rain showers making their appearance more frequent, resulting in a higher humidity level that can feel quite muggy at times. This contrasts sharply with the drier conditions of the preceding summer months. Whether you're exploring the lush surroundings or seeking refuge from the rain, September in Ito offers a unique climate experience. For a deeper dive into the weather patterns, check out Ito Climate.