Last updated: August 21, 2025
In September, Toyota, Japan, experiences a dynamic climate characterized by warm temperatures and notable precipitation. The region sees a maximum temperature reaching 34°C (94°F), while the average temperature settles at a pleasant 24°C (75°F), dipping to a minimum of 13°C (55°F) at night. With an impressive 225 mm (8.8 in) of rainfall over approximately 19 rainy days, residents and visitors alike should prepare for a humid atmosphere, as humidity levels hover around 87%. This blend of warmth and moisture contributes to Toyota’s lush landscapes, making it a unique time to explore the area’s natural beauty.
September in Toyota, Japan, marks a transition towards autumn, showcasing a delightful range of temperatures. With a minimum of 13°C (55°F) and a maximum of 34°C (94°F), the month begins to cool from the summer highs, yet still retains a pleasant warmth, reflected in an average of 24°C (75°F). As the sweltering July and August months give way to September, it's evident that the oppressive heat begins to subside, making room for mild days that are perfect for outdoor exploration. This trend suggests an inviting climate that perfectly balances comfort and warmth, inviting both residents and visitors to enjoy the vibrant scenery as the summer foliage gradually gives way to the brilliant hues of fall.
In September, Toyota, Japan experiences significant rainfall, with an average precipitation of 225 mm (8.8 in) over 19 days. This month maintains the trend of high moisture characteristic of the summer season, although it shows a decrease from the peak of 447 mm (17.6 in) in July. Following the wettest months, September serves as a transition into the more moderate rainfall of autumn, yet it still contributes substantially to the yearly total. The steady occurrence of rain underscores the region's lush landscape and vibrant growth as it moves into October, where precipitation increases again to 262 mm (10.3 in), hinting at the shifting patterns of Japan's seasonal weather.
In September, Toyota experiences a notable humidity level of 87%, continuing the trend of high moisture that peaks during the summer months. This is a slight decrease from the sweltering 93% in July and 91% in August, yet still significant enough to maintain the discomfort often associated with Japanese summers. The months leading up to September show a gradual build-up of humidity, with January's 82% being the driest. As the region transitions into autumn, humidity begins to recede, hinting at a more comfortable climate ahead. Overall, September serves as a bridge, where lingering summer humidity gradually yields to the drier, crisper days of October.
In September, Toyota, Japan, experiences a very high UV Index of 10, indicating a significant risk of harm from unprotected sun exposure. As summer transitions to autumn, the burn time remains at 15 minutes, similar to the peak heat of July and August, which suggests that while temperatures may gradually cool, sun safety should still be a priority. This month marks a slight decrease from the extreme levels observed in the preceding summer months, but vigilance is still essential for outdoor activities. Looking at the broader trends throughout the year, the UV Index tends to peak in the summer (with values reaching as high as 12 in July) before tapering off in the fall. For more details on UV safety and to track the UV Index regularly, visit Toyota UV Index.
UV Risk Categories
September brings a vibrant blend of sunshine to Toyota, Japan, as the city basks in 244 hours of bright daylight. This marks a slight dip from the energetic peaks of summer, where August dazzled with an impressive 299 hours. However, September’s warmth remains comforting, reflecting a steady trend in the overall yearly sunshine pattern, with hours gradually increasing from winter's 187 hours in January to summer's bright 292 hours in May. As the greenery transitions into autumn colors, the sunshine of September serves as a gentle reminder of the seasonal shifts, maintaining a harmonious rhythm that prepares residents for the cozy months ahead.
In Toyota, Japan, the likelihood of sunny weather in September stands at 30%, mirroring the somewhat comparable rates of the previous summer months. As the year progresses, sunshine becomes more frequent, particularly in the autumn months, with October seeing a notable jump to 57%. This trend suggests that while September may not boast the brightest days, the transition to fall ushers in a higher chance of clear skies. Interestingly, the late summer months, including July and August, experience lower sunshine probabilities, indicating a potential shift in weather patterns as the year winds down. Overall, while September may keep you guessing with its 30% chance of sunshine, the months that follow promise an uplifting increase in sunny opportunities.
In Toyota, Japan, the sunlight gradually waxes and wanes throughout the year, shaping the city's rhythm. With 10 hours of daylight in both January and February, the sun begins to peek out earlier in March, extending to 11 hours. As spring unfolds, daylight flourishes in April and May, reaching a delightful 13 hours. The longest days arrive in June and July, offering 14 hours of light, perfect for outdoor activities. However, as summer gives way to autumn, daylight starts to diminish; August sees a slight drop to 13 hours, and by September, it settles at 12 hours. This gradual transition reflects the natural ebb and flow of daylight, leading into the shorter days of October, when sunlight recedes back to 11 hours. The cycle concludes with the quiet embrace of winter, where December offers just 9 hours of daylight, a stark reminder of the seasonal changes that define life in Toyota.
As summer's warmth yields to autumn, September in Toyota, Japan, brings a notable shift in wind patterns. With an average wind speed of 2.1 m/s (5 mph), September is one of the calmest months of the year, reflecting the gentle transition from the sweltering heat of summer to the crispness of fall. This marked decrease from the more breezy months of earlier in the year, such as April and May, highlights a trend of diminishing winds as the seasons change. While July and August already hinted at a lull, September solidifies this shift, inviting evenings that are still and serene, perfect for savoring the rich colors of the changing leaves.
Weather in Toyota varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Toyota, focusing on differences in temperature, rainfall, humidity, and UV levels.
September generally showcases warmer and more humid weather compared to January. With temperatures ranging from a minimum of 13°C (55°F) to a maximum of 34°C (94°F), September's average temperature of 24°C (75°F) is significantly higher than January's chilly average of 4°C (40°F). Additionally, September experiences frequent rainfall, with precipitation recorded on 19 days and a total of 225 mm (8.8 in), whereas January sees only 52 mm (2.0 in) of rain over just 5 days. The humidity level in September stands at a high 87%, while January's humidity is moderately lower at 82%. For a detailed look at January weather, you can refer to Toyota weather in January.
September and February present stark contrasts in weather patterns. September typically enjoys a warm climate, with average temperatures around 24°C (75°F) and highs reaching up to 34°C (94°F). However, this month also sees significant precipitation, totaling 225 mm (8.8 in) over 19 days, coupled with high humidity at 87%. In contrast, February is much colder, with average temperatures at just 5°C (42°F) and lows dropping to -3°C (27°F). Precipitation is minimal in February, totaling only 66 mm (2.6 in) over 6 days, and humidity is slightly lower at 79%. For more details, check out the full report on Toyota weather in February.
September and March showcase distinctly different weather patterns. In September, temperatures range from a cool 13°C (55°F) at night to a warm 34°C (94°F) during the day, with an average of 24°C (75°F). The month is characterized by high humidity at 87% and significant rainfall, recording about 225 mm (8.8 in) of precipitation over 19 days. In contrast, March experiences much cooler temperatures, with a minimum of -1°C (30°F) and a maximum of 23°C (74°F), averaging around 10°C (50°F). This month sees less precipitation, totaling 153 mm (6.0 in) across just 11 days, and lower humidity at 74%. For more information on the weather specifics in March, you can refer to Toyota weather in March.
September and April present notably different weather patterns. In September, the temperatures are warmer, with a minimum of 13°C (55°F) and an average of 24°C (75°F), peaking at a sweltering 34°C (94°F). This month also sees significant rainfall, with 225 mm (8.8 in) of precipitation across 19 days and high humidity at 87%. In contrast, April experiences milder temperatures, ranging from a chilly 0°C (32°F) minimum to a comfortable average of 14°C (58°F), peaking at 27°C (81°F). The precipitation is lower in April, totaling 171 mm (6.7 in) over just 11 days, and the humidity sits at a more moderate 76%. For more insights on the weather during this month, you can check this link: Toyota weather in April.
When comparing the weather in September and May, notable differences emerge. September tends to be warmer with average temperatures around 24°C (75°F) and peaks reaching 34°C (94°F), contrasted with May's cooler average of 19°C (66°F) and maximums of 32°C (90°F). Rainfall is more significant in September, accumulating 225 mm (8.8 in) over 19 days, compared to May's 196 mm (7.7 in) spread over just 11 days. Both months experience high humidity, with September slightly higher at 87% compared to May's 83%. For further details on the weather in May, you can visit Toyota weather in May.
When comparing the weather in September and June, both months experience similar temperature ranges, with September having a slightly higher average temperature of 24°C (75°F) compared to June's 22°C (72°F). Notably, both months can reach a maximum of 34°C (93°F), making them quite warm. However, September tends to be wetter, receiving 225 mm (8.8 in) of precipitation over 19 days, while June sees slightly less rainfall at 214 mm (8.4 in) over 15 days. Both months share a high humidity of 87%, contributing to a muggy atmosphere. For more detailed insights on weather in June, you can visit Toyota weather in June.
In comparing the weather of September and July, it’s clear that July tends to be warmer and wetter. The average temperature in July is about 26°C (79°F), reaching a maximum of 37°C (100°F), which is significantly higher than September's average of 24°C (75°F) and a maximum of 34°C (94°F). Additionally, July experiences heavier rainfall, with a total precipitation of 447 mm (17.6 in) over 23 days, compared to September's 225 mm (8.8 in) over 19 days. Humidity levels are also slightly higher in July at 93%, compared to September’s 87%. For more details on July weather, you can check Toyota weather in July.
In comparing the weather between August and September, it's clear that September experiences slightly cooler temperatures, with an average of 24°C (75°F) compared to August's warmer average of 28°C (82°F). The maximum temperature in September reaches 34°C (94°F), which is notably lower than the peak of 37°C (99°F) seen in August. While both months have high humidity levels, September's 87% is a bit less than August's 91%. Rainfall also varies; September sees 225 mm (8.8 in) of precipitation over 19 days, while August has a higher total of 244 mm (9.6 in) across 17 days. For more detailed insights, you can check Toyota weather in August.
September and October showcase a noticeable shift in weather patterns. September tends to be warmer, with average temperatures varying from a minimum of 13°C (55°F) to a maximum of 34°C (94°F) and an average of 24°C (75°F). However, it is also quite humid, with an average humidity of 87% and substantial rainfall, totaling 225 mm (8.8 in) over 19 days. In contrast, October brings cooler temperatures, with a minimum of 7°C (45°F), an average of 18°C (65°F), and a maximum of 30°C (87°F). While it remains rainy, October experiences slightly more precipitation at 262 mm (10.3 in) over 14 days, and humidity drops to 85%. For detailed weather insights in October, check out Toyota weather in October.
September and November present notably different weather patterns. In September, temperatures range from a minimum of 13°C (55°F) to a scorching maximum of 34°C (94°F), with an average of 24°C (75°F). The month experiences significant rainfall, totaling 225 mm (8.8 in) over 19 days, accompanied by high humidity at 87%. Conversely, November sees much cooler temperatures, with lows dropping to 0°C (33°F) and an average of 12°C (55°F), peaking at 23°C (73°F). Precipitation is markedly less, at 61 mm (2.4 in) across just 6 days, and humidity decreases slightly to 83%. For more details, check out Toyota weather in November.
September weather features a warm and humid atmosphere, with temperatures ranging from a minimum of 13°C (55°F) to a maximum of 34°C (94°F), and an average temperature of 24°C (75°F). The month is quite wet, with significant precipitation of 225 mm (8.8 in) occurring over 19 days, contributing to a high humidity level of 87%.
In contrast, December presents a much cooler and drier climate, with temperatures dropping to a minimum of -5°C (24°F) and peaking at a maximum of 20°C (69°F), averaging around 7°C (45°F). The month sees only 62 mm (2.4 in) of precipitation over just 7 days, leading to a humidity level of 83%.
For more insights on December weather, you can visit Toyota weather in December.
As September rolls in, Toyota experiences a notable shift in weather compared to the summer months. While the warmth continues, with average temperatures hovering around a comfortable 24°C, the increase in humidity to a staggering 87% and substantial precipitation over 19 days signal the onset of the rainy season. This month is characterized by its lush landscapes brought on by rainfall, making it distinct from the drier, hotter days of summer. For a more detailed overview of what to expect throughout the year, check out Toyota Climate.