Last updated: August 21, 2025
In Motegi, Japan, September weather presents a dynamic mix of warmth and moisture, with maximum temperatures reaching a sweltering 34°C (94°F) and an average temperature around 23°C (73°F). Despite these balmy conditions, the minimum temperatures drop to a refreshing 12°C (54°F) at night, offering some relief from the daytime heat. Precipitation is notable this month, with 169 mm (6.7 in) of rain falling over 18 days, resulting in a high humidity level of 84%. This combination of warmth and moisture creates a lush and vibrant atmosphere, perfect for experiencing the beauty of the season in Motegi.
In September, Motegi, Japan experiences a delightful transition as summer begins to wane, with temperatures reflecting a noticeable shift. The minimum temperature hovers around 12°C (54°F), providing a comfortable start to the day. By midday, the average climbs to a pleasant 23°C (73°F), perfect for outdoor activities. The warmth peaks with highs of 34°C (94°F), echoing the lingering summer heat. This month's climate demonstrates a gradual cooling trend after the sizzling heat of August, setting the stage for the crisp autumn air that follows in October. Overall, September in Motegi strikes a harmonious balance between lingering warmth and the refreshing hints of the upcoming season.
In September, Motegi, Japan, experiences a significant uptick in precipitation, with an average of 169 mm (6.7 in) falling over 18 days. This marks a peak in the late summer rains, just after August's substantial 140 mm. The transition from the sweltering summer months to the cooler autumn brings not only increased moisture but also a pattern of persistent rainfall. With a consistency in precipitation days, this month sets the stage for October, which usually follows with even heavier rainfall, peaking at 225 mm. The rhythm of September's wet weather highlights a clear trend of escalating precipitation as Motegi moves from summer's end into autumn, enhancing the lush landscapes that define the region during this season.
In September, Motegi, Japan, experiences a noticeable drop in humidity compared to the sweltering summer months, with levels averaging around 84%. This figure represents a slight decrease from the peak of 92% in July and 90% in August, marking a transition towards the cooler autumn season. As the year progresses, humidity remains relatively high in late summer but starts to decline, evident from the consistent decrease from May’s 80%. This trend highlights how Motegi’s climate shifts from the stifling mugginess of summer to a more temperate feel as fall approaches, creating a refreshing atmosphere for residents and visitors alike.
In September, Motegi, Japan, experiences a UV Index of 9, falling into the very high exposure category. This trend showcases a slight decline from the intense summer months of June and July, which peaked at an extreme UV Index of 11. Despite this reduction, the risk of skin damage remains significant, with a burn time of just 15 minutes under these conditions. As summer transitions to autumn, residents and visitors alike should remain vigilant and utilize sun protection measures. For an in-depth look at UV levels throughout the year, visit Motegi UV Index.
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In September, Motegi, Japan, enjoys a delightful 240 hours of sunshine, contributing to its warm and inviting atmosphere as summer begins to fade. The month continues a trend of abundant sunlight that swells during the summer months, with August peaking at an impressive 288 hours. Following this radiant high, September sees a slight dip, yet it remains comfortably above the early months of the year. As autumn approaches, the days gradually shorten, with sunlight hours tapering off in October to 214 hours. This transition showcases the beautiful interplay between the vibrant summer days and the cooler, crisp air of early autumn, making September a perfect time to experience Motegi's scenic landscapes.
In Motegi, Japan, the likelihood of sunny weather takes a noticeable dip in September, with only a 26% chance of sunshine. This marks a continuation of a generally overcast trend that begins mid-summer, where July and August see similarly low probabilities of sun at 27% and 28%, respectively. Interestingly, as the season transitions into fall, the chances for clear skies begin to pick up again in October, climbing to 45%. Thus, while September may not be the sunniest month to explore the outdoors, the promise of brighter days is just around the corner as autumn unfolds.
In September, Motegi, Japan, experiences a gentle transition as daylight hours begin to wane, offering approximately 12 hours of light each day. This marks a gradual decrease from the peak of 14 hours seen during the vibrant months of May through July, where summer's lushness thrives under extended sunlight. As the seasons shift, daylight starts to retreat, hinting at the approach of autumn. This trend reflects a natural rhythm, with daylight hours decreasing further to 11 hours in October and settling at 10 hours by November. September serves as a beautiful bridge between the long summer days and the shorter daylight periods that follow, allowing residents to savor the last warm touches of summer while preparing for the cozy embrace of fall.
As September arrives in Motegi, Japan, the wind carries a gentle reminder of the summer's fading whispers, with an average speed of 2.4 m/s (5 mph), similar to the breezes of August. This stability reflects a broader trend throughout the latter months, where wind speeds remain consistent, fluctuating slightly from 2.4 m/s in September to 2.1 m/s in November. Notably, the summer months saw a gradual decline from a high of 2.9 m/s in April to the softer currents of July, demonstrating a retreating warmth. As autumn unfolds, the soothing winds invite contemplation, offering a soft transition into the cooler months ahead.
Weather in Motegi varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Motegi, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January offer strikingly different weather conditions. In September, temperatures range from a mild 12°C (54°F) at night to a warm average of 23°C (73°F), peaking at a sweltering 34°C (94°F) during the day. This month also sees considerable rainfall, with 169 mm (6.7 in) spread across 18 days, contributing to a high humidity of 84%. In contrast, January experiences a much colder climate, with temperatures dropping as low as -10°C (15°F) and averaging around 4°C (39°F), reaching a maximum of 16°C (61°F). Precipitation is significantly less in January, totaling only 41 mm (1.6 in) over 5 days, and humidity drops to 76%. For a detailed look at January weather, you can visit Motegi weather in January.
September and February present strikingly different weather conditions. In September, temperatures range from a minimum of 12°C (54°F) to a maximum of 34°C (94°F), with an average of 23°C (73°F). This month is characterized by significant rainfall, totaling 169 mm (6.7 in) over 18 days, alongside high humidity levels of 84%. In contrast, February experiences much cooler temperatures, with lows dropping to -5°C (23°F) and highs reaching only 20°C (69°F), averaging around 5°C (41°F). Precipitation decreases markedly to 40 mm (1.6 in) over just 7 days, and humidity is lower at 75%. This stark contrast highlights the shift from the warm, wet climate of September to the cold and drier atmosphere of February. For more about February weather specifics, visit Motegi weather in February.
September and March present contrasting weather conditions. In September, temperatures range from a mild 12°C (54°F) at night to a sweltering 34°C (94°F) during the day, with an average temperature of 23°C (73°F). This month is characterized by high humidity at 84% and substantial rainfall, averaging 169 mm (6.7 in) over 18 days. In stark contrast, March experiences much cooler temperatures, with a minimum of -4°C (25°F) and a maximum of 23°C (74°F), averaging only 9°C (48°F). The precipitation in March is lighter at 137 mm (5.4 in) and occurs over just 10 days, accompanied by lower humidity at 72%. For more detailed weather insights, you can check Motegi weather in March.
September and April present contrasting weather characteristics. In September, temperatures range from a mild 12°C (54°F) at night to a sweltering 34°C (94°F) during the day, averaging 23°C (73°F). The month tends to be quite humid, with an average humidity of 84% and significant rainfall of 169 mm (6.7 in) over 18 days. In comparison, April showcases a cooler climate, with temperatures dipping to a minimum of -1°C (31°F) and reaching a maximum of 28°C (82°F), averaging 13°C (56°F). Precipitation in April is lower, at 122 mm (4.8 in) over just 12 days, and the humidity is also less, averaging 73%. For a closer look at April weather specifics, check out Motegi weather in April.
September and May present contrasting weather patterns. In September, temperatures range from a minimum of 12°C (54°F) to a sweltering maximum of 34°C (94°F), with an average temperature of 23°C (73°F). The month is marked by high humidity at 84% and significant precipitation of 169 mm (6.7 in) over 18 days. In contrast, May features milder conditions, with minimum temperatures dipping to 6°C (43°F) and a maximum of 32°C (91°F), averaging 18°C (65°F). Rainfall in May is also less, at 132 mm (5.2 in) over 13 days, accompanied by a slightly lower humidity level of 80%. For more detailed information, you can check out Motegi weather in May.
In comparing the weather between September and June, both months experience similar minimum temperatures, with September slightly warmer at a minimum of 12°C (54°F) compared to June's 12°C (53°F). However, September boasts a higher average temperature of 23°C (73°F) and can reach a maximum of 34°C (94°F), while June has a lower average of 21°C (70°F) with a peak of 32°C (90°F). Precipitation levels are also notable, with September receiving 169 mm (6.7 in) over 18 days, compared to June's 141 mm (5.5 in) over 16 days. Humidity levels are high in both months, though slightly more in June at 87% versus September's 84%. For a closer look at June weather specifics, you can visit Motegi weather in June.
When comparing the weather in September to July, it's clear that September experiences slightly cooler temperatures, with an average of 23°C (73°F) compared to July's 25°C (77°F). July tends to have warmer nights with a minimum temperature of 17°C (63°F), whereas September starts off cooler with a minimum of 12°C (54°F). Precipitation is notably higher in July, totaling 226 mm (8.9 in) over 20 days, compared to September's 169 mm (6.7 in) over 18 days, indicating that July is generally wetter. Additionally, humidity is higher in July at 92%, compared to 84% in September, making July feel more oppressive. For more detailed insights about July weather, visit Motegi weather in July.
In comparing the weather of September to August, we see notable shifts in temperature and precipitation. September experiences a broader temperature range, with minimums of 12°C and maximums reaching up to 34°C, averaging around 23°C. In contrast, August is warmer overall, with minimum temperatures of 16°C, maximums hitting 36°C, and an average of 27°C. September also brings increased rainfall, accumulating 169 mm over 18 days, whereas August has slightly less precipitation at 140 mm over 16 days. Humidity levels remain high in both months, but September's 84% is slightly lower than August's peak of 90%. For more specifics on August’s climate, you can visit Motegi weather in August.
September and October exhibit notable differences in weather patterns. In September, temperatures range from a minimum of 12°C (54°F) to a maximum of 34°C (94°F), with an average of 23°C (73°F). The month is characterized by high humidity at 84% and significant rainfall of 169 mm (6.7 in) spread over 18 days. In contrast, October sees a drop in temperatures, with a minimum of 6°C (42°F) and an average of 17°C (63°F), despite still reaching a peak of 31°C (89°F). Rainfall increases to 225 mm (8.9 in) but occurs over fewer days, totaling 13. The humidity slightly decreases to 80%. For a more detailed look at October weather in Motegi, you can visit Motegi weather in October.
September and November present strikingly different weather patterns. In September, temperatures range from a warm minimum of 12°C (54°F) to a scorching maximum of 34°C (94°F), with an average of 23°C (73°F). The month experiences significant rainfall, totaling 169 mm (6.7 in) over 18 days, coupled with high humidity at 84%. In contrast, November sees a notable drop in temperatures, with a minimum of -1°C (30°F), an average of 12°C (54°F), and a maximum of 22°C (73°F). Rainfall is considerably less in November, amounting to 69 mm (2.7 in) over just 7 days, and humidity decreases to 77%. For a detailed look at Motegi's weather during this month, visit Motegi weather in November.
September and December present stark contrasts in weather conditions. In September, temperatures range from a mild minimum of 12°C (54°F) to a scorching maximum of 34°C (94°F), with an average of 23°C (73°F). The month is marked by significant rainfall, totaling 169 mm (6.7 in) over 18 days, and high humidity levels at 84%. In contrast, December experiences much cooler temperatures, with a minimum of -3°C (28°F), an average of 6°C (43°F), and a maximum of 19°C (66°F). Precipitation drops to 56 mm (2.2 in) over just 6 days, accompanied by a slightly lower humidity of 77%. For a more detailed look at December weather in Motegi, visit Motegi weather in December.
As September unfolds in Motegi, the weather showcases a unique blend of warmth and moisture, setting it apart from the more stable conditions of summer and the crispness of autumn that follows. During this month, temperatures can peak at a summery 34°C while the average remains pleasantly mild at 23°C. Despite the warmth, September is marked by frequent rain, with nearly two-thirds of the days seeing some precipitation, contributing to a high humidity level of 84%. This combination creates a dynamic atmosphere that's both invigorating and challenging for outdoor activities. If you want to explore more about how September fits into the broader climate patterns, check out Motegi Climate.