September Weather in Umeda, Japan

Last updated: August 21, 2025

September in Umeda, Japan, presents a vibrant tapestry of weather, with maximum temperatures soaring to 37°C (99°F), offering warm days that transition into cooler evenings with a minimum of 15°C (59°F). The average temperature hovers around a comfortable 25°C (78°F), perfect for exploring the city. However, this month is also characterized by its significant rainfall, with a total precipitation of 169 mm (6.7 in) spread across 15 days. Coupled with a high humidity level of 87%, the climate can feel quite tropical, making it a unique and dynamic experience for both residents and visitors alike.

September Temperature in Umeda

In September, Umeda, Japan experiences a delightful transition as summer gives way to autumn. With average temperatures settling around 25°C (78°F), the area enjoys mild warmth, though it can still reach highs of 37°C (99°F), reminiscent of the preceding summer months. The lower end of the scale starts at a comfortable 15°C (59°F), offering cooler evenings perfect for outdoor activities. Compared to the sweltering heat of August, where temperatures soared to 38°C (101°F), September presents a welcome reprieve while still maintaining a pleasant warmth for visitors and locals alike. As such, this month marks an ideal time to explore Umeda's vibrant streets and enjoy the onset of the autumn festival season.

September Weather in Umeda: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Umeda, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Umeda, September typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec424351596874828577675647
Data source: Temperature data for Umeda generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Umeda

In September, Umeda experiences a notable shift in precipitation, receiving 169 mm (6.7 in) of rainfall over 15 days. This marks a slight decrease from the heavy monsoon-like rains of July, which tallied a striking 282 mm (11.1 in), but remains above the monthly averages recorded earlier in the year. As summer transitions to autumn, September's weather offers a balance between lingering warmth and the onset of cooler temperatures, reflected in a steady pattern of rain that can be both refreshing and sporadically intense. The month effectively captures the essence of Japan’s dynamic climate, hinting at the wetter October ahead while still providing a respite from the summer swelter.

September Precipitation Trends in Umeda

The chart displays monthly precipitation patterns in Umeda, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Umeda, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec46601091351501472821831692304457
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Umeda

In September, Umeda, Japan, experiences a humidity level of 87%, a slight dip from the sweltering highs of the summer months. This figure continues the trend observed from June to August, where humidity peaked at an impressive 93% in July and remained high throughout August. As the region transitions into autumn, September's humidity remains notably elevated compared to earlier months like March and April, which saw levels around 74% and 76%, respectively. This late-summer humidity hints at both the lingering warmth of the season and a gradual shift towards the milder, yet still humid, weather typical of the fall months in Umeda.

September Average Humidity in Umeda

This chart illustrates the average monthly humidity levels in Umeda, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Umeda is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%79%74%76%83%87%93%91%87%85%83%83%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Umeda

In September, Umeda experiences a very high UV Index of 10, indicating that sun protection is essential, especially during prolonged exposure. This marks a slight decrease from the extreme levels seen during the peak summer months, yet it remains critical to stay vigilant. The recommended burn time increases to 15 minutes, offering a brief window for safe sun exposure. As the seasons transition from summer to autumn, the overall trend reveals a gradual decline in UV intensity, suggesting clearer measures for sun safety as we approach October. For more detailed information, visit Umeda UV Index.

Maximum UV Index Levels in Umeda for September

The chart shows the monthly maximum UV Index (UVI) for Umeda in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Umeda typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468111111121110753
Data source: Umeda September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

September Sunshine in Umeda

In Umeda, Japan, the delightful September sunshine brings a wholesome brightness to the city, offering an impressive 242 hours of sunlight. This marks a slight dip from the sun-soaked days of August, which boasted a remarkable 305 hours, but still reflects a significant amount of daylight as summer transitions into autumn. Observing the yearly trend, September typically enjoys more sunshine than the earlier months, showing an overall increase from 185 hours in January to a peak in August, before the gradual reduction into the cooler months. With its ample sunshine, September serves as a bridge between the vibrant summer and the crisp, colorful fall, inviting locals and visitors alike to bask in the warm glow while enjoying the city’s rich offerings.

Monthly Sunshine Duration in Umeda: September Highlighted

The September sunshine duration represents the total number of hours Umeda experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec185h229h265h279h291h268h258h305h242h237h236h221h
Data source: Umeda September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Umeda During September

In Umeda, Japan, the likelihood of sunny weather in September sees a modest 30% chance, making it somewhat of a transitional month. As summer wanes, the sun's presence begins to dwindle; this month registers one of the lower probabilities of sunshine, following the especially gloomy June and August. However, a slight increase occurs in October, where the chances rise to 53%, hinting at a return to brighter days. This trend underscores the variability of weather patterns in Umeda, where the shift from the humid summer gives way to the crispness of autumn, bringing a hopeful glimmer of sunshine as the seasons change.

Percentage of Sunny Days in September in Umeda

The chart illustrates the percentage of sunny days in Umeda throughout the year, with September highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Umeda experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec49%52%41%45%29%24%32%28%30%53%52%57%
Data source: Umeda September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Umeda in September

In September, Umeda, Japan, enjoys a delightful 12 hours of daylight, marking a gentle transition from the vibrant summer months. After basking in 14 hours of daylight during July and June, the days start to shorten, signaling the approach of autumn. This slight decrease in daylight captures the essence of change, as nature prepares for the cooler months ahead. Following the summer peak, September maintains a comfortable balance with its 12 hours, inviting residents to relish the warm hues of early autumn while reminiscing about the longer, sun-kissed days of summer. As the month concludes, daylight continues to wane, leading into October with 11 hours of sunlight, setting the stage for the cozy ambiance of the fall season.

Average Daylight Hours in Umeda for September

The chart illustrates the variation in daylight duration in Umeda throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 5m10h 54m11h 58m13h 3m13h 58m14h 25m14h 12m13h 24m12h 21m11h 16m10h 20m9h 51m
Data source: Umeda daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Umeda

In September, Umeda experiences a gentle breeze with an average wind speed of 2.2 m/s (5 mph), a modest decline from the summer months. This subtle shift marks a transition into autumn, where the winds become slightly calmer compared to the more dynamic gusts of earlier months, like July's 2.0 m/s and August's 2.4 m/s. The overall trend through the year shows that the wind speed is generally at its peak during the winter months, with January's brisk 2.9 m/s (7 mph). As September rolls in, the comforting whispers of the wind invite people to embrace the changing season, hinting at the cooler days ahead while still clinging to the warmth of summer.

Average September Wind Speed in Umeda

The chart displays monthly wind speed patterns in Umeda, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.93.12.72.72.71.82.02.42.2 m/s2.22.32.8
Data source: Umeda September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Umeda Compares to Other Months

Weather in Umeda varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Umeda, focusing on differences in temperature, rainfall, humidity, and UV levels.

September and January present stark contrasts in weather conditions. September welcomes warmer temperatures with a minimum of 15°C (59°F) and an average of 25°C (78°F), reaching a high of 37°C (99°F). This month is also characterized by significant rainfall, accumulating 169 mm (6.7 in) over approximately 15 days, and humidity levels are quite high at 87%. In contrast, January experiences much cooler temperatures, with lows dropping to -3°C (26°F) and an average of just 6°C (42°F), peaking at 18°C (64°F). Precipitation is considerably less during this month, totaling only 46 mm (1.8 in) across about 6 days, and humidity is slightly lower at 82%. For more detailed insights about January weather, you can visit Umeda weather in January.

September and February present striking contrasts in weather patterns. In September, temperatures can range from a mild 15°C (59°F) at night to a sweltering peak of 37°C (99°F) during the day, with an average of 25°C (78°F). The month is marked by significant rainfall, totaling 169 mm (6.7 in) over approximately 15 days, coupled with a high humidity level of 87%. In contrast, February experiences much cooler conditions, with temperatures fluctuating between a chilly -3°C (26°F) at night and a comfortable 20°C (68°F) during the day, averaging around 6°C (43°F). Precipitation is considerably less, at 60 mm (2.3 in), falling over just 6 days, and the humidity level is a lower 79%. For more insights into February weather, you can visit Umeda weather in February.

September and March present stark contrasts in weather. In September, temperatures range from a mild 15°C (59°F) at night to a sweltering maximum of 37°C (99°F) during the day, with high humidity levels averaging around 87%. The month experiences significant rainfall, with 169 mm (6.7 in) over 15 days. In contrast, March showcases much cooler temperatures, with a minimum of -1°C (31°F) and an average of only 10°C (51°F), peaking at 23°C (73°F). It receives less precipitation, totaling 109 mm (4.3 in) over 11 days, and lower humidity at 74%. For more detailed insights on March weather, please check Umeda weather in March.

September weather is characterized by warmer temperatures, with average highs reaching 25°C (78°F) and maximums soaring to 37°C (99°F). This month also experiences significant rainfall, averaging 169 mm (6.7 in) over approximately 15 days, contributing to a high humidity level of 87%. In contrast, April is much cooler, with average temperatures peaking at 15°C (59°F) and maxing out at 26°C (79°F). It also has lower precipitation, totaling 135 mm (5.3 in) over about 10 days, along with a humidity level of 76%. For a detailed look at weather patterns during this month, you can visit Umeda weather in April.

September and May present notably different weather conditions. In September, temperatures range from a minimum of 15°C (59°F) to a maximum of 37°C (99°F), with an average of 25°C (78°F). This month experiences higher humidity at 87% and significant precipitation, averaging 169 mm (6.7 in) over about 15 days. In contrast, May offers milder temperatures with a minimum of 8°C (47°F) and a maximum of 31°C (88°F), resulting in an average temperature of 20°C (69°F). Although May sees slightly less precipitation at 150 mm (5.9 in) across about 10 days, it has lower overall humidity at 83%. For a closer look at conditions in May, you can check out Umeda weather in May.

In comparing the weather between September and June, both months exhibit similar humidity levels, hovering around 87%. September tends to be warmer, with average temperatures reaching 25°C (78°F) and maximums soaring up to 37°C (99°F), while June has a slightly cooler average of 24°C (75°F) and maximums peaking at 32°C (89°F). Precipitation is also a factor, with September receiving 169 mm (6.7 in) over 15 days, compared to June's 147 mm (5.8 in) over 12 days, indicating that September is generally wetter. For more details on June weather specifics, you can visit Umeda weather in June.

In comparison to September, July typically experiences warmer average temperatures, with a minimum of 20°C (69°F) and an average of 28°C (82°F), while September has a lower minimum temperature of 15°C (59°F) and an average of 25°C (78°F). Both months can reach a maximum temperature of 37°C (99°F). However, July is notably wetter, receiving 282 mm (11.1 in) of precipitation over 18 days compared to September's 169 mm (6.7 in) over 15 days. Additionally, humidity levels are higher in July at 93% as opposed to 87% in September. For more detailed information, you can check Umeda weather in July.

In August, the weather is typically warmer, with average temperatures reaching 29°C (85°F) and maximums peaking at 38°C (101°F). The humidity is slightly higher at 91%, contributing to the overall mugginess of the month. Precipitation is also notable, totaling 183 mm (7.2 in) over 12 rainy days. In contrast, September sees cooler temperatures, with averages dropping to 25°C (78°F) and maximums at 37°C (99°F). Although it's still humid, at 87%, the month experiences more rainfall, accumulating 169 mm (6.7 in) over 15 days. Overall, September offers a slight reprieve from the heat of August while still maintaining a relatively wet climate. For more information, you can check Umeda weather in August.

September and October showcase a notable shift in weather patterns. In September, temperatures range from a minimum of 15°C (59°F) to an average of 25°C (78°F), peaking at 37°C (99°F). The month experiences significant rainfall, with 169 mm (6.7 in) spread over 15 days and relative humidity at 87%. In contrast, October brings cooler temperatures, with a minimum of 8°C (46°F) and an average of 20°C (67°F), while the maximum temperature reaches 33°C (91°F). Precipitation increases to 230 mm (9.0 in) over 12 days, accompanied by slightly lower humidity at 85%. For more detailed insights on October weather, you can visit Umeda weather in October.

September weather is characterized by warmer temperatures, with a minimum of 15°C (59°F) and an average of 25°C (78°F), peaking at a sweltering 37°C (99°F). This month also sees significant rainfall, totaling 169 mm (6.7 in) over 15 days, contributing to a high humidity level of 87%. In contrast, November brings a noticeable drop in temperature, with the minimum falling to 2°C (35°F) and an average of 13°C (56°F), reaching a maximum of 25°C (78°F). Precipitation decreases sharply to 44 mm (1.7 in) across just 6 days, and humidity also slightly decreases to 83%. For more details on November weather in Umeda, visit Umeda weather in November.

September weather features warm temperatures with a minimum of 15°C (59°F) and highs reaching up to 37°C (99°F), making it the warmest month of the three. The month is also quite humid, with an average humidity of 87% and substantial rainfall totaling 169 mm (6.7 in) across 15 days. In contrast, December brings a significant drop in temperature, with lows falling to -1°C (30°F) and a maximum of 22°C (71°F). The precipitation decreases markedly to 57 mm (2.2 in) over just 6 days, and humidity is slightly lower at 83%. For more detailed information on December weather, you can refer to Umeda weather in December.

Compare Umeda's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Umeda

September in Umeda marks a transition in weather patterns, as the sweltering summer heat gradually wanes, offering a mix of warm days and cooler nights. While the average temperature settles comfortably around 25°C, the humidity remains high at 87%, creating a muggy atmosphere that can feel more intense. With precipitation occurring on about half the days of the month, September is notably wetter than the preceding summer months, making it a time when unexpected rain showers are commonplace. As autumn approaches, this blend of warmth and moisture sets the stage for the beautiful fall foliage that Umeda is known for. Discover more about what to expect throughout the year by visiting Umeda Climate.