September Weather in Yufu, Japan

Last updated: August 21, 2025

September in Yufu, Japan offers a warm transition into autumn, with maximum temperatures reaching a balmy 32°C (90°F) and an average of 24°C (76°F). While the days invite outdoor exploration, evenings cool down to a pleasant 15°C (59°F). However, visitors should be prepared for frequent rain; the city experiences 16 days of precipitation, totaling 218 mm (8.6 in). The high humidity levels, averaging 84%, contribute to a lush, verdant landscape, making Yufu a beautiful yet humid destination during this month.

September Temperature in Yufu

In September, Yufu, Japan, experiences a delightful transition as summer gives way to autumn. Temperatures during this month start to cool, with lows around 15°C (59°F), while warm days still peak at a comfortable 32°C (90°F). The average temperature settles at 24°C (76°F), providing an ideal climate for outdoor activities and exploring the stunning natural scenery. This month marks a significant drop in nighttime temperatures compared to the sweltering August, reflecting a broader seasonal trend that invites visitors to relish the crisp, refreshing air and the beautiful autumn foliage that begins to emerge. With mild weather prevailing, September is a perfect time to visit Yufu and embrace the changing seasons.

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

The chart illustrates September temperature patterns in Yufu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Yufu, 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).
JanFebMarAprMayJunJulAugSepOctNovDec434451586773808275665646
Data source: Temperature data for Yufu 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 Yufu

In September, Yufu, Japan, experiences a notable continuation of its wet season, with precipitation reaching 218 mm (8.6 in) over 16 days of rain. This marks a slight decrease from the heavy downpours of July and August, yet it remains significant, indicating that the region retains a robust moisture level as it transitions to autumn. The rainfall contributes to the lush landscapes that characterize the area, while the number of rainy days shows a consistent pattern from the preceding months, highlighting Yufu's reputation for summer showers and setting the stage for the drier months ahead. As the year progresses, the precipitation levels begin to taper off, preparing the environment for the cooler, more stable conditions of autumn.

September Precipitation Trends in Yufu

The chart displays monthly precipitation patterns in Yufu, 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 Yufu, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec52671161071431913252282181834753
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Yufu

In September, humidity in Yufu, Japan begins to taper off from the oppressive heights of summer. After a peak of 92% in July and 91% in August, September’s humidity settles at a more manageable 84%. This slight decrease marks the onset of autumn, transitioning from the muggy conditions of the sweltering months to a fresher atmosphere. Notably, the humidity remains relatively high compared to the winter months, which typically hover around 75% in January and decline to 71% in February and March. This trend illustrates Yufu's characteristic moist climate, where humidity tends to soar during the summer but gradually decreases as the seasons change, preparing the region for the crispness of fall.

September Average Humidity in Yufu

This chart illustrates the average monthly humidity levels in Yufu, 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 Yufu is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%71%71%78%84%86%92%91%84%83%81%79%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Yufu

September in Yufu, Japan, continues the trend of high sun intensity, with a UV Index of 11, categorized as extreme. This level indicates that residents and visitors alike should be especially vigilant about sun protection, as the burn time drops to just 10 minutes for unprotected skin. Following a summer of intense UV exposure, September’s conditions remain similar to the peak months of July and August. However, as autumn approaches, this index is expected to gradually decline in the coming months. It's essential to stay informed and take precautions during this time to enjoy the sun safely. For more detailed insights, visit the Yufu UV Index.

Maximum UV Index Levels in Yufu for September

The chart shows the monthly maximum UV Index (UVI) for Yufu 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 Yufu typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec469111211121211764
Data source: Yufu 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 Yufu

In Yufu, Japan, September bathes the region in a warm embrace of 254 hours of sunshine, continuing the vibrant trend established in the peak summer months. Following August's impressive 297 hours, the sunshine in September begins to taper off, hinting at the arrival of autumn. This slight decline in daylight hours signals a transition, yet it still reflects a significant amount of sun compared to the earlier months of the year. From January's modest 181 hours to May's lively 286 hours, the overall trajectory showcases a steady increase, peaking in the height of summer before gradually descending as the seasons shift. September, therefore, serves as a beautiful bridge, allowing residents and visitors to savor the lingering warmth while preparing for the cooler days ahead.

Monthly Sunshine Duration in Yufu: September Highlighted

The September sunshine duration represents the total number of hours Yufu 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.
JanFebMarAprMayJunJulAugSepOctNovDec181h231h264h280h286h258h266h297h254h249h235h221h
Data source: Yufu September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Yufu During September

In Yufu, Japan, September marks a transitional phase in weather patterns, showcasing a 31% chance of sunny days. This modest likelihood is a part of a broader trend where the summer months, particularly June and July, see a significant dip in sunshine, dropping to 20% and 17% respectively. As the year progresses toward autumn, a gradual recovery in sunny conditions becomes apparent, with October witnessing a notable increase to 55%. This shift indicates that, while September may not offer an abundance of sunshine, the promise of clearer skies is on the horizon as the region moves into the more favorable fall weather.

Percentage of Sunny Days in September in Yufu

The chart illustrates the percentage of sunny days in Yufu 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 Yufu experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec46%50%39%43%31%20%17%24%31%55%53%58%
Data source: Yufu September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Yufu in September

As autumn approaches in Yufu, Japan, September marks a transition in daylight duration, offering about 12 hours of light—a slight dip from the summer months. From the long, sun-drenched days of July and August, which boast 14 hours of daylight, September begins the gradual decline as it heads toward winter. This trend continues into October with 11 hours of daylight, reflecting the shift in seasons as nature prepares for the colder months. The pattern showcases a rhythmic cycle, where daylight ebbs and flows throughout the year, enhancing the charm of Yufu’s picturesque landscapes.

Average Daylight Hours in Yufu for September

The chart illustrates the variation in daylight duration in Yufu throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 12m10h 58m11h 58m13h13h 52m14h 18m14h 5m13h 19m12h 20m11h 19m10h 26m9h 58m
Data source: Yufu daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Yufu

In September, the winds in Yufu, Japan, whisper gently at an average speed of 1.9 m/s (4 mph), echoing the calm that marks the change of seasons. Following a gradual decline over the summer months, where August recorded the year’s lightest breezes, September’s winds show a slight uptick as they prepare to embrace the crisp air of autumn. This subtle resurgence hints at an upcoming shift, as the winds pick up momentum toward the cooler months ahead. Notably, as the year transitions, the winds will gradually increase in intensity, culminating in a robust 3.0 m/s (7 mph) by December, illustrating the dynamic nature of Yufu’s climate.

Average September Wind Speed in Yufu

The chart displays monthly wind speed patterns in Yufu, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.83.02.32.52.11.91.91.81.9 m/s2.02.43.0
Data source: Yufu September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Yufu Compares to Other Months

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

September and January present starkly contrasting weather conditions. In September, temperatures range from a mild 15°C (59°F) at night to a warm 32°C (90°F) during the day, with an average of 24°C (76°F). The month is characterized by high humidity at 84% and significant precipitation, totaling 218 mm (8.6 in) over 16 days. In contrast, January brings much cooler temperatures, with lows of -3°C (26°F) and highs reaching only up to 17°C (63°F), averaging around 6°C (43°F). The winter month features significantly less precipitation, with only 52 mm (2.0 in) over just 5 days, and lower humidity at 75%. For a more detailed look at January conditions, you can check Yufu weather in January.

September and February present stark contrasts in weather. In September, temperatures range from a mild 15°C (59°F) at night to a warm 32°C (90°F) during the day, with average conditions hovering around 24°C (76°F). The month is characterized by significant rainfall, totaling 218 mm (8.6 in) over 16 days, contributing to a high humidity level of 84%.

In contrast, February experiences much colder temperatures, with a minimum of -3°C (26°F) and a maximum of 20°C (68°F), averaging just 7°C (44°F). Precipitation is notably lower at 67 mm (2.6 in) over only 8 days, accompanied by reduced humidity at 71%. For a detailed look at February weather in Yufu, you can visit Yufu weather in February.

In comparing the weather of September and March, a clear contrast emerges. September boasts a warmer average temperature of 24°C (76°F) with highs reaching up to 32°C (90°F), while March experiences a much cooler average of 10°C (51°F), with maximum temperatures peaking at 24°C (76°F). Additionally, September is notably more humid at 84%, compared to the 71% humidity in March. Rainfall is also significantly higher in September, with 218 mm (8.6 in) spread across 16 days, whereas March sees only 116 mm (4.6 in) over 11 days. For a closer look at the specific conditions in March, you can check Yufu weather in March.

September and April present contrasting weather patterns, reflecting the transition from summer to autumn and from winter to spring, respectively. In September, temperatures range from a minimum of 15°C (59°F) to a maximum of 32°C (90°F), with an average of 24°C (76°F), indicating a warmer climate. The month is also relatively humid, with an 84% humidity level and significant rainfall, averaging 218 mm (8.6 in) over 16 days. In stark contrast, April sees cooler temperatures with a minimum of 3°C (38°F) and an average of 14°C (58°F), peaking at 25°C (78°F). The rainfall is lighter in April, totaling 107 mm (4.2 in) over just 8 days, and the humidity is slightly lower at 78%. For a more detailed look at the weather in April, check out Yufu weather in April.

In comparing the weather between September and May, September tends to be warmer, with average temperatures ranging from a minimum of 15°C (59°F) to a maximum of 32°C (90°F), while May's temperatures are cooler, averaging between 8°C (46°F) and 30°C (87°F). September also sees more rainfall, with 218 mm (8.6 in) of precipitation spread over 16 days, compared to May's 143 mm (5.6 in) over 11 days. Interestingly, both months share the same humidity level of 84%, creating a humid environment. For more detailed information about May weather, you can visit Yufu weather in May.

In comparing the weather between September and June, both months experience warm temperatures, with September showing a slightly higher average of 24°C (76°F) compared to June's 23°C (73°F). Both months reach similar maximum temperatures of 32°C (90°F in September and 89°F in June), while September has a marginally higher minimum temperature of 15°C (59°F) compared to June's 14°C (57°F). Rainfall is more prevalent in September, with 218 mm (8.6 in) over 16 days, while June sees 191 mm (7.5 in) across 15 days. Humidity levels are quite comparable, at 84% in September and 86% in June, contributing to a humid atmosphere for both months. For a more detailed look at June weather specifics, you can check Yufu weather in June.

When comparing the weather in September and July, notable differences arise in temperature and precipitation patterns. September tends to have cooler temperatures, with a minimum of 15°C (59°F) and an average of 24°C (76°F), while July is warmer, featuring a minimum of 19°C (67°F) and an average of 26°C (80°F). Precipitation is also more pronounced in July, with 325 mm (12.8 in) falling over 21 days, compared to September’s 218 mm (8.6 in) spread over 16 days. Additionally, humidity levels are slightly higher in July at 92%, compared to 84% in September. For a detailed look at July weather in Yufu, you can visit Yufu weather in July.

In comparing the weather of September and August, it’s clear that September experiences slightly cooler temperatures with a minimum of 15°C (59°F) and a maximum of 32°C (90°F), while August sees warmer conditions with a minimum of 20°C (69°F) and a maximum of 36°C (97°F). The average temperature in August is higher at 28°C (82°F) compared to September's 24°C (76°F). Precipitation levels are quite similar, with September receiving 218 mm (8.6 in) over 16 days and August slightly higher at 228 mm (9.0 in) over 15 days. Additionally, humidity is more pronounced in August at 91%, compared to September's 84%, making the latter month feel a bit more comfortable. For further details, you can explore Yufu weather in August.

In September, the weather is warm, with average temperatures reaching 24°C (76°F) and maximums peaking at 32°C (90°F), while the humidity remains high at 84%. The month experiences significant rainfall, totaling 218 mm (8.6 in) over 16 days. In contrast, October brings cooler temperatures, with averages dropping to 19°C (67°F) and minimums around 9°C (48°F), making the climate feel much more brisk. Although October still sees some precipitation, the total decreases to 183 mm (7.2 in) over just 10 days, and humidity remains quite similar at 83%. For more information on October weather specifics, you can visit Yufu weather in October.

In September, the weather is typically warm, with temperatures ranging from a minimum of 15°C (59°F) to a maximum of 32°C (90°F) and an average of 24°C (76°F). This month also sees considerable rainfall, with precipitation levels reaching 218 mm (8.6 in) over 16 days, accompanied by high humidity at 84%. In contrast, November experiences much cooler temperatures, with a minimum of 4°C (39°F) and a maximum of 25°C (76°F), averaging around 13°C (56°F). Rainfall is significantly reduced in November to just 47 mm (1.8 in) over 6 days, and humidity decreases slightly to 81%. For more details on the weather in November, you can visit Yufu weather in November.

In September, the weather is warm with temperatures ranging from a minimum of 15°C (59°F) to a maximum of 32°C (90°F), accompanied by high humidity at 84%. This month sees significant rainfall, with an average of 218 mm (8.6 in) over 16 days, making it a notably wet period. In contrast, December experiences much cooler temperatures, with a minimum of -1°C (31°F) and an average of 8°C (46°F), peaking at 22°C (72°F). Additionally, precipitation drops significantly to 53 mm (2.1 in) across just 6 days, and humidity levels decrease slightly to 79%. For a detailed look at December conditions, check out Yufu weather in December.

Compare Yufu's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Yufu

As September unfolds in Yufu, it ushers in a unique blend of warmth and moisture that distinguishes it from the preceding summer months. With an average temperature that still holds onto the summer's warmth, mornings and evenings bring a refreshing coolness, making it a perfect time for outdoor exploration. However, the high humidity and frequent rainfall—averaging 16 days of precipitation—transform the landscape into a lush oasis, painting a vivid picture of nature's bounty. This month serves as a transition into the more temperate fall season, where the charm of Yufu truly begins to emerge. For those keen to understand more about the climatic nuances of this enchanting destination, visit Yufu Climate.