September Weather in Hakusan, Japan

Last updated: August 21, 2025

September in Hakusan, Japan is characterized by a warm climate, with maximum temperatures reaching 34°C (94°F) and an average of 23°C (74°F). The month experiences a diverse weather profile, including a notable minimum temperature of 15°C (60°F). This time of year also brings considerable rainfall, totaling 213 mm (8.4 in) spread across approximately 16 days, leading to a humidity level of 84%. The combination of warmth and moisture creates a lush environment, making September an intriguing month for visitors and nature enthusiasts alike.

September Temperature in Hakusan

In September, Hakusan, Japan experiences a delightful transition from the sweltering summer heat to the more temperate autumn climate. With minimum temperatures averaging 15°C (60°F) and peaking at a sizzling 34°C (94°F), the month offers a comfortable median temperature of around 23°C (74°F). This makes September an inviting time for outdoor activities, as the rising and setting sun creates a pleasant atmosphere for enjoying the vibrant fall foliage emerging in the region. As the month progresses, there’s a gradual cooling trend, hinting at the approaching autumn, making it an ideal period for those who appreciate milder temperatures before winter settles in.

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

The chart illustrates September temperature patterns in Hakusan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hakusan, 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).
JanFebMarAprMayJunJulAugSepOctNovDec404147546470788174655545
Data source: Temperature data for Hakusan 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 Hakusan

In September, Hakusan, Japan, experiences a noteworthy blend of rainfall, recording an average precipitation of 213 mm (8.4 inches) over 16 days. This marks a distinct drop from the intense rainfall seen in July (286 mm) and August (237 mm), yet it still signifies a significant contribution to the overall seasonal totals. As summer transitions into autumn, September's precipitation reflects a balance between the tail end of the rainy season and the onset of cooler temperatures. The consistent rainfall not only nourishes the lush Japanese landscape but also prepares the region for the drier months ahead, while maintaining a dynamic pattern of weather that is characteristic of Hakusan's climate.

September Precipitation Trends in Hakusan

The chart displays monthly precipitation patterns in Hakusan, 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 Hakusan, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec195162145161124147286237213191147240
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Hakusan

In September, Hakusan, Japan, experiences a notable shift with humidity dropping to 84%, providing a respite from the intense summer months. This decrease follows the peak levels observed in July and August, where humidity soared to 93% and 92%, respectively. As autumn approaches, the humidity levels continue to decline, aligning closely with the patterns seen in earlier spring months, such as April's 77% and March's 76%. This gradual transition not only enhances the comfort of outdoor activities but also marks the beginning of a more temperate atmosphere, making September a particularly pleasant month in Hakusan.

September Average Humidity in Hakusan

This chart illustrates the average monthly humidity levels in Hakusan, 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 Hakusan is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%78%76%77%85%89%93%92%84%81%77%79%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Hakusan

As summer fades into autumn, September in Hakusan, Japan, presents a UV Index of 9, categorizing it as very high and necessitating a mindful approach to sun exposure. With a burn time of just 15 minutes, this month marks a slight decrease from the extreme levels experienced during the peak summer months, yet it remains critical for residents and visitors alike to take precautions. The trend throughout the year shows a gradual rise in UV levels from January to June, peaking during the sweltering summer months of July and August at an 11. As the fall approaches, those planning outdoor activities should remain vigilant, as the UV Index remains elevated until October. For more detailed information on UV levels and safety tips, visit Hakusan UV Index.

Maximum UV Index Levels in Hakusan for September

The chart shows the monthly maximum UV Index (UVI) for Hakusan 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 Hakusan typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec45810101111119753
Data source: Hakusan 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 Hakusan

In September, Hakusan enjoys a delightful 253 hours of sunshine, marking a shift as summer winds down and autumn approaches. This month retains a generous amount of sunlight, though slightly less than the peak of August, which boasts an impressive 309 hours. As the year progresses from bright May and June into the embrace of July and August, the sun’s presence begins to gently decline, signaling the transition into the cooler months. Despite this gradual decrease, September's warmth is a perfect bridge, providing a vibrant backdrop for enjoying the beauty of Hakusan as the leaves begin their stunning transformation. With a consistent tapestry of sunshine throughout the late summer and early autumn, Hakusan remains a charming destination for those seeking both nature’s brilliance and serene landscapes.

Monthly Sunshine Duration in Hakusan: September Highlighted

The September sunshine duration represents the total number of hours Hakusan 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.
JanFebMarAprMayJunJulAugSepOctNovDec164h203h259h281h303h296h286h309h253h238h222h197h
Data source: Hakusan September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Hakusan During September

As September approaches in Hakusan, Japan, the likelihood of sunny weather hovers around 34%, offering a moderate chance for those seeking clear skies. This marks a slight uptick from the summer month's 26% in August, suggesting a gradual transition towards sunnier days as the region shifts into autumn. Interestingly, the prospect of sunny weather is higher in both April (48%) and October (48%), indicating that while September is not the sunniest month, it sits comfortably in the middle of the yearly spectrum. As the year progresses, September serves as a gentle reminder of the vibrant shifts in weather patterns, where different seasons beckon their own unique charm.

Percentage of Sunny Days in September in Hakusan

The chart illustrates the percentage of sunny days in Hakusan 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 Hakusan experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec28%35%36%49%31%32%41%26%34%48%47%30%
Data source: Hakusan September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Hakusan in September

September in Hakusan, Japan, marks a subtle transition as daylight begins to wane after the vibrant summer months. With 12 hours of daylight, September offers a gentle decrease from the 14 hours enjoyed in June, July, and August, indicating the gradual shift towards autumn. This month serves as a bridge, where lingering warmth embraces the crisp approach of fall, allowing residents and visitors to bask in the softening light before the days shorten further. As nature prepares for the changing seasons, September’s balanced daylight reminds us of the fleeting beauty that comes with the onset of autumn.

Average Daylight Hours in Hakusan for September

The chart illustrates the variation in daylight duration in Hakusan throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 57m10h 50m11h 57m13h 7m14h 6m14h 35m14h 21m13h 29m12h 23m11h 13m10h 13m9h 41m
Data source: Hakusan daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Hakusan

As the seasons shift in Hakusan, Japan, September brings a gentle breeze with an average wind speed of 3.1 m/s (7 mph), slightly quieter than the previous summer months. The winds of this month, while mellow, hint at the transition ahead, with a noticeable drop from the more consistent gusts experienced in the earlier months of the year. This decline mirrors the overall trend of summer's end, where wind speeds gradually increased from a winter average of 4.7 m/s in January to a peak in November at 4.3 m/s, only to gently taper off as autumn settles in. The refreshing September air serves as a reminder of nature's rhythmic cycle, blending comfort with the anticipation of cooler days to come.

Average September Wind Speed in Hakusan

The chart displays monthly wind speed patterns in Hakusan, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.75.14.34.44.22.62.63.23.1 m/s3.84.35.0
Data source: Hakusan September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Hakusan Compares to Other Months

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

September and January present stark contrasts in weather conditions. In September, temperatures range from a mild 15°C (60°F) at night to a hot 34°C (94°F) during the day, accompanied by significant precipitation of 213 mm (8.4 in) over roughly 16 days, and high humidity at 84%. In contrast, January sees much colder temperatures, with a minimum of -3°C (28°F) and a maximum of 15°C (60°F), along with slightly lower precipitation of 195 mm (7.7 in) over 22 days, and humidity at 80%. These differences highlight September's warmth and moisture compared to January's chill and frequent dampness. For more detailed insights on the weather in January, visit Hakusan weather in January.

September and February present starkly contrasting weather patterns. In September, temperatures range from a mild 15°C (60°F) at night to a scorching 34°C (94°F) during the day, with an average temperature of 23°C (74°F). However, this month is marked by significant precipitation, totaling 213 mm (8.4 in) over 16 days, coupled with high humidity at 84%. In contrast, February is much colder, with temperatures dipping as low as -2°C (28°F) and averaging only 5°C (41°F), peaking at 17°C (62°F). This month experiences less precipitation at 162 mm (6.4 in), but it rains on more days—20 in total—with a slightly lower humidity of 78%. For more detailed insights on weather conditions, you can check Hakusan weather in February.

September and March present vastly different weather conditions. In September, temperatures range from a mild 15°C (60°F) at night to a scorching 34°C (94°F) during the day, with an average of 23°C (74°F). The month also sees considerable precipitation, totaling 213 mm (8.4 in) over 16 days, contributing to a high humidity level of 84%. In contrast, March experiences much cooler temperatures, with a minimum of 1°C (34°F) and a maximum of 19°C (67°F), resulting in an average of just 8°C (47°F). Precipitation is lower at 145 mm (5.7 in) over the same number of rainy days, and humidity sits at a more comfortable 76%. For more detailed insights on March weather, you can visit Hakusan weather in March.

When comparing the weather in September and April, a clear contrast emerges. September tends to be much warmer, with average temperatures ranging from a minimum of 15°C (60°F) to a maximum of 34°C (94°F), while April experiences cooler conditions, with temperatures ranging from a minimum of 3°C (37°F) to a maximum of 23°C (74°F). Additionally, September is marked by higher humidity at 84%, compared to April's 77%. Precipitation is also more abundant in September, averaging 213 mm (8.4 in) over 16 days, whereas April sees less rain at 161 mm (6.3 in) across 13 days. For more detailed insights into April weather, you can check Hakusan weather in April.

September and May present contrasting weather conditions. In September, the temperatures range from a mild 15°C (60°F) to a hot 34°C (94°F), with a warm average of 23°C (74°F). This month sees considerable rainfall, with 213 mm (8.4 in) spread over 16 days, contributing to the high humidity of 84%. In contrast, May greets us with cooler temperatures, ranging from a minimum of 8°C (46°F) to a maximum of 27°C (80°F), and an average temperature of 18°C (64°F). The precipitation in May is considerably less, at 124 mm (4.9 in) over 12 days, and the humidity remains quite similar at 85%. For more detailed insights about the weather during this time, check out Hakusan weather in May.

When comparing the weather in September and June, September tends to be warmer with average temperatures reaching 23°C (74°F) and maximums soaring up to 34°C (94°F), compared to June's average of 21°C (70°F) and maximum of 29°C (85°F). However, September also brings significantly more precipitation, with 213 mm (8.4 in) over 16 rainy days, contrasted with June's 147 mm (5.8 in) across 12 days. Additionally, humidity levels are slightly higher in June at 89% versus 84% in September. For a more detailed look at June weather, you can visit Hakusan weather in June.

In comparing the weather of September and July, September tends to be slightly cooler with average temperatures ranging from a minimum of 15°C (60°F) to a maximum of 34°C (94°F), while July is warmer, boasting averages between 20°C (68°F) and 33°C (92°F). However, July also experiences higher humidity at 93%, compared to September's 84%. Precipitation is more pronounced in July, with 286 mm (11.3 in) over 18 days, contrasted by September's 213 mm (8.4 in) across 16 days. For more detailed insights into July's climate, you can visit Hakusan weather in July.

In August, temperatures were notably warmer, with a minimum of 19°C and an average of 27°C, peaking at 35°C. The month also experienced higher humidity at 92% and slightly more precipitation, totaling 237 mm over 16 days. In contrast, September saw a drop in minimum temperature to 15°C, an average of 23°C, and a maximum of 34°C, alongside a decrease in humidity to 84%. However, it still had a significant amount of rainfall, amounting to 213 mm over 16 days. For more detailed insights into August's weather patterns, please refer to Hakusan weather in August.

In comparing the weather between September and October, September generally experiences warmer temperatures, with minimums around 15°C (60°F) and maximums reaching 34°C (94°F). In contrast, October sees cooler temperatures, with a minimum of 10°C (51°F) and a maximum of 30°C (86°F). Both months have substantial rainfall, but September is slightly wetter, averaging 213 mm (8.4 in) over 16 days, while October receives around 191 mm (7.5 in) over 15 days. The humidity also decreases slightly from September's 84% to October's 81%, making the latter month feel a bit less oppressive. For more specific details, you can check Hakusan weather in October.

September's weather is characterized by warm temperatures, with a minimum of 15°C (60°F) and an average of 23°C (74°F), peaking at a hot 34°C (94°F). This month also sees significant rainfall, with 213 mm (8.4 in) over 16 days and a high humidity of 84%. In contrast, November experiences much cooler temperatures, with a minimum of 3°C (38°F), an average of 13°C (55°F), and a maximum of 24°C (75°F). Rainfall decreases to 147 mm (5.8 in) over 15 days, and humidity drops slightly to 77%. For a detailed overview of what to expect during the month, check out Hakusan weather in November.

September and December present strikingly contrasting weather conditions. In September, temperatures range from a mild 15°C (60°F) at night to a warm 34°C (94°F) during the day, with an average of 23°C (74°F). The month is characterized by high humidity at 84% and considerable rainfall, totaling 213 mm (8.4 in) over 16 days. In contrast, December sees much cooler temperatures, with a minimum of -3°C (26°F) and a maximum of 21°C (70°F), averaging just 7°C (46°F). This month also experiences more precipitation, accumulating 240 mm (9.5 in) over 24 days, but with a slightly lower humidity of 79%. For more details on December weather, you can find additional information at Hakusan weather in December.

Compare Hakusan's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Hakusan

As September unfolds in Hakusan, the weather shifts to a more temperate rhythm, offering a refreshing contrast to the sweltering summer heat. Average temperatures settle comfortably around 23°C (74°F), providing a welcome reprieve from the peaks of summer while still allowing for occasional warmth, with highs reaching up to 34°C (94°F). This month also marks the onset of increased precipitation, with rainfall gracing the region on 16 days, totaling 213 mm (8.4 in), significantly shaping the lush landscapes characteristic of Hakusan. Moreover, with humidity levels soaring to 84%, the air feels rich and vibrant, perfect for experiencing the natural beauty of the area. To learn more about the broader climate trends in Hakusan, be sure to explore Hakusan Climate.