September Weather in Kashima, Japan

Last updated: August 21, 2025

Kashima, Japan, in September experiences a dynamic climate, with temperatures ranging from a minimum of 19°C (66°F) to a maximum of 33°C (92°F), averaging around 25°C (77°F). This month is marked by high humidity levels at 84%, contributing to a muggy atmosphere. Rainfall is quite significant, with approximately 220 mm (8.7 in) spread over 14 days, making September a time of notable precipitation. Visitors should prepare for a blend of warmth and humidity, ideal for enjoying the lush landscapes that benefit from the seasonal rain.

September Temperature in Kashima

September in Kashima, Japan, marks a transition into the mild embrace of autumn, presenting a pleasant average temperature of 25°C (77°F). The month typically begins with minimum temperatures around 19°C (66°F), steadily rising to a maximum of 33°C (92°F), reminiscent of summer's lingering warmth. This pattern reflects a gradual cooling trend from the sweltering heights of July and August, where temperatures soared to their peak. As the month progresses, the humidity from summer starts to dissipate, creating a more comfortable atmosphere ripe for outdoor exploration. With this inviting climate, September is an ideal time to experience the beauty of Kashima, from its coastal landscapes to cultural festivities, as nature begins to showcase the vibrant hues of autumn.

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

The chart illustrates September temperature patterns in Kashima, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kashima, 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).
JanFebMarAprMayJunJulAugSepOctNovDec464653606874808377695949
Data source: Temperature data for Kashima 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 Kashima

In September, Kashima, Japan experiences a notable transition in its precipitation patterns, with 220 mm (8.7 in) of rainfall spread over 14 days. This reflects a slight decrease from the intense summer months of July and August, where rainfall peaked at 409 mm (16.1 in) and 321 mm (12.6 in), respectively. However, September still maintains a significant amount of rain, indicating the persistence of the monsoon season. As the city moves into the autumn months, this reduction in precipitation may signal a shift towards drier weather, with average rainfall dropping to 113 mm (4.4 in) in October. Overall, September serves as a bridge between the sweltering summer and the cooler, drier fall, showcasing Kashima's diverse climate landscape.

September Precipitation Trends in Kashima

The chart displays monthly precipitation patterns in Kashima, 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 Kashima, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec53891401272052304093212201136678
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Kashima

September in Kashima, Japan, sees a noticeable shift in humidity levels as summer transitions to autumn. With an average humidity of 84%, September marks a decline from the peak of 97% in July and 94% in August, ushering in a more comfortable atmosphere. This month reflects a gradual easing from the sultry summer months, although the humidity remains relatively high compared to the cooler autumn months ahead, such as October's 79% and November's 75%. Overall, September embodies a change, offering a blend of lingering warmth and a hint of the crispness to come, making it a unique time in Kashima's climatic tapestry.

September Average Humidity in Kashima

This chart illustrates the average monthly humidity levels in Kashima, 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 Kashima is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec73%69%71%79%87%92%97%94%84%79%75%72%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Kashima

As summer's heat begins to wane in September, Kashima, Japan, experiences a notable UV Index of 11, categorizing the exposure level as extreme. Despite the waning summer season, the potential for skin damage remains significant, with a burn time of just 10 minutes under direct sunlight. This trend reflects a continuation of the high UV levels seen throughout the preceding months, particularly in July and August, both of which also recorded an Index of 12. However, as the year progresses towards October, a gradual decline is anticipated, bringing the index down to 7 and shifting to a high exposure category. For more detailed information on UV levels throughout the year, check out the full Kashima UV Index.

Maximum UV Index Levels in Kashima for September

The chart shows the monthly maximum UV Index (UVI) for Kashima 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 Kashima typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468101111121211764
Data source: Kashima 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 Kashima

As summer transitions into autumn in Kashima, Japan, September continues to bask in generous sunshine, offering an impressive 254 hours of sunlight. This is a slight drop from the peak of 297 hours in August but remains significantly higher than the earlier months of the year. The gradual increase in daylight hours from January through May hints at the warmth ushered in by spring, culminating in the sun-drenched bliss of summer. Notably, September retains a substantial amount of sunshine, hinting at the lingering warmth before the cooler October days approach. The consistent trend of bright skies through the late summer and early autumn months emphasizes Kashima's idyllic weather, making it a captivating time for outdoor activities and explorations.

Monthly Sunshine Duration in Kashima: September Highlighted

The September sunshine duration represents the total number of hours Kashima 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.
JanFebMarAprMayJunJulAugSepOctNovDec166h226h260h279h281h262h268h297h254h253h231h199h
Data source: Kashima September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Kashima During September

In September, Kashima, Japan, sees a 36% chance of sunny weather, which marks a slight decline from the late summer months of July and August, where sunny days are relatively rare at 20% and 28%, respectively. As the autumn season approaches, the probability of clear skies begins to gradually increase, foreshadowing a more promising October with a remarkable 65% chance of sunshine. This trend suggests that while September may offer a mix of sun and clouds, it sets the stage for a brighter and more luminous fall season ahead, inviting visitors to enjoy both the lingering warmth and the beautiful transitions of nature.

Percentage of Sunny Days in September in Kashima

The chart illustrates the percentage of sunny days in Kashima 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 Kashima experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec38%45%36%41%31%25%20%28%36%65%51%43%
Data source: Kashima September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Kashima in September

In September, Kashima, Japan, enjoys a delightful 12 hours of daylight, marking a gentle transition from the long, sun-drenched days of summer. The month stands out as daylight begins to recede after its peak in June and July, when the city basks in 14 hours of sunlight. As the days shorten, September offers a comforting mix of warmth and coolness, beautifully bridging the vibrant summer months and the forthcoming autumn. While daylight reduces slightly compared to the previous month, it still allows for ample time to explore and admire the changing scenery, setting the stage for the golden hues of October.

Average Daylight Hours in Kashima for September

The chart illustrates the variation in daylight duration in Kashima throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 13m10h 59m11h 58m13h13h 51m14h 17m14h 4m13h 19m12h 21m11h 19m10h 26m9h 59m
Data source: Kashima daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Kashima

In September, the winds in Kashima, Japan reach a gentle average of 2.9 m/s (6 mph), marking a subtle decline as summer wanes. This month continues a downward trend in wind speeds that began in the warmer months, following the more vigorous gusts of January through August. While still breezy enough to feel refreshing, September’s calmer winds signal the transition into autumn, inviting a sense of tranquility to the coastal landscape. As the year progresses towards the cooler months of October and November, we can anticipate a slight uptick in wind speeds, reminiscent of the earlier part of the year, embracing a balanced rhythm that characterizes the shifting seasons.

Average September Wind Speed in Kashima

The chart displays monthly wind speed patterns in Kashima, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.93.93.43.33.12.22.93.32.9 m/s2.83.33.7
Data source: Kashima September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Kashima Compares to Other Months

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

September and January present a stark contrast in weather conditions. September typically boasts warmer temperatures, with a minimum of 19°C (66°F) and an average of 25°C (77°F), peaking at a scorching 33°C (92°F). However, it also brings significant precipitation, averaging 220 mm (8.7 in) over 14 days, coupled with high humidity at 84%. In contrast, January experiences much cooler temperatures, with a minimum of -1°C (31°F) and an average of 8°C (46°F), reaching a maximum of 17°C (63°F). The month is drier, recording only 53 mm (2.1 in) of rainfall over 6 days and a lower humidity of 73%. For a closer look at January weather specifics, you can visit Kashima weather in January.

In September, the weather is notably warmer, with temperatures ranging from a minimum of 19°C (66°F) to a maximum of 33°C (92°F) and an average of 25°C (77°F). The month is also characterized by high humidity levels at 84% and significant rainfall of 220 mm (8.7 in) over 14 days. In contrast, February experiences much cooler temperatures, with a minimum of -1°C (31°F) and a maximum of 17°C (63°F), averaging around 8°C (47°F). Precipitation is also lower at 89 mm (3.5 in), occurring over 9 days, and humidity drops to 69%. For more detailed weather insights about February, visit Kashima weather in February.

September weather is characterized by much warmer temperatures, with averages around 25°C (77°F) and maximums reaching up to 33°C (92°F), while March sees much cooler conditions, with average temperatures only hitting 12°C (53°F) and maximums of 21°C (70°F). Additionally, September is significantly wetter, with 220 mm (8.7 inches) of precipitation over 14 days compared to March's 140 mm (5.5 inches) over 10 days. Humidity levels are also higher in September at 84%, compared to 71% in March, making the early autumn month feel much more humid and tropical. For a more detailed look at conditions, you can check Kashima weather in March.

September weather tends to be warmer and more humid compared to April. With temperatures ranging from a minimum of 19°C (66°F) to a maximum of 33°C (92°F) and an average of 25°C (77°F), September experiences significant heat alongside high humidity at 84%. Additionally, there is considerable precipitation, measuring 220 mm (8.7 in) over 14 days. In contrast, April presents a much cooler climate, with temperatures fluctuating between 8°C (46°F) and 24°C (75°F), averaging at 15°C (60°F) and featuring lower humidity at 79%. Precipitation in April is also less intense, totaling 127 mm (5.0 in) over just 8 days. For more details about April weather, you can visit Kashima weather in April.

In September, the weather tends to be warmer with average temperatures reaching around 25°C (77°F) and maximums soaring up to 33°C (92°F). The month is also characterized by significant rainfall, averaging 220 mm (8.7 in) over about 14 days, and a humidity level of 84%. In contrast, May brings cooler temperatures with an average of 20°C (68°F) and maximums peaking at 26°C (78°F). Despite slightly lower rainfall at 204 mm (8.0 in) and fewer rainy days (11 days), the humidity is higher at 87%. For more specific details about the weather in May, you can check Kashima weather in May.

In comparing the weather of September and June, it is evident that both months have warm temperatures, but September tends to be slightly warmer overall. September experiences a minimum temperature of 19°C (66°F) and averages around 25°C (77°F), peaking at 33°C (92°F). In contrast, June has slightly cooler conditions with a minimum of 18°C (64°F) and an average of 23°C (74°F), reaching a maximum of 30°C (86°F). Both months receive considerable rainfall, with September having 220 mm (8.7 in) over 14 days and June receiving 230 mm (9.1 in) over 13 days. Additionally, the humidity is higher in June at 91%, compared to 84% in September, contributing to a more muggy feel during that month. For more detailed insights into June's weather patterns, you can visit Kashima weather in June.

In comparing the weather of September and July, we see distinct differences in temperature and precipitation patterns. September tends to have slightly lower temperatures, with averages around 25°C (77°F) compared to July's warmer average of 27°C (80°F). However, July experiences higher maximum temperatures of 34°C (93°F), while September peaks at 33°C (92°F). Precipitation also varies significantly, as July receives a substantial 409 mm (16.1 in) over 18 days, contrasted with September's 220 mm (8.7 in) spread across 14 days. Moreover, humidity levels in July are markedly higher at 97% compared to September's 84%. For a more detailed look at July weather, you can visit Kashima weather in July.

In comparing the weather of September and August, September offers slightly cooler temperatures, with an average of 25°C (77°F) compared to August's 28°C (83°F). While both months experienced precipitation on 14 days, September saw a reduced amount of rainfall at 220 mm (8.7 in) compared to August's 321 mm (12.6 in). Humidity levels are also lower in September, at 84%, compared to the higher 94% experienced in August. For more detailed information about the weather in August, you can check Kashima weather in August.

In September, the weather tends to be warmer and more humid, with average temperatures reaching around 25°C (77°F) and maximums peaking at 33°C (92°F). The month also witnesses significant rainfall, amounting to 220 mm (8.7 in) over 14 days, contributing to a high humidity level of 84%. In contrast, October brings a noticeable drop in temperatures, with a cooler average of 20°C (69°F) and maximums of 29°C (85°F). Rainfall is reduced to 113 mm (4.4 in) over just 7 days, and humidity decreases slightly to 79%. For a more detailed overview, you can check Kashima weather in October.

September typically brings warmer temperatures, with averages around 25°C (77°F) and highs reaching up to 33°C (92°F). The month is characterized by significant rainfall, accumulating about 220 mm (8.7 in) across 14 days, coupled with high humidity levels of 84%. In contrast, November experiences a notable drop in temperature, with an average of 15°C (59°F) and maximums not exceeding 22°C (72°F). Precipitation decreases significantly to 66 mm (2.6 in) over just 7 days, and the humidity is relatively lower at 75%. For more detailed information on November weather, you can visit Kashima weather in November.

September weather tends to be warm and humid, with average temperatures around 25°C (77°F) and highs reaching up to 33°C (92°F). The month sees significant rainfall, totaling 220 mm (8.7 in) over 14 days, and high humidity levels at 84%. In contrast, December brings a much cooler climate, with temperatures ranging from a chilly 1°C (35°F) at night to a mild 22°C (72°F) during the day, averaging around 10°C (50°F). Precipitation decreases sharply to 78 mm (3.1 in) over just 7 days, and the humidity drops to a more comfortable 72%. For more information on December's climate, you can explore Kashima weather in December.

Compare Kashima's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Kashima

As September rolls into Kashima, the weather begins to shift noticeably from the sweltering heat of summer. While the average temperature remains a comfortable 25°C (77°F), the month sees a peak of 33°C (92°F), marking the tail end of the summer’s warmth. However, this month can bring considerable rainfall, with 220 mm primarily spread over 14 days, adding a humid touch to the atmosphere, which hovers around 84%. This change creates a unique blend of warm temperatures and increased moisture, setting September apart from the drier and hotter months preceding it. If you're curious about the broader pattern of weather throughout the year, explore more at Kashima Climate.