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September Weather in Kaminoyama, Japan

Last updated: August 23, 2025

In September, the average temperature in Kaminoyama, Japan hovers around 19°C (67°F), making it a comfortable time of year. Expect a range from a chilly 7°C (44°F) to a warm 33°C (91°F). Be prepared for some rain, as 110 mm (4.3 in) of precipitation is likely over 14 days, with an average humidity of 86% adding to the atmosphere.

September Temperature in Kaminoyama

In September in Kaminoyama, the average temperature is 19°C (67°F). Maximum temperatures can reach 33°C (91°F), while the minimum can drop as low as 7°C (44°F). This diverse range of temperatures makes Kaminoyama an ideal destination for travelers seeking to enjoy both warm and cooler moments during their stay.

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

The chart illustrates September temperature patterns in Kaminoyama, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kaminoyama, September typically has an average temperature of 19°C (67°F), with highs reaching up to 33°C (91°F) and lows dropping to around 7°C (44°F).
JanFebMarAprMayJunJulAugSepOctNovDec293038475965737567564534
Data source: Temperature data for Kaminoyama 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 Kaminoyama

In Kaminoyama in September, the total precipitation amount is 110 mm (4.3 in) spread over 14 days.

September Precipitation Trends in Kaminoyama

The chart displays monthly precipitation patterns in Kaminoyama, 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 Kaminoyama, September typically receives around 110 mm (4.3 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec125116119116939823919411015180146
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Kaminoyama

In Kaminoyama in September humidity is 86%. With an average temperature of 19°C (67°F), this humidity feels like traveling through a thick, warm blanket, making the air feel heavy and sticky, which can be quite uncomfortable for outdoor activities.

September Average Humidity in Kaminoyama

This chart illustrates the average monthly humidity levels in Kaminoyama, 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 Kaminoyama is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%79%77%75%80%87%92%92%86%82%79%80%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Kaminoyama

In Kaminoyama in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Kaminoyama.

Maximum UV Index Levels in Kaminoyama for September

The chart shows the monthly maximum UV Index (UVI) for Kaminoyama 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 Kaminoyama typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101011119643
Data source: Kaminoyama 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.

How September Weather in Kaminoyama Compares to Other Months

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

This table compares monthly weather conditions in Kaminoyama, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)125 mm (4.9 inches)80%moderate
February Weather-1°C (31°F)116 mm (4.5 inches)79%moderate
March Weather4°C (39°F)119 mm (4.7 inches)77%high
April Weather8°C (47°F)116 mm (4.6 inches)75%very high
May Weather15°C (59°F)93 mm (3.7 inches)80%very high
June Weather19°C (66°F)98 mm (3.8 inches)87%very high
July Weather23°C (73°F)239 mm (9.4 inches)92%extreme
August Weather24°C (75°F)194 mm (7.6 inches)92%extreme
September Weather19°C (67°F)110 mm (4.3 inches)86%very high
October Weather13°C (56°F)151 mm (5.9 inches)82%high
November Weather7°C (45°F)80 mm (3.1 inches)79%moderate
December Weather1°C (34°F)146 mm (5.7 inches)80%moderate

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