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September Weather in Shimanto, Japan

Last updated: August 23, 2025

In Shimanto, Japan, the average temperature in September hovers around 25°C (77°F), with a minimum of 17°C (62°F) and a maximum reaching 32°C (91°F). During this period, expect 263 mm (10.4 in) of precipitation spread across 17 days, and enjoy the lush atmosphere with an average humidity of 85%.

September Temperature in Shimanto

In September in Shimanto, the average temperature is 25°C (77°F), with maximums reaching up to 32°C (91°F) and minimums dipping as low as 17°C (62°F). This mild and pleasant climate makes Shimanto an ideal destination for travelers seeking comfortable weather.

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

The chart illustrates September temperature patterns in Shimanto, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Shimanto, September typically has an average temperature of 25°C (77°F), with highs reaching up to 32°C (91°F) and lows dropping to around 17°C (62°F).
JanFebMarAprMayJunJulAugSepOctNovDec464755616873798277695950
Data source: Temperature data for Shimanto 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 Shimanto

In Shimanto in September, the precipitation amount is 263 mm (10.4 in) spread out over 17 days.

September Precipitation Trends in Shimanto

The chart displays monthly precipitation patterns in Shimanto, 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 Shimanto, September typically receives around 263 mm (10.4 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec59981531652092653972352632407777
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Shimanto

In Shimanto in September, humidity is 85%. With an average temperature of 25°C (77°F), this humidity feels like a warm, heavy blanket wrapping around you, making every outdoor excursion feel both stifling and sticky, requiring frequent breaks in the shade to stay comfortable while exploring.

September Average Humidity in Shimanto

This chart illustrates the average monthly humidity levels in Shimanto, 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 Shimanto is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec74%70%70%76%83%86%91%88%85%82%79%77%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Shimanto

In Shimanto in September, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Shimanto.

Maximum UV Index Levels in Shimanto for September

The chart shows the monthly maximum UV Index (UVI) for Shimanto 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 Shimanto typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec469101212121211864
Data source: Shimanto 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 Shimanto Compares to Other Months

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

This table compares monthly weather conditions in Shimanto, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (47°F)59 mm (2.3 inches)74%moderate
February Weather8°C (47°F)98 mm (3.9 inches)70%high
March Weather13°C (55°F)153 mm (6.0 inches)70%very high
April Weather16°C (61°F)165 mm (6.5 inches)76%very high
May Weather20°C (68°F)209 mm (8.2 inches)82%extreme
June Weather23°C (73°F)265 mm (10.4 inches)86%extreme
July Weather26°C (80°F)397 mm (15.6 inches)91%extreme
August Weather28°C (82°F)235 mm (9.3 inches)88%extreme
September Weather25°C (77°F)263 mm (10.4 inches)85%extreme
October Weather21°C (69°F)240 mm (9.5 inches)82%very high
November Weather15°C (59°F)77 mm (3.0 inches)79%high
December Weather10°C (50°F)77 mm (3.0 inches)77%moderate

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