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September Weather in Shimada, Japan

Last updated: August 23, 2025

In September, the average temperature in Shimada, Japan is a pleasant 25°C (77°F). Temperatures can vary, with a minimum of 20°C (68°F) and a maximum reaching 31°C (88°F). Expect significant rainfall, with 255 mm (10.0 in) over approximately 20 days, and a high average humidity of 86%.

September Temperature in Shimada

In September in Shimada, the average temperature is a pleasant 25°C (77°F). Maximum temperatures can soar to 31°C (88°F), while the minimum can dip to around 20°C (68°F). This mild climate makes Shimada an ideal destination for outdoor activities and exploration during this time of year.

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

The chart illustrates September temperature patterns in Shimada, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Shimada, September typically has an average temperature of 25°C (77°F), with highs reaching up to 31°C (88°F) and lows dropping to around 20°C (68°F).
JanFebMarAprMayJunJulAugSepOctNovDec464753596671788177696151
Data source: Temperature data for Shimada 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 Shimada

In Shimada in September, the precipitation amount is 255 mm (10.0 in) spread over a duration of 20 days.

September Precipitation Trends in Shimada

The chart displays monthly precipitation patterns in Shimada, 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 Shimada, September typically receives around 255 mm (10.0 inches) of precipitation spread over approximately 20 days.
JanFebMarAprMayJunJulAugSepOctNovDec658819618622429642020525531410882
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Shimada

In Shimada in September, humidity is 86%. With an average temperature of 25°C (77°F), this humidity feels like you are wrapped in a warm, heavy blanket, making travel a bit challenging as you may find yourself frequently seeking shade and hydration while navigating the vibrant streets.

September Average Humidity in Shimada

This chart illustrates the average monthly humidity levels in Shimada, 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 Shimada is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%74%70%74%82%88%93%90%86%83%80%78%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Shimada

In Shimada in September, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Shimada.

Maximum UV Index Levels in Shimada for September

The chart shows the monthly maximum UV Index (UVI) for Shimada 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 Shimada typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec458101111121110754
Data source: Shimada 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 Shimada Compares to Other Months

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

This table compares monthly weather conditions in Shimada, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (47°F)65 mm (2.5 inches)76%moderate
February Weather8°C (47°F)88 mm (3.5 inches)74%moderate
March Weather12°C (53°F)196 mm (7.7 inches)70%very high
April Weather15°C (59°F)186 mm (7.3 inches)74%very high
May Weather19°C (66°F)223 mm (8.8 inches)81%extreme
June Weather22°C (72°F)295 mm (11.6 inches)88%extreme
July Weather25°C (78°F)420 mm (16.5 inches)93%extreme
August Weather27°C (82°F)205 mm (8.1 inches)90%extreme
September Weather25°C (77°F)255 mm (10.0 inches)86%very high
October Weather21°C (69°F)314 mm (12.4 inches)83%high
November Weather16°C (61°F)108 mm (4.3 inches)80%moderate
December Weather11°C (52°F)82 mm (3.2 inches)78%moderate

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