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September Weather in Shintoku, Japan

Last updated: August 23, 2025

In September, the average temperature in Shintoku, Japan hovers around 15°C (59°F), with a minimum of 0°C (32°F) and a maximum reaching 29°C (84°F). This month brings about 129 mm (5.1 in) of precipitation over 14 days, contributing to a notably high average humidity of 89%. Stay prepared, as the weather can vary significantly!

September Temperature in Shintoku

In September in Shintoku, the average temperature is 15°C (59°F). Maximums can reach 29°C (84°F), while minimums can drop as low as 0°C (32°F). This creates a diverse climate that is suitable for both warm-weather activities and cooler excursions, making it an ideal time for travelers to explore.

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

The chart illustrates September temperature patterns in Shintoku, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Shintoku, September typically has an average temperature of 15°C (59°F), with highs reaching up to 29°C (84°F) and lows dropping to around 0°C (32°F).
JanFebMarAprMayJunJulAugSepOctNovDec151829395257666559483521
Data source: Temperature data for Shintoku 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 Shintoku

In Shintoku in September, the precipitation amount is 129 mm (5.1 in) over the course of 14 days.

September Precipitation Trends in Shintoku

The chart displays monthly precipitation patterns in Shintoku, 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 Shintoku, September typically receives around 129 mm (5.1 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec526296969511710417712915610570
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Shintoku

In Shintoku in September humidity is 89%. With an average temperature of 15°C (59°F), this humidity feels like a damp blanket enveloping you, making even short walks feel heavy and sluggish, while creating a sense of heaviness in the air that can dampen the joy of exploring.

September Average Humidity in Shintoku

This chart illustrates the average monthly humidity levels in Shintoku, 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 Shintoku is approximately 89%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%83%83%83%86%88%93%96%89%83%80%79%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Shintoku

In Shintoku in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Shintoku.

Maximum UV Index Levels in Shintoku for September

The chart shows the monthly maximum UV Index (UVI) for Shintoku 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 Shintoku typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec236891010108632
Data source: Shintoku 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 Shintoku Compares to Other Months

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

This table compares monthly weather conditions in Shintoku, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-9°C (16°F)52 mm (2.0 inches)84%low
February Weather-8°C (18°F)62 mm (2.5 inches)83%moderate
March Weather-2°C (29°F)96 mm (3.8 inches)83%high
April Weather4°C (40°F)96 mm (3.8 inches)83%very high
May Weather11°C (52°F)95 mm (3.7 inches)86%very high
June Weather14°C (58°F)117 mm (4.6 inches)88%very high
July Weather19°C (66°F)104 mm (4.1 inches)93%very high
August Weather18°C (65°F)177 mm (7.0 inches)96%very high
September Weather15°C (59°F)129 mm (5.1 inches)89%very high
October Weather9°C (48°F)156 mm (6.2 inches)83%high
November Weather2°C (35°F)105 mm (4.1 inches)80%moderate
December Weather-6°C (22°F)70 mm (2.8 inches)79%low

Compare Shintoku's Climate with Cities Worldwide