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September Weather in Shiranuka, Japan

Last updated: August 23, 2025

In September, the average temperature in Shiranuka, Japan is a mild 16°C (62°F), with temperatures ranging from a minimum of 7°C (46°F) to a pleasant maximum of 26°C (79°F). Expect about 124 mm (4.9 in) of precipitation over 11 days, contributing to an average humidity level of 89%.

September Temperature in Shiranuka

In September in Shiranuka, the average temperature is 16°C (62°F). The maximum can reach 26°C (79°F), while the minimum can be as low as 7°C (46°F). This pleasant climate makes Shiranuka an ideal destination for travelers looking to enjoy mild weather and outdoor activities.

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

The chart illustrates September temperature patterns in Shiranuka, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Shiranuka, September typically has an average temperature of 16°C (62°F), with highs reaching up to 26°C (79°F) and lows dropping to around 7°C (46°F).
JanFebMarAprMayJunJulAugSepOctNovDec232332404954616461534229
Data source: Temperature data for Shiranuka 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 Shiranuka

In Shiranuka in September, the precipitation amount is 124 mm (4.9 in) over the course of 11 days.

September Precipitation Trends in Shiranuka

The chart displays monthly precipitation patterns in Shiranuka, 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 Shiranuka, September typically receives around 124 mm (4.9 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec464299851041121091661241968454
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Shiranuka

In Shiranuka in September, humidity is 89%. With an average temperature of 16°C (62°F), this humidity feels like a damp blanket enveloping you, making every step slightly sticky and the air thick, which can be uncomfortable for traveling.

September Average Humidity in Shiranuka

This chart illustrates the average monthly humidity levels in Shiranuka, 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 Shiranuka 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 Shiranuka

In Shiranuka 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 Shiranuka.

Maximum UV Index Levels in Shiranuka for September

The chart shows the monthly maximum UV Index (UVI) for Shiranuka 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 Shiranuka typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec23588101098532
Data source: Shiranuka 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 Shiranuka Compares to Other Months

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

This table compares monthly weather conditions in Shiranuka, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (23°F)46 mm (1.8 inches)84%low
February Weather-5°C (23°F)42 mm (1.6 inches)83%moderate
March Weather0°C (32°F)99 mm (3.9 inches)83%moderate
April Weather4°C (40°F)84 mm (3.3 inches)83%very high
May Weather9°C (49°F)104 mm (4.1 inches)86%very high
June Weather12°C (54°F)112 mm (4.4 inches)88%very high
July Weather16°C (62°F)109 mm (4.3 inches)93%very high
August Weather18°C (65°F)166 mm (6.5 inches)96%very high
September Weather16°C (62°F)124 mm (4.9 inches)89%very high
October Weather11°C (53°F)196 mm (7.7 inches)83%moderate
November Weather5°C (42°F)84 mm (3.3 inches)80%moderate
December Weather-1°C (30°F)54 mm (2.1 inches)79%low

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