nomadseason

September Weather in Shirone, Japan

Last updated: August 23, 2025

In Shirone, Japan, the average temperature in September hovers around 23°C (74°F). Expect a range from a minimum of 13°C (56°F) to a maximum of 38°C (100°F). During this time, you can anticipate 145 mm (5.7 in) of precipitation spread over 16 days, contributing to a notably high average humidity of 89%.

September Temperature in Shirone

In September in Shirone, the average temperature is 23°C (74°F). Maximum temperatures can reach 38°C (100°F), while the minimum can drop to as low as 13°C (56°F). This makes Shirone an ideal destination for travelers looking to enjoy warm weather with a comfortable range of temperatures.

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

The chart illustrates September temperature patterns in Shirone, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Shirone, September typically has an average temperature of 23°C (74°F), with highs reaching up to 38°C (100°F) and lows dropping to around 13°C (56°F).
JanFebMarAprMayJunJulAugSepOctNovDec383945536470798173635343
Data source: Temperature data for Shirone generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Shirone

In Shirone in September, the precipitation amount is 145 mm (5.7 in) spread over 16 days, indicating a moderately wet period for the region.

September Precipitation Trends in Shirone

The chart displays monthly precipitation patterns in Shirone, 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 Shirone, September typically receives around 145 mm (5.7 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec165132123113108102261213145155153210
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Shirone

In Shirone in September humidity is 89%. With an average temperature of 23°C (74°F), this humidity feels like a warm, heavy blanket enveloping you, making traveling feel stifling and exhausting as you navigate the thick air.

September Average Humidity in Shirone

This chart illustrates the average monthly humidity levels in Shirone, 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 Shirone is approximately 89%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%81%79%81%88%92%92%89%87%85%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Shirone

In Shirone 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 Shirone.

Maximum UV Index Levels in Shirone for September

The chart shows the monthly maximum UV Index (UVI) for Shirone 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 Shirone typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3479101011119643
Data source: Shirone 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 Shirone Compares to Other Months

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

This table compares monthly weather conditions in Shirone, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (38°F)165 mm (6.5 inches)88%moderate
February Weather4°C (39°F)132 mm (5.2 inches)86%moderate
March Weather7°C (46°F)123 mm (4.8 inches)81%high
April Weather12°C (53°F)113 mm (4.4 inches)78%very high
May Weather18°C (64°F)107 mm (4.2 inches)81%very high
June Weather21°C (70°F)102 mm (4.0 inches)88%very high
July Weather26°C (79°F)261 mm (10.3 inches)92%extreme
August Weather27°C (82°F)213 mm (8.4 inches)92%extreme
September Weather23°C (74°F)145 mm (5.7 inches)89%very high
October Weather17°C (64°F)155 mm (6.1 inches)87%high
November Weather11°C (53°F)153 mm (6.0 inches)85%moderate
December Weather6°C (43°F)210 mm (8.3 inches)86%moderate

Compare Shirone's Climate with Cities Worldwide