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September Weather in Kurayoshi, Japan

Last updated: August 23, 2025

In September, the average temperature in Kurayoshi, Japan is a pleasant 23°C (74°F). You can expect a minimum of 18°C (65°F) and a peak of 32°C (89°F). However, be prepared for some wet days, as precipitation averages 230 mm (9.1 in) over about 17 days, with humidity lingering around 87%.

September Temperature in Kurayoshi

In September in Kurayoshi, the average temperature is 23°C (74°F), with maximums reaching up to 32°C (89°F) and minimums dropping as low as 18°C (65°F). This pleasant weather makes it an ideal destination for travelers seeking a comfortable climate.

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

The chart illustrates September temperature patterns in Kurayoshi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kurayoshi, September typically has an average temperature of 23°C (74°F), with highs reaching up to 32°C (89°F) and lows dropping to around 18°C (65°F).
JanFebMarAprMayJunJulAugSepOctNovDec434348546369778074655647
Data source: Temperature data for Kurayoshi 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 Kurayoshi

In Kurayoshi in September, the precipitation amount is 230 mm (9.1 in) over the course of 17 days.

September Precipitation Trends in Kurayoshi

The chart displays monthly precipitation patterns in Kurayoshi, 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 Kurayoshi, September typically receives around 230 mm (9.1 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec17915415113610619126323423020999222
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Kurayoshi

In Kurayoshi in September, humidity is 87%. With an average temperature of 23°C (74°F), this humidity feels like a warm, sticky embrace that can quickly wear you down while traveling, making even short walks feel exhausting and necessitating frequent breaks for hydration and cool air.

September Average Humidity in Kurayoshi

This chart illustrates the average monthly humidity levels in Kurayoshi, 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 Kurayoshi is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%79%73%74%84%86%92%92%87%85%84%82%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Kurayoshi

In Kurayoshi 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 Kurayoshi.

Maximum UV Index Levels in Kurayoshi for September

The chart shows the monthly maximum UV Index (UVI) for Kurayoshi 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 Kurayoshi typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec457101011121110753
Data source: Kurayoshi 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 Kurayoshi Compares to Other Months

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

This table compares monthly weather conditions in Kurayoshi, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (43°F)179 mm (7.1 inches)82%moderate
February Weather6°C (43°F)154 mm (6.1 inches)79%moderate
March Weather9°C (49°F)151 mm (5.9 inches)73%high
April Weather12°C (55°F)136 mm (5.3 inches)74%very high
May Weather17°C (63°F)106 mm (4.2 inches)84%very high
June Weather20°C (69°F)191 mm (7.5 inches)86%extreme
July Weather25°C (77°F)263 mm (10.4 inches)92%extreme
August Weather27°C (80°F)234 mm (9.2 inches)92%extreme
September Weather23°C (74°F)230 mm (9.1 inches)87%very high
October Weather18°C (65°F)209 mm (8.2 inches)85%high
November Weather13°C (57°F)99 mm (3.9 inches)84%moderate
December Weather8°C (47°F)222 mm (8.8 inches)82%moderate

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