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September Weather in Kobayashi, Japan

Last updated: August 23, 2025

In September, the average temperature in Kobayashi, Japan is a pleasant 23°C (75°F). During this time, temperatures can dip to a minimum of 11°C (52°F) and soar to a maximum of 33°C (91°F). Expect about 268 mm (10.5 in) of precipitation spread over 19 days, resulting in an average humidity of 80%. 🌦️

September Temperature in Kobayashi

In September in Kobayashi, the average temperature is 23°C (75°F). Maximums can reach 33°C (91°F), and minimums can drop to as low as 11°C (52°F). This pleasant climate makes it an ideal time for travelers to explore the sights and enjoy outdoor activities.

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

The chart illustrates September temperature patterns in Kobayashi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kobayashi, September typically has an average temperature of 23°C (75°F), with highs reaching up to 33°C (91°F) and lows dropping to around 11°C (52°F).
JanFebMarAprMayJunJulAugSepOctNovDec414351586671788074655443
Data source: Temperature data for Kobayashi 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 Kobayashi

In Kobayashi in September, the precipitation amount is 268 mm (10.5 in) over the course of 19 days.

September Precipitation Trends in Kobayashi

The chart displays monthly precipitation patterns in Kobayashi, 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 Kobayashi, September typically receives around 268 mm (10.5 inches) of precipitation spread over approximately 19 days.
JanFebMarAprMayJunJulAugSepOctNovDec551021741502363494092252681709078
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Kobayashi

In Kobayashi in September, humidity is 80%. With an average temperature of 23°C (75°F), this humidity feels like a warm, enveloping blanket, making outdoor activities a tad sticky but still manageable for those up for a leisurely exploration.

September Average Humidity in Kobayashi

This chart illustrates the average monthly humidity levels in Kobayashi, 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 Kobayashi is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec72%68%72%79%83%86%90%85%80%78%76%75%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Kobayashi

In Kobayashi in September, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Kobayashi.

Maximum UV Index Levels in Kobayashi for September

The chart shows the monthly maximum UV Index (UVI) for Kobayashi 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 Kobayashi typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec5610101212121211864
Data source: Kobayashi 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 Kobayashi Compares to Other Months

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

This table compares monthly weather conditions in Kobayashi, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)55 mm (2.2 inches)72%moderate
February Weather6°C (43°F)101 mm (4.0 inches)68%high
March Weather11°C (51°F)174 mm (6.9 inches)72%very high
April Weather15°C (59°F)150 mm (5.9 inches)79%very high
May Weather19°C (66°F)236 mm (9.3 inches)83%extreme
June Weather22°C (71°F)349 mm (13.7 inches)86%extreme
July Weather25°C (78°F)409 mm (16.1 inches)90%extreme
August Weather26°C (80°F)225 mm (8.9 inches)85%extreme
September Weather23°C (75°F)268 mm (10.5 inches)80%extreme
October Weather18°C (65°F)170 mm (6.7 inches)78%very high
November Weather12°C (54°F)90 mm (3.5 inches)76%high
December Weather6°C (44°F)78 mm (3.1 inches)74%moderate

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