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September Weather in Onoda, Japan

Last updated: August 23, 2025

In September, the average temperature in Onoda, Japan hovers around 25°C (77°F), with a range that varies from a comfortable 18°C (64°F) to a warm 32°C (90°F). Expect 218 mm (8.6 in) of precipitation spread over 13 days, contributing to an average humidity of 84%. Prepare for a pleasantly warm and slightly humid atmosphere during your visit!

September Temperature in Onoda

In September in Onoda, the average temperature is 25°C (77°F). Maximum temperatures can reach 32°C (90°F), while minimums can drop to as low as 18°C (64°F). This mild climate makes Onoda an ideal destination for travelers seeking pleasant weather and enjoyable outdoor activities.

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

The chart illustrates September temperature patterns in Onoda, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Onoda, September typically has an average temperature of 25°C (77°F), with highs reaching up to 32°C (90°F) and lows dropping to around 18°C (64°F).
JanFebMarAprMayJunJulAugSepOctNovDec454551586672798276685849
Data source: Temperature data for Onoda 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 Onoda

In Onoda in September, the precipitation amount is 218 mm (8.6 in) over the course of 13 days.

September Precipitation Trends in Onoda

The chart displays monthly precipitation patterns in Onoda, 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 Onoda, September typically receives around 218 mm (8.6 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec63841411371632133082472181244669
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Onoda

In Onoda in September, humidity is 84%. With an average temperature of 25°C (77°F), this humidity feels like a warm, enveloping blanket that clings to your skin, making outdoor activities challenging and prompting travelers to seek shade and stay hydrated.

September Average Humidity in Onoda

This chart illustrates the average monthly humidity levels in Onoda, 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 Onoda is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%71%71%78%84%86%92%91%84%83%81%79%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Onoda

In Onoda 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 Onoda.

Maximum UV Index Levels in Onoda for September

The chart shows the monthly maximum UV Index (UVI) for Onoda 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 Onoda typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec458101111121210763
Data source: Onoda 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 Onoda Compares to Other Months

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

This table compares monthly weather conditions in Onoda, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (45°F)63 mm (2.5 inches)75%moderate
February Weather7°C (45°F)84 mm (3.3 inches)71%moderate
March Weather11°C (52°F)141 mm (5.6 inches)71%very high
April Weather14°C (58°F)137 mm (5.4 inches)78%very high
May Weather19°C (66°F)163 mm (6.4 inches)84%extreme
June Weather22°C (73°F)213 mm (8.4 inches)86%extreme
July Weather26°C (80°F)308 mm (12.1 inches)92%extreme
August Weather28°C (83°F)246 mm (9.7 inches)91%extreme
September Weather25°C (77°F)218 mm (8.6 inches)84%very high
October Weather20°C (68°F)124 mm (4.9 inches)83%high
November Weather14°C (58°F)46 mm (1.8 inches)81%high
December Weather9°C (49°F)69 mm (2.7 inches)79%moderate

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