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September Weather in Ohira, Japan

Last updated: August 23, 2025

In September, the average temperature in Ohira, Japan is a pleasant 20°C (69°F). Expect a bit of variance, with minimum temperatures dipping to 7°C (44°F) and maximums soaring to 34°C (94°F). Be prepared for some rain, as 133 mm (5.2 in) of precipitation is likely over the course of 14 days. With an average humidity level of 86%, the air can feel quite moist, adding to the region's unique charm.

September Temperature in Ohira

In September in Ohira, the average temperature is 20°C (69°F). Maximums can reach 34°C (94°F), while minimums can drop as low as 7°C (44°F). This climate makes Ohira a great destination for travelers seeking a pleasant mix of warm days and cooler evenings.

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

The chart illustrates September temperature patterns in Ohira, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ohira, September typically has an average temperature of 20°C (69°F), with highs reaching up to 34°C (94°F) and lows dropping to around 7°C (44°F).
JanFebMarAprMayJunJulAugSepOctNovDec313341496066747668584636
Data source: Temperature data for Ohira 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 Ohira

In Ohira in September, the precipitation amount is 133 mm (5.2 in) occurring over the course of 14 days.

September Precipitation Trends in Ohira

The chart displays monthly precipitation patterns in Ohira, 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 Ohira, September typically receives around 133 mm (5.2 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec74641101111051102252161331854780
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Ohira

In Ohira in September, humidity is 86%. With an average temperature of 20°C (69°F), this humidity feels like a warm, dense blanket wrapping around you, making travel feel sluggish and sticky, as each step can leave you yearning for a cool breeze or a refreshing drink.

September Average Humidity in Ohira

This chart illustrates the average monthly humidity levels in Ohira, 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 Ohira is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%79%77%75%80%87%92%92%86%82%79%80%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Ohira

In Ohira 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 Ohira.

Maximum UV Index Levels in Ohira for September

The chart shows the monthly maximum UV Index (UVI) for Ohira 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 Ohira typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3478101011119643
Data source: Ohira 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 Ohira Compares to Other Months

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

This table compares monthly weather conditions in Ohira, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (31°F)74 mm (2.9 inches)80%moderate
February Weather1°C (33°F)64 mm (2.5 inches)79%moderate
March Weather5°C (41°F)110 mm (4.3 inches)77%high
April Weather10°C (50°F)111 mm (4.4 inches)75%very high
May Weather16°C (60°F)105 mm (4.1 inches)80%very high
June Weather19°C (67°F)110 mm (4.3 inches)87%very high
July Weather23°C (74°F)225 mm (8.9 inches)92%extreme
August Weather24°C (76°F)216 mm (8.5 inches)92%extreme
September Weather20°C (69°F)133 mm (5.2 inches)86%very high
October Weather14°C (58°F)185 mm (7.3 inches)82%high
November Weather8°C (47°F)47 mm (1.9 inches)79%moderate
December Weather2°C (36°F)80 mm (3.1 inches)80%moderate

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