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September Weather in Omigawa, Japan

Last updated: August 23, 2025

In September, the average temperature in Omigawa, Japan hovers around 24°C (75°F), providing a generally pleasant climate. However, temperatures can dip to a minimum of 15°C (60°F) and soar to a maximum of 34°C (93°F). Expect some rain, as 179 mm (7.0 in) of precipitation falls over 17 days of the month, accompanied by an average humidity level of 83%.

September Temperature in Omigawa

In September in Omigawa, the average temperature is 24°C (75°F). Maximum temperatures can reach 34°C (93°F), while minimums can drop to as low as 15°C (60°F). This pleasant climate makes it an ideal destination for travelers seeking enjoyable weather and diverse outdoor activities.

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

The chart illustrates September temperature patterns in Omigawa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Omigawa, September typically has an average temperature of 24°C (75°F), with highs reaching up to 34°C (93°F) and lows dropping to around 15°C (60°F).
JanFebMarAprMayJunJulAugSepOctNovDec434552586671788175675848
Data source: Temperature data for Omigawa 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 Omigawa

In Omigawa, in September, the precipitation amount is 179 mm (7.0 in) spread over 17 days.

September Precipitation Trends in Omigawa

The chart displays monthly precipitation patterns in Omigawa, 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 Omigawa, September typically receives around 179 mm (7.0 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec56521441131321692139517925510981
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Omigawa

In Omigawa in September, humidity is 83%. With an average temperature of 24°C (75°F), this humidity feels like a warm blanket enveloping you, which can be quite stifling for traveling. You may find yourself frequently seeking shade or air conditioning, and it's wise to stay hydrated while exploring.

September Average Humidity in Omigawa

This chart illustrates the average monthly humidity levels in Omigawa, 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 Omigawa is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec70%69%68%73%81%88%94%87%83%78%74%72%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Omigawa

In Omigawa 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 Omigawa.

Maximum UV Index Levels in Omigawa for September

The chart shows the monthly maximum UV Index (UVI) for Omigawa 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 Omigawa typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3589111111119754
Data source: Omigawa 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 Omigawa Compares to Other Months

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

This table compares monthly weather conditions in Omigawa, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (43°F)56 mm (2.2 inches)70%moderate
February Weather7°C (45°F)52 mm (2.0 inches)69%moderate
March Weather11°C (52°F)144 mm (5.7 inches)68%very high
April Weather14°C (58°F)112 mm (4.4 inches)73%very high
May Weather19°C (67°F)132 mm (5.2 inches)81%extreme
June Weather22°C (72°F)169 mm (6.7 inches)88%extreme
July Weather26°C (78°F)213 mm (8.4 inches)94%extreme
August Weather27°C (82°F)95 mm (3.8 inches)87%extreme
September Weather24°C (75°F)179 mm (7.0 inches)83%very high
October Weather19°C (67°F)255 mm (10.0 inches)78%high
November Weather14°C (58°F)109 mm (4.3 inches)74%moderate
December Weather9°C (48°F)81 mm (3.2 inches)72%moderate

Compare Omigawa's Climate with Cities Worldwide