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September Weather in Ichinohe, Japan

Last updated: August 23, 2025

In September, the average temperature in Ichinohe, Japan hovers around 19°C (66°F). Expect a minimum of 5°C (41°F) and a maximum of 32°C (90°F), offering a delightful range for all outdoor activities. However, be prepared for some rain, as 106 mm (4.2 in) of precipitation is expected across 12 days. With an average humidity of 89%, it’s the perfect time to enjoy the lush, vibrant surroundings!

September Temperature in Ichinohe

In September in Ichinohe, the average temperature is 19°C (66°F). Maximums can reach 32°C (90°F), and minimums can be as low as 5°C (41°F). This makes it a great time for travelers to enjoy mild weather while exploring the area.

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

The chart illustrates September temperature patterns in Ichinohe, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ichinohe, September typically has an average temperature of 19°C (66°F), with highs reaching up to 32°C (90°F) and lows dropping to around 5°C (41°F).
JanFebMarAprMayJunJulAugSepOctNovDec272838475864727366554332
Data source: Temperature data for Ichinohe 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 Ichinohe

In Ichinohe in September, the precipitation amount is 106 mm (4.2 in), occurring over a span of 12 days.

September Precipitation Trends in Ichinohe

The chart displays monthly precipitation patterns in Ichinohe, 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 Ichinohe, September typically receives around 106 mm (4.2 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec557792111951101381421071506077
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Ichinohe

In Ichinohe in September humidity is 89%. With an average temperature of 19°C (66°F), this humidity feels like walking through a damp blanket, making every step more laborious and the air thick, potentially leading to discomfort while exploring or sightseeing.

September Average Humidity in Ichinohe

This chart illustrates the average monthly humidity levels in Ichinohe, 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 Ichinohe is approximately 89%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec79%78%77%78%86%91%95%97%89%82%78%77%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Ichinohe

In Ichinohe 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 Ichinohe.

Maximum UV Index Levels in Ichinohe for September

The chart shows the monthly maximum UV Index (UVI) for Ichinohe 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 Ichinohe typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec346891010119642
Data source: Ichinohe 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 Ichinohe Compares to Other Months

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

This table compares monthly weather conditions in Ichinohe, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (27°F)55 mm (2.2 inches)79%moderate
February Weather-2°C (29°F)77 mm (3.0 inches)78%moderate
March Weather3°C (38°F)92 mm (3.6 inches)77%high
April Weather8°C (47°F)111 mm (4.4 inches)78%very high
May Weather15°C (58°F)95 mm (3.7 inches)86%very high
June Weather18°C (64°F)110 mm (4.3 inches)91%very high
July Weather22°C (72°F)138 mm (5.4 inches)95%very high
August Weather23°C (73°F)142 mm (5.6 inches)97%extreme
September Weather19°C (66°F)106 mm (4.2 inches)89%very high
October Weather13°C (55°F)149 mm (5.9 inches)81%high
November Weather6°C (44°F)60 mm (2.4 inches)78%moderate
December Weather0°C (32°F)77 mm (3.0 inches)77%low

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