September Weather in Utashinai, Japan

Last updated: August 23, 2025

In September, the average temperature in Utashinai, Japan hovers around 17°C (62°F). Expect a chill with minimums dropping to 3°C (38°F), while the mercury can climb as high as 29°C (85°F). Be prepared for some wet days, as 105 mm (4.1 in) of precipitation is likely over 13 days. With an average humidity of 88%, you'll definitely want to pack accordingly!

September Temperature in Utashinai

In September in Utashinai, the average temperature is 17°C (62°F). Maximum temperatures can reach 29°C (85°F), while minimums can drop as low as 3°C (38°F). Be sure to pack layers to stay comfortable during your travels.

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

The chart illustrates September temperature patterns in Utashinai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Utashinai, September typically has an average temperature of 17°C (62°F), with highs reaching up to 29°C (85°F) and lows dropping to around 3°C (38°F).

Data source: Temperature data for Utashinai generated using information from the Copernicus Climate Change Service.

September Precipitation in Utashinai

In Utashinai in September, the precipitation amount is 105 mm (4.1 in) over the course of 13 days.

September Precipitation Trends in Utashinai

The chart displays monthly precipitation patterns in Utashinai, 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 Utashinai, September typically receives around 105 mm (4.1 inches) of precipitation spread over approximately 13 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

September Humidity in Utashinai

In Utashinai in September, humidity is 88%. With an average temperature of 17°C (62°F), this humidity feels like traveling through a dense fog, making the air feel heavy and sticky, which can be quite uncomfortable for outdoor activities.

September Average Humidity in Utashinai

This chart illustrates the average monthly humidity levels in Utashinai, 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 Utashinai is approximately 88%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Utashinai

In Utashinai in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Utashinai.

Maximum UV Index Levels in Utashinai for September

The chart shows the monthly maximum UV Index (UVI) for Utashinai 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 Utashinai typically reaches 8, which falls under the very high exposure category.

Data source: Utashinai 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 Utashinai Compares to Other Months

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

This table compares monthly weather conditions in Utashinai, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-7°C (19°F)	58 mm (2.3 inches)	84%	low
February Weather	-6°C (22°F)	77 mm (3.0 inches)	83%	moderate
March Weather	0°C (32°F)	86 mm (3.4 inches)	81%	high
April Weather	6°C (43°F)	75 mm (2.9 inches)	81%	high
May Weather	12°C (54°F)	97 mm (3.8 inches)	86%	very high
June Weather	16°C (60°F)	99 mm (3.9 inches)	87%	very high
July Weather	20°C (69°F)	104 mm (4.1 inches)	93%	very high
August Weather	20°C (69°F)	184 mm (7.3 inches)	95%	very high
September Weather	17°C (62°F)	105 mm (4.1 inches)	88%	very high
October Weather	10°C (51°F)	142 mm (5.6 inches)	83%	moderate
November Weather	3°C (38°F)	139 mm (5.5 inches)	79%	moderate
December Weather	-4°C (25°F)	102 mm (4.0 inches)	80%	low