September Weather in Owase, Japan

Last updated: August 23, 2025

In September, the average temperature in Owase, Japan hovers around 24°C (76°F), with a minimum of 19°C (66°F) and a maximum reaching 30°C (85°F). Expect significant rainfall, averaging 358 mm (14.1 in) over 20 days, coupled with a high average humidity of 82%. Perfect for those who enjoy a warm and somewhat tropical climate!

September Temperature in Owase

In September in Owase, the average temperature is 24°C (76°F). Maximum can reach 30°C (85°F), and minimum can be as low as 19°C (66°F). This mild climate makes it an ideal destination for travelers seeking pleasant weather and outdoor activities.

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

The chart illustrates September temperature patterns in Owase, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Owase, September typically has an average temperature of 24°C (76°F), with highs reaching up to 30°C (85°F) and lows dropping to around 19°C (66°F).

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

September Precipitation in Owase

In Owase in September, the precipitation amount is 358 mm (14.1 in) over the course of 20 days.

September Precipitation Trends in Owase

The chart displays monthly precipitation patterns in Owase, 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 Owase, September typically receives around 358 mm (14.1 inches) of precipitation spread over approximately 20 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 Owase

In Owase in September, humidity is 82%. With an average temperature of 24°C (76°F), this humidity feels like wearing a warm, damp blanket, making travel uncomfortable and sticky as you explore.

September Average Humidity in Owase

This chart illustrates the average monthly humidity levels in Owase, 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 Owase is approximately 82%, 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 Owase

In Owase 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 Owase.

Maximum UV Index Levels in Owase for September

The chart shows the monthly maximum UV Index (UVI) for Owase 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 Owase typically reaches 10, which falls under the very high exposure category.

Data source: Owase 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 Owase Compares to Other Months

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

This table compares monthly weather conditions in Owase, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	8°C (46°F)	85 mm (3.4 inches)	72%	moderate
February Weather	8°C (47°F)	81 mm (3.2 inches)	69%	high
March Weather	12°C (53°F)	205 mm (8.1 inches)	69%	very high
April Weather	15°C (59°F)	173 mm (6.8 inches)	75%	extreme
May Weather	19°C (66°F)	225 mm (8.8 inches)	82%	extreme
June Weather	21°C (71°F)	290 mm (11.4 inches)	87%	extreme
July Weather	25°C (77°F)	322 mm (12.7 inches)	92%	extreme
August Weather	27°C (80°F)	228 mm (9.0 inches)	86%	extreme
September Weather	24°C (76°F)	358 mm (14.1 inches)	82%	very high
October Weather	20°C (68°F)	548 mm (21.6 inches)	79%	high
November Weather	15°C (60°F)	90 mm (3.5 inches)	75%	high
December Weather	10°C (51°F)	92 mm (3.6 inches)	74%	moderate