September Weather in Nishio, Japan

Last updated: August 23, 2025

In September, the average temperature in Nishio, Japan is a pleasant 25°C (77°F), making it an ideal time to explore. Expect a minimum temperature of 18°C (65°F) and a warm maximum reaching 31°C (89°F). However, be prepared for a fair amount of rain, with 183 mm (7.2 in) of precipitation spread over 16 days. The average humidity hovers at a high 87%, so stay hydrated and enjoy all the beauty this location has to offer!

September Temperature in Nishio

In September in Nishio, the average temperature is 25°C (77°F). Maximums can reach 31°C (89°F), and minimums can be as low as 18°C (65°F). This pleasant climate makes Nishio an ideal destination for travelers seeking warmth and comfort during their visit.

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

The chart illustrates September temperature patterns in Nishio, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Nishio, September typically has an average temperature of 25°C (77°F), with highs reaching up to 31°C (89°F) and lows dropping to around 18°C (65°F).

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

September Precipitation in Nishio

In Nishio in September, the precipitation amount is 183 mm (7.2 in) over a period of 16 days.

September Precipitation Trends in Nishio

The chart displays monthly precipitation patterns in Nishio, 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 Nishio, September typically receives around 183 mm (7.2 inches) of precipitation spread over approximately 16 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 Nishio

In Nishio in September, humidity is 87%. With an average temperature of 25°C (77°F), this humidity feels like a thick, warm blanket enveloping you, making travel a challenge as sweat clings to your skin and the air feels heavy and stifling.

September Average Humidity in Nishio

This chart illustrates the average monthly humidity levels in Nishio, 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 Nishio is approximately 87%, 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 Nishio

In Nishio 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 Nishio.

Maximum UV Index Levels in Nishio for September

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

Data source: Nishio 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 Nishio Compares to Other Months

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

This table compares monthly weather conditions in Nishio, 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 (46°F)	56 mm (2.2 inches)	82%	moderate
February Weather	8°C (46°F)	60 mm (2.4 inches)	79%	moderate
March Weather	11°C (52°F)	141 mm (5.5 inches)	74%	very high
April Weather	15°C (58°F)	136 mm (5.4 inches)	76%	very high
May Weather	19°C (66°F)	170 mm (6.7 inches)	83%	extreme
June Weather	22°C (72°F)	199 mm (7.8 inches)	87%	extreme
July Weather	26°C (79°F)	286 mm (11.3 inches)	93%	extreme
August Weather	28°C (83°F)	147 mm (5.8 inches)	91%	extreme
September Weather	25°C (77°F)	183 mm (7.2 inches)	87%	very high
October Weather	20°C (69°F)	290 mm (11.4 inches)	85%	high
November Weather	15°C (59°F)	67 mm (2.6 inches)	83%	moderate
December Weather	10°C (50°F)	68 mm (2.7 inches)	83%	moderate