September Weather in Komaki, Japan

Last updated: August 23, 2025

In September, the average temperature in Komaki, Japan is a pleasant 25°C (77°F). However, temperatures can vary, dipping as low as 12°C (53°F) and soaring to a sizzling 38°C (101°F). Expect about 165 mm (6.5 in) of precipitation spread over 16 days, contributing to a high average humidity of 87%.

September Temperature in Komaki

In September in Komaki, the average temperature is 25°C (77°F). Maximums can reach 38°C (101°F), and minimums can be as low as 12°C (53°F). This makes it a great time to explore outdoor activities while being prepared for both warm days and cooler evenings.

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

The chart illustrates September temperature patterns in Komaki, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Komaki, September typically has an average temperature of 25°C (77°F), with highs reaching up to 38°C (101°F) and lows dropping to around 12°C (53°F).

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

September Precipitation in Komaki

In Komaki in September, the precipitation amount is 165 mm (6.5 in) over a period of 16 days.

September Precipitation Trends in Komaki

The chart displays monthly precipitation patterns in Komaki, 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 Komaki, September typically receives around 165 mm (6.5 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 Komaki

In Komaki 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 Komaki

This chart illustrates the average monthly humidity levels in Komaki, 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 Komaki 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 Komaki

In Komaki 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 Komaki.

Maximum UV Index Levels in Komaki for September

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

Data source: Komaki 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 Komaki Compares to Other Months

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

This table compares monthly weather conditions in Komaki, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	5°C (41°F)	43 mm (1.7 inches)	82%	moderate
February Weather	6°C (43°F)	52 mm (2.0 inches)	79%	high
March Weather	10°C (51°F)	126 mm (5.0 inches)	74%	very high
April Weather	15°C (59°F)	142 mm (5.6 inches)	76%	very high
May Weather	20°C (68°F)	173 mm (6.8 inches)	83%	extreme
June Weather	23°C (74°F)	148 mm (5.8 inches)	87%	extreme
July Weather	27°C (81°F)	295 mm (11.6 inches)	93%	extreme
August Weather	29°C (85°F)	169 mm (6.7 inches)	91%	extreme
September Weather	25°C (77°F)	165 mm (6.5 inches)	87%	very high
October Weather	19°C (66°F)	210 mm (8.2 inches)	85%	high
November Weather	13°C (55°F)	54 mm (2.1 inches)	83%	moderate
December Weather	7°C (45°F)	51 mm (2.0 inches)	83%	moderate