September Weather in Imaichi, Japan

Last updated: August 23, 2025

In September, the average temperature in Imaichi, Japan hovers around 20°C (68°F). Expect a minimum of 8°C (47°F) and a maximum of 31°C (88°F), making for quite a range! During this time, the region experiences precipitation totaling 269 mm (10.6 in) over 25 days, contributing to an average humidity of 89%. Prepare for a blend of warmth and moisture!

September Temperature in Imaichi

In September in Imaichi, the average temperature is 20°C (68°F). The maximum can reach 31°C (88°F) and the minimum can be as low as 8°C (47°F). This makes it a great time to enjoy outdoor activities while being prepared for varying weather conditions.

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

The chart illustrates September temperature patterns in Imaichi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Imaichi, September typically has an average temperature of 20°C (68°F), with highs reaching up to 31°C (88°F) and lows dropping to around 8°C (47°F).

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

September Precipitation in Imaichi

In Imaichi in September, the precipitation amount is 269 mm (10.6 in) over the course of 25 days.

September Precipitation Trends in Imaichi

The chart displays monthly precipitation patterns in Imaichi, 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 Imaichi, September typically receives around 269 mm (10.6 inches) of precipitation spread over approximately 25 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 Imaichi

In Imaichi in September, humidity is 89%. With an average temperature of 20°C (68°F), this humidity feels like walking through a warm, damp blanket that clings to your skin, making each step feel heavier and the air thick with moisture, which can be quite uncomfortable for traveling.

September Average Humidity in Imaichi

This chart illustrates the average monthly humidity levels in Imaichi, 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 Imaichi is approximately 89%, 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 Imaichi

In Imaichi 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 Imaichi.

Maximum UV Index Levels in Imaichi for September

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

Data source: Imaichi 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 Imaichi Compares to Other Months

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

This table compares monthly weather conditions in Imaichi, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	1°C (33°F)	52 mm (2.0 inches)	88%	moderate
February Weather	1°C (35°F)	51 mm (2.0 inches)	86%	high
March Weather	6°C (42°F)	154 mm (6.1 inches)	81%	very high
April Weather	10°C (50°F)	154 mm (6.1 inches)	78%	very high
May Weather	16°C (60°F)	197 mm (7.7 inches)	81%	very high
June Weather	19°C (66°F)	247 mm (9.7 inches)	88%	extreme
July Weather	23°C (73°F)	374 mm (14.7 inches)	92%	extreme
August Weather	24°C (76°F)	311 mm (12.2 inches)	92%	extreme
September Weather	20°C (68°F)	269 mm (10.6 inches)	89%	very high
October Weather	14°C (58°F)	292 mm (11.5 inches)	87%	high
November Weather	9°C (48°F)	70 mm (2.7 inches)	85%	moderate
December Weather	3°C (38°F)	67 mm (2.6 inches)	86%	moderate