September Weather in Asago, Japan

Last updated: August 23, 2025

In September, the average temperature in Asago, Japan hovers around 22°C (72°F), with a minimum of 10°C (50°F) and a maximum reaching 33°C (92°F). Expect a total precipitation of 279 mm (11.0 in) spread over 16 days, coupled with a stifling average humidity of 87%. Embrace the warmth and the occasional rainfall as you explore this vibrant destination!

September Temperature in Asago

In September in Asago, the average temperature is 22°C (72°F). The maximum can reach 33°C (92°F), while the minimum can drop to as low as 10°C (50°F). This makes for comfortable weather, perfect for exploring and enjoying outdoor activities.

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

The chart illustrates September temperature patterns in Asago, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Asago, September typically has an average temperature of 22°C (72°F), with highs reaching up to 33°C (92°F) and lows dropping to around 10°C (50°F).

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

September Precipitation in Asago

In Asago in September, the total precipitation amount is 279 mm (11.0 in), which falls over the course of 16 days.

September Precipitation Trends in Asago

The chart displays monthly precipitation patterns in Asago, 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 Asago, September typically receives around 279 mm (11.0 inches) of precipitation spread over approximately 16 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in Asago

In Asago in September humidity is 87%. With an average temperature of 22°C (72°F), this humidity feels like a warm blanket wrapping around you, making every step while traveling feel slightly heavier and more tedious, yet still refreshing in the shade.

September Average Humidity in Asago

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

In Asago 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 Asago.

Maximum UV Index Levels in Asago for September

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

Data source: Asago 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 Asago Compares to Other Months

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

This table compares monthly weather conditions in Asago, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	2°C (36°F)	68 mm (2.7 inches)	82%	moderate
February Weather	3°C (38°F)	72 mm (2.8 inches)	79%	high
March Weather	7°C (46°F)	134 mm (5.3 inches)	73%	very high
April Weather	12°C (54°F)	142 mm (5.6 inches)	74%	very high
May Weather	17°C (63°F)	148 mm (5.8 inches)	84%	extreme
June Weather	21°C (69°F)	219 mm (8.6 inches)	86%	extreme
July Weather	25°C (77°F)	376 mm (14.8 inches)	92%	extreme
August Weather	26°C (80°F)	310 mm (12.2 inches)	92%	extreme
September Weather	22°C (72°F)	279 mm (11.0 inches)	87%	very high
October Weather	16°C (62°F)	236 mm (9.3 inches)	85%	high
November Weather	10°C (50°F)	58 mm (2.3 inches)	84%	moderate
December Weather	5°C (41°F)	89 mm (3.5 inches)	82%	moderate