September Weather in Soja, Japan

Last updated: August 23, 2025

In September, the average temperature in Soja, Japan hovers around 24°C (75°F), offering a comfortable climate. However, be prepared for a range of temperatures, with minimums dipping to 11°C (53°F) and maximums soaring up to 35°C (95°F). During this time, expect 217 mm (8.5 in) of precipitation over 12 days, contributing to an average humidity of a steamy 87%.

September Temperature in Soja

In September in Soja, the average temperature is 24°C (75°F). Maximums can reach 35°C (95°F) and minimums can be as low as 11°C (53°F). This pleasant weather makes it an ideal time for travelers to explore and enjoy outdoor activities.

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

The chart illustrates September temperature patterns in Soja, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Soja, September typically has an average temperature of 24°C (75°F), with highs reaching up to 35°C (95°F) and lows dropping to around 11°C (53°F).

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

September Precipitation in Soja

In Soja in September, the total precipitation amount is 217 mm (8.5 in) spread over a period of 12 days.

September Precipitation Trends in Soja

The chart displays monthly precipitation patterns in Soja, 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 Soja, September typically receives around 217 mm (8.5 inches) of precipitation spread over approximately 12 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 Soja

In Soja in September, humidity is 87%. With an average temperature of 24°C (75°F), this humidity feels like a warm, sticky embrace that clings to your skin, making outdoor activities feel heavier and more exhausting, and the air thickens, leaving you longing for shade and refreshing breezes as you navigate your adventures.

September Average Humidity in Soja

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

In Soja 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 Soja.

Maximum UV Index Levels in Soja for September

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

Data source: Soja 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 Soja Compares to Other Months

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

This table compares monthly weather conditions in Soja, 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)	35 mm (1.4 inches)	82%	moderate
February Weather	5°C (42°F)	49 mm (1.9 inches)	79%	high
March Weather	10°C (49°F)	98 mm (3.9 inches)	73%	very high
April Weather	14°C (58°F)	128 mm (5.0 inches)	74%	very high
May Weather	19°C (67°F)	115 mm (4.5 inches)	84%	extreme
June Weather	23°C (73°F)	162 mm (6.4 inches)	86%	extreme
July Weather	27°C (80°F)	313 mm (12.3 inches)	92%	extreme
August Weather	28°C (83°F)	199 mm (7.8 inches)	92%	extreme
September Weather	24°C (75°F)	217 mm (8.5 inches)	87%	very high
October Weather	18°C (65°F)	174 mm (6.8 inches)	85%	high
November Weather	12°C (53°F)	32 mm (1.2 inches)	84%	moderate
December Weather	7°C (44°F)	47 mm (1.9 inches)	82%	moderate