September Weather in Shimotsuke, Japan

Last updated: August 23, 2025

In Shimotsuke, Japan, the average temperature in September hovers around 22°C (72°F). Expect a minimum of 12°C (53°F) and a maximum reaching 34°C (93°F). Be prepared for 225 mm (8.8 in) of rainfall spread over 22 days, contributing to an average humidity of 89%.

September Temperature in Shimotsuke

In September, in Shimotsuke, the average temperature is 22°C (72°F). Maximums can reach 34°C (93°F) and minimums can drop as low as 12°C (53°F). This temperature range makes Shimotsuke a pleasant destination for travelers looking to enjoy mild weather and outdoor activities.

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

The chart illustrates September temperature patterns in Shimotsuke, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Shimotsuke, September typically has an average temperature of 22°C (72°F), with highs reaching up to 34°C (93°F) and lows dropping to around 12°C (53°F).

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

September Precipitation in Shimotsuke

In Shimotsuke in September, the total precipitation amount reaches 225 mm (8.8 in) over the course of 22 days.

September Precipitation Trends in Shimotsuke

The chart displays monthly precipitation patterns in Shimotsuke, 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 Shimotsuke, September typically receives around 225 mm (8.8 inches) of precipitation spread over approximately 22 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 Shimotsuke

In Shimotsuke in September humidity is 89%. With an average temperature of 22°C (72°F), this humidity feels like a warm, enveloping blanket that clings to your skin, making every step feel heavier and the air thick with moisture. It's a reminder to stay hydrated and take frequent breaks to enjoy the lush surroundings while navigating the often steamy atmosphere.

September Average Humidity in Shimotsuke

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

In Shimotsuke in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Shimotsuke.

Maximum UV Index Levels in Shimotsuke for September

The chart shows the monthly maximum UV Index (UVI) for Shimotsuke 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 Shimotsuke typically reaches 9, which falls under the very high exposure category.

Data source: Shimotsuke 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 Shimotsuke Compares to Other Months

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

This table compares monthly weather conditions in Shimotsuke, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	3°C (38°F)	38 mm (1.5 inches)	88%	moderate
February Weather	4°C (40°F)	43 mm (1.7 inches)	86%	moderate
March Weather	8°C (47°F)	141 mm (5.5 inches)	81%	high
April Weather	13°C (55°F)	144 mm (5.7 inches)	78%	very high
May Weather	18°C (65°F)	160 mm (6.3 inches)	81%	very high
June Weather	21°C (70°F)	194 mm (7.6 inches)	88%	extreme
July Weather	25°C (77°F)	296 mm (11.6 inches)	92%	extreme
August Weather	26°C (80°F)	218 mm (8.6 inches)	92%	very high
September Weather	22°C (72°F)	225 mm (8.8 inches)	89%	very high
October Weather	17°C (63°F)	267 mm (10.5 inches)	87%	high
November Weather	11°C (52°F)	67 mm (2.6 inches)	85%	moderate
December Weather	5°C (42°F)	54 mm (2.1 inches)	86%	moderate