September Weather in Katsuragi, Japan

Last updated: August 23, 2025

In September, the average temperature in Katsuragi, Japan hovers around 24°C (75°F). Expect a range of temperatures with a minimum of 12°C (53°F) and a potential maximum of 36°C (97°F). Be prepared for 181 mm (7.1 in) of precipitation over approximately 16 days, all while enjoying an average humidity of 87%.

September Temperature in Katsuragi

In September in Katsuragi, the average temperature is 24°C (75°F). Maximums can reach 36°C (97°F), and minimums can be as low as 12°C (53°F). This makes Katsuragi an ideal destination for travelers looking to enjoy warm weather while still having the option for cooler excursions.

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

The chart illustrates September temperature patterns in Katsuragi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Katsuragi, September typically has an average temperature of 24°C (75°F), with highs reaching up to 36°C (97°F) and lows dropping to around 12°C (53°F).

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

September Precipitation in Katsuragi

In Katsuragi in September, the total precipitation amount is 181 mm (7.1 in) over a period of 16 days.

September Precipitation Trends in Katsuragi

The chart displays monthly precipitation patterns in Katsuragi, 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 Katsuragi, September typically receives around 181 mm (7.1 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 Katsuragi

In Katsuragi 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 Katsuragi

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

In Katsuragi 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 Katsuragi.

Maximum UV Index Levels in Katsuragi for September

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

Data source: Katsuragi 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 Katsuragi Compares to Other Months

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

This table compares monthly weather conditions in Katsuragi, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	4°C (40°F)	60 mm (2.4 inches)	82%	moderate
February Weather	5°C (41°F)	73 mm (2.9 inches)	79%	high
March Weather	9°C (49°F)	128 mm (5.1 inches)	74%	very high
April Weather	14°C (57°F)	131 mm (5.1 inches)	76%	extreme
May Weather	19°C (66°F)	157 mm (6.2 inches)	83%	extreme
June Weather	22°C (72°F)	192 mm (7.6 inches)	87%	extreme
July Weather	26°C (80°F)	290 mm (11.4 inches)	93%	extreme
August Weather	28°C (83°F)	174 mm (6.8 inches)	91%	extreme
September Weather	24°C (75°F)	181 mm (7.1 inches)	87%	very high
October Weather	18°C (64°F)	268 mm (10.6 inches)	85%	high
November Weather	12°C (53°F)	51 mm (2.0 inches)	83%	high
December Weather	6°C (44°F)	70 mm (2.8 inches)	83%	moderate