September Weather in Kihoku, Japan

Last updated: August 23, 2025

In September, the average temperature in Kihoku, Japan is a pleasant 23°C (74°F), with minimums dipping to 16°C (62°F) and maximums soaring to 30°C (86°F). However, be prepared for the wet weather, as precipitation averages around 377 mm (14.9 in) over 22 days. With an average humidity of 87%, it's a perfect time to embrace the lush, vibrant atmosphere!

September Temperature in Kihoku

In September in Kihoku, the average temperature is 23°C (74°F). Maximum temperatures can reach up to 30°C (86°F), while the minimum can drop as low as 16°C (62°F). This pleasant climate makes Kihoku an ideal destination for travelers looking to enjoy mild and comfortable weather.

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

The chart illustrates September temperature patterns in Kihoku, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kihoku, September typically has an average temperature of 23°C (74°F), with highs reaching up to 30°C (86°F) and lows dropping to around 16°C (62°F).

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

September Precipitation in Kihoku

In Kihoku in September, the total precipitation amount is 377 mm (14.9 in) spread over 22 days.

September Precipitation Trends in Kihoku

The chart displays monthly precipitation patterns in Kihoku, 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 Kihoku, September typically receives around 377 mm (14.9 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 Kihoku

In Kihoku in September, humidity is 87%. With an average temperature of 23°C (74°F), this humidity feels like a warm, sticky embrace that can quickly wear you down while traveling, making even short walks feel exhausting and necessitating frequent breaks for hydration and cool air.

September Average Humidity in Kihoku

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

In Kihoku 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 Kihoku.

Maximum UV Index Levels in Kihoku for September

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

Data source: Kihoku 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 Kihoku Compares to Other Months

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

This table compares monthly weather conditions in Kihoku, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	6°C (42°F)	84 mm (3.3 inches)	82%	moderate
February Weather	6°C (43°F)	80 mm (3.2 inches)	79%	high
March Weather	10°C (50°F)	208 mm (8.2 inches)	74%	very high
April Weather	13°C (57°F)	192 mm (7.6 inches)	76%	extreme
May Weather	18°C (64°F)	228 mm (9.0 inches)	83%	extreme
June Weather	21°C (70°F)	299 mm (11.8 inches)	87%	extreme
July Weather	24°C (76°F)	351 mm (13.8 inches)	93%	extreme
August Weather	26°C (79°F)	251 mm (9.9 inches)	91%	extreme
September Weather	23°C (74°F)	377 mm (14.9 inches)	87%	very high
October Weather	18°C (65°F)	531 mm (20.9 inches)	85%	high
November Weather	13°C (56°F)	91 mm (3.6 inches)	83%	high
December Weather	8°C (47°F)	101 mm (4.0 inches)	83%	moderate