September Weather in Fukuyama, Japan

Last updated: August 23, 2025

In September, the average temperature in Fukuyama, Japan is a pleasant 25°C (77°F). However, temperatures can vary widely, with a minimum of 14°C (58°F) and a maximum reaching up to 35°C (95°F). During this month, expect around 174 mm (6.9 in) of precipitation spread over approximately 12 days, contributing to an average humidity of 87%.

September Temperature in Fukuyama

In September in Fukuyama, the average temperature is 25°C (77°F). Maximums can reach 35°C (95°F) and minimums can be as low as 14°C (58°F). This makes it a great time for travelers to enjoy pleasant weather while exploring the area.

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

The chart illustrates September temperature patterns in Fukuyama, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Fukuyama, September typically has an average temperature of 25°C (77°F), with highs reaching up to 35°C (95°F) and lows dropping to around 14°C (58°F).

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

September Precipitation in Fukuyama

In Fukuyama in September, the total precipitation amount is 174 mm (6.9 in) over the course of 12 days.

September Precipitation Trends in Fukuyama

The chart displays monthly precipitation patterns in Fukuyama, 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 Fukuyama, September typically receives around 174 mm (6.9 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 Fukuyama

In Fukuyama in September, humidity is 87%. With an average temperature of 25°C (77°F), this humidity feels like a thick, warm blanket enveloping you, making travel a challenge as sweat clings to your skin and the air feels heavy and stifling.

September Average Humidity in Fukuyama

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

In Fukuyama 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 Fukuyama.

Maximum UV Index Levels in Fukuyama for September

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

Data source: Fukuyama 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 Fukuyama Compares to Other Months

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

This table compares monthly weather conditions in Fukuyama, 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 (43°F)	40 mm (1.6 inches)	82%	moderate
February Weather	6°C (44°F)	54 mm (2.1 inches)	79%	moderate
March Weather	10°C (51°F)	93 mm (3.7 inches)	73%	very high
April Weather	15°C (59°F)	117 mm (4.6 inches)	74%	very high
May Weather	20°C (68°F)	107 mm (4.2 inches)	84%	extreme
June Weather	23°C (74°F)	149 mm (5.9 inches)	86%	extreme
July Weather	27°C (81°F)	314 mm (12.4 inches)	92%	extreme
August Weather	29°C (85°F)	166 mm (6.5 inches)	92%	extreme
September Weather	25°C (77°F)	174 mm (6.9 inches)	87%	very high
October Weather	19°C (67°F)	164 mm (6.4 inches)	85%	high
November Weather	13°C (56°F)	31 mm (1.2 inches)	84%	high
December Weather	8°C (46°F)	45 mm (1.8 inches)	82%	moderate