September Weather in Kunisaki, Japan

Last updated: August 23, 2025

In Kunisaki, Japan, the average temperature in September hovers around 25°C (77°F). Expect a minimum of 19°C (67°F) and a maximum reaching 30°C (87°F). During this time, you'll encounter 188 mm (7.4 in) of precipitation over about 13 days, contributing to an average humidity of 84%.

September Temperature in Kunisaki

In September in Kunisaki, the average temperature is 25°C (77°F). Maximums can reach 30°C (87°F), while minimums can drop as low as 19°C (67°F). This pleasant climate makes Kunisaki an ideal destination for travelers seeking comfortable weather.

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

The chart illustrates September temperature patterns in Kunisaki, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kunisaki, September typically has an average temperature of 25°C (77°F), with highs reaching up to 30°C (87°F) and lows dropping to around 19°C (67°F).

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

September Precipitation in Kunisaki

In Kunisaki in September, the precipitation amount is 188 mm (7.4 in) falling over the course of 13 days.

September Precipitation Trends in Kunisaki

The chart displays monthly precipitation patterns in Kunisaki, 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 Kunisaki, September typically receives around 188 mm (7.4 inches) of precipitation spread over approximately 13 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in Kunisaki

In Kunisaki in September, humidity is 84%. With an average temperature of 25°C (77°F), this humidity feels like a warm, enveloping blanket that clings to your skin, making outdoor activities challenging and prompting travelers to seek shade and stay hydrated.

September Average Humidity in Kunisaki

This chart illustrates the average monthly humidity levels in Kunisaki, 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 Kunisaki is approximately 84%, 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 Kunisaki

In Kunisaki 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 Kunisaki.

Maximum UV Index Levels in Kunisaki for September

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

Data source: Kunisaki 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 Kunisaki Compares to Other Months

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

This table compares monthly weather conditions in Kunisaki, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	8°C (47°F)	59 mm (2.3 inches)	75%	moderate
February Weather	8°C (47°F)	75 mm (2.9 inches)	71%	high
March Weather	11°C (52°F)	138 mm (5.4 inches)	71%	very high
April Weather	14°C (58°F)	134 mm (5.3 inches)	78%	very high
May Weather	18°C (66°F)	177 mm (7.0 inches)	84%	extreme
June Weather	22°C (72°F)	215 mm (8.4 inches)	86%	extreme
July Weather	26°C (79°F)	331 mm (13.0 inches)	92%	extreme
August Weather	27°C (81°F)	187 mm (7.3 inches)	91%	extreme
September Weather	25°C (77°F)	188 mm (7.4 inches)	84%	very high
October Weather	21°C (70°F)	203 mm (8.0 inches)	83%	high
November Weather	16°C (61°F)	51 mm (2.0 inches)	81%	high
December Weather	11°C (51°F)	60 mm (2.4 inches)	79%	moderate