September Weather in Uken, Japan

Last updated: August 23, 2025

In Uken, Japan, the average temperature in September is a warm 27°C (81°F). Expect minimums of 23°C (73°F) and maximums reaching 30°C (87°F). During this month, the region experiences an average precipitation of 216 mm (8.5 in) spread over 23 days, contributing to a high average humidity of 81%.

September Temperature in Uken

In September in Uken, the average temperature is 27°C (81°F), with maximums reaching 30°C (87°F) and minimums dropping as low as 23°C (73°F). This pleasant climate makes it an ideal time for travelers seeking warm and comfortable weather.

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

The chart illustrates September temperature patterns in Uken, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Uken, September typically has an average temperature of 27°C (81°F), with highs reaching up to 30°C (87°F) and lows dropping to around 23°C (73°F).

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

September Precipitation in Uken

In Uken in September, the precipitation amount is 216 mm (8.5 in) over a period of 23 days.

September Precipitation Trends in Uken

The chart displays monthly precipitation patterns in Uken, 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 Uken, September typically receives around 216 mm (8.5 inches) of precipitation spread over approximately 23 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 Uken

In Uken in September humidity is 81%. With an average temperature of 27°C (81°F), this humidity feels like a warm, heavy blanket enveloping you, making travel quite uncomfortable as it can quickly drain your energy and require frequent hydration breaks.

September Average Humidity in Uken

This chart illustrates the average monthly humidity levels in Uken, 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 Uken is approximately 81%, 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 Uken

In Uken in September, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Uken.

Maximum UV Index Levels in Uken for September

The chart shows the monthly maximum UV Index (UVI) for Uken 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 Uken typically reaches 12, which falls under the extreme exposure category.

Data source: Uken 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 Uken Compares to Other Months

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

This table compares monthly weather conditions in Uken, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	16°C (60°F)	87 mm (3.4 inches)	72%	high
February Weather	16°C (60°F)	105 mm (4.1 inches)	70%	very high
March Weather	18°C (64°F)	155 mm (6.1 inches)	76%	extreme
April Weather	20°C (68°F)	123 mm (4.8 inches)	82%	extreme
May Weather	23°C (73°F)	195 mm (7.7 inches)	84%	extreme
June Weather	25°C (77°F)	471 mm (18.5 inches)	87%	extreme
July Weather	28°C (82°F)	196 mm (7.7 inches)	89%	extreme
August Weather	28°C (83°F)	177 mm (7.0 inches)	84%	extreme
September Weather	27°C (81°F)	216 mm (8.5 inches)	81%	extreme
October Weather	24°C (76°F)	130 mm (5.1 inches)	79%	very high
November Weather	21°C (70°F)	119 mm (4.7 inches)	77%	very high
December Weather	17°C (64°F)	117 mm (4.6 inches)	74%	high