September Weather in Kawaminami, Japan

Last updated: August 23, 2025

In Kawaminami, Japan, the average temperature in September hovers around 25°C (78°F), with a comfortable minimum of 17°C (62°F) and a warm maximum reaching 33°C (91°F). Be prepared for some rainfall, as 329 mm (13.0 in) of precipitation can occur over 20 days. The air tends to be quite humid, with an average humidity level of 84%, creating a tropical atmosphere perfect for exploring!

September Temperature in Kawaminami

In September in Kawaminami, the average temperature is 25°C (78°F), with maximums reaching up to 33°C (91°F) and minimums dropping as low as 17°C (62°F). This pleasant and mild climate makes it an ideal destination for travelers seeking comfortable weather and outdoor activities.

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

The chart illustrates September temperature patterns in Kawaminami, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kawaminami, September typically has an average temperature of 25°C (78°F), with highs reaching up to 33°C (91°F) and lows dropping to around 17°C (62°F).

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

September Precipitation in Kawaminami

In Kawaminami in September, the total precipitation amount is 329 mm (13.0 in) spread over the course of 20 days.

September Precipitation Trends in Kawaminami

The chart displays monthly precipitation patterns in Kawaminami, 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 Kawaminami, September typically receives around 329 mm (13.0 inches) of precipitation spread over approximately 20 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 Kawaminami

In Kawaminami in September, humidity is 84%. With an average temperature of 25°C (78°F), this humidity feels like a warm, muggy embrace that can be quite stifling for traveling, making you crave cool breezes and plenty of hydration as you explore.

September Average Humidity in Kawaminami

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

In Kawaminami in September, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Kawaminami.

Maximum UV Index Levels in Kawaminami for September

The chart shows the monthly maximum UV Index (UVI) for Kawaminami 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 Kawaminami typically reaches 11, which falls under the extreme exposure category.

Data source: Kawaminami 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 Kawaminami Compares to Other Months

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

This table compares monthly weather conditions in Kawaminami, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	9°C (48°F)	56 mm (2.2 inches)	75%	moderate
February Weather	9°C (49°F)	96 mm (3.8 inches)	71%	high
March Weather	13°C (55°F)	156 mm (6.1 inches)	71%	very high
April Weather	16°C (61°F)	130 mm (5.1 inches)	78%	very high
May Weather	20°C (68°F)	207 mm (8.1 inches)	84%	extreme
June Weather	23°C (74°F)	277 mm (10.9 inches)	86%	extreme
July Weather	27°C (81°F)	381 mm (15.0 inches)	92%	extreme
August Weather	28°C (83°F)	283 mm (11.1 inches)	91%	extreme
September Weather	25°C (78°F)	329 mm (13.0 inches)	84%	extreme
October Weather	21°C (70°F)	229 mm (9.0 inches)	83%	very high
November Weather	15°C (60°F)	77 mm (3.0 inches)	81%	high
December Weather	10°C (51°F)	59 mm (2.3 inches)	79%	moderate