September Weather in Kasai, Japan

Last updated: August 23, 2025

In Kasai, Japan, the average temperature in September is a pleasant 24°C (75°F). However, it can vary significantly, with minimums dipping to 12°C (54°F) and maximums soaring to 35°C (95°F). Be prepared for wet days as the area sees approximately 240 mm (9.4 in) of precipitation over 14 days, accompanied by a high average humidity of 87%.

September Temperature in Kasai

In September in Kasai, the average temperature is 24°C (75°F), with maximums reaching 35°C (95°F) and minimums dropping to as low as 12°C (54°F). This pleasant weather makes it an ideal time for outdoor activities and exploring the local attractions.

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

The chart illustrates September temperature patterns in Kasai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kasai, September typically has an average temperature of 24°C (75°F), with highs reaching up to 35°C (95°F) and lows dropping to around 12°C (54°F).

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

September Precipitation in Kasai

In Kasai in September, the total precipitation amount is 240 mm (9.4 in) over the course of 14 days.

September Precipitation Trends in Kasai

The chart displays monthly precipitation patterns in Kasai, 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 Kasai, September typically receives around 240 mm (9.4 inches) of precipitation spread over approximately 14 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 Kasai

In Kasai in September, humidity is 87%. With an average temperature of 24°C (75°F), this humidity feels like a warm, sticky embrace that clings to your skin, making outdoor activities feel heavier and more exhausting, and the air thickens, leaving you longing for shade and refreshing breezes as you navigate your adventures.

September Average Humidity in Kasai

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

In Kasai 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 Kasai.

Maximum UV Index Levels in Kasai for September

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

Data source: Kasai 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 Kasai Compares to Other Months

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

This table compares monthly weather conditions in Kasai, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	4°C (40°F)	44 mm (1.7 inches)	82%	moderate
February Weather	5°C (41°F)	55 mm (2.2 inches)	79%	high
March Weather	9°C (49°F)	116 mm (4.5 inches)	73%	very high
April Weather	14°C (57°F)	134 mm (5.3 inches)	74%	very high
May Weather	19°C (66°F)	125 mm (4.9 inches)	84%	extreme
June Weather	22°C (72°F)	161 mm (6.3 inches)	86%	extreme
July Weather	26°C (79°F)	336 mm (13.2 inches)	92%	extreme
August Weather	28°C (82°F)	241 mm (9.5 inches)	92%	extreme
September Weather	24°C (75°F)	240 mm (9.4 inches)	87%	very high
October Weather	18°C (65°F)	220 mm (8.7 inches)	85%	high
November Weather	12°C (54°F)	41 mm (1.6 inches)	84%	moderate
December Weather	6°C (44°F)	59 mm (2.3 inches)	82%	moderate