September Weather in Mima, Japan

Last updated: August 23, 2025

In Mima, Japan, the average temperature during September is a warm 23°C (74°F). Expect a range of temperatures, with a minimum of 14°C (57°F) and a maximum reaching up to 33°C (92°F). Keep an umbrella handy as the area experiences 294 mm (11.6 in) of precipitation over 18 days. The humidity levels can be quite high, averaging around 85%, adding to the tropical feel of this beautiful destination.

September Temperature in Mima

In September in Mima, the average temperature is 23°C (74°F). The maximum can reach 33°C (92°F), while the minimum can be as low as 14°C (57°F). This pleasant weather makes it an ideal time to explore the outdoors and enjoy various activities in Mima.

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

The chart illustrates September temperature patterns in Mima, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mima, September typically has an average temperature of 23°C (74°F), with highs reaching up to 33°C (92°F) and lows dropping to around 14°C (57°F).

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

September Precipitation in Mima

In Mima in September, the precipitation amount is 294 mm (11.6 in) over a span of 18 days.

September Precipitation Trends in Mima

The chart displays monthly precipitation patterns in Mima, 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 Mima, September typically receives around 294 mm (11.6 inches) of precipitation spread over approximately 18 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 Mima

In Mima in September humidity is 85%. With an average temperature of 23°C (74°F), this humidity feels like a thick, steamy blanket wrapping around you, making outdoor activities draining and sweaty, and leaving you longing for a cool breeze or a refreshing drink to ease the discomfort while traveling.

September Average Humidity in Mima

This chart illustrates the average monthly humidity levels in Mima, 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 Mima is approximately 85%, 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 Mima

In Mima 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 Mima.

Maximum UV Index Levels in Mima for September

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

Data source: Mima 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 Mima Compares to Other Months

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

This table compares monthly weather conditions in Mima, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	5°C (41°F)	61 mm (2.4 inches)	74%	moderate
February Weather	5°C (42°F)	73 mm (2.9 inches)	70%	high
March Weather	10°C (50°F)	135 mm (5.3 inches)	70%	very high
April Weather	14°C (57°F)	146 mm (5.7 inches)	76%	extreme
May Weather	18°C (65°F)	179 mm (7.0 inches)	82%	extreme
June Weather	22°C (71°F)	241 mm (9.5 inches)	86%	extreme
July Weather	26°C (78°F)	391 mm (15.4 inches)	91%	extreme
August Weather	27°C (81°F)	242 mm (9.5 inches)	88%	extreme
September Weather	23°C (74°F)	294 mm (11.6 inches)	85%	very high
October Weather	18°C (65°F)	333 mm (13.1 inches)	82%	high
November Weather	12°C (54°F)	63 mm (2.5 inches)	79%	high
December Weather	7°C (45°F)	62 mm (2.4 inches)	77%	moderate