September Weather in Mashike, Japan

Last updated: August 23, 2025

In September, the average temperature in Mashike, Japan hovers around 17°C (63°F), with a minimum dipping to 6°C (44°F) and a maximum rising to 28°C (83°F). Expect about 115 mm (4.5 in) of precipitation spread over 14 days, accompanied by an average humidity of 88%.

September Temperature in Mashike

In September in Mashike, the average temperature is 17°C (63°F). Maximum temperatures can reach 28°C (83°F), while minimums can drop as low as 6°C (44°F). This makes it a great time to explore outdoor activities while enjoying mild weather.

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

The chart illustrates September temperature patterns in Mashike, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mashike, September typically has an average temperature of 17°C (63°F), with highs reaching up to 28°C (83°F) and lows dropping to around 6°C (44°F).

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

September Precipitation in Mashike

In Mashike in September, the precipitation amount is 115 mm (4.5 in) over the course of 14 days.

September Precipitation Trends in Mashike

The chart displays monthly precipitation patterns in Mashike, 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 Mashike, September typically receives around 115 mm (4.5 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 Mashike

In Mashike in September, humidity is 88%. With an average temperature of 17°C (63°F), this humidity feels like a thick blanket enveloping you, making outdoor activities feel stifling and sticky, potentially dampening the joy of exploration and requiring frequent breaks for hydration.

September Average Humidity in Mashike

This chart illustrates the average monthly humidity levels in Mashike, 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 Mashike is approximately 88%, 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 Mashike

In Mashike in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Mashike.

Maximum UV Index Levels in Mashike for September

The chart shows the monthly maximum UV Index (UVI) for Mashike 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 Mashike typically reaches 8, which falls under the very high exposure category.

Data source: Mashike 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 Mashike Compares to Other Months

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

This table compares monthly weather conditions in Mashike, 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 (23°F)	71 mm (2.8 inches)	84%	low
February Weather	-4°C (24°F)	83 mm (3.3 inches)	83%	moderate
March Weather	0°C (33°F)	91 mm (3.6 inches)	81%	high
April Weather	5°C (42°F)	76 mm (3.0 inches)	81%	high
May Weather	12°C (53°F)	100 mm (3.9 inches)	86%	very high
June Weather	15°C (60°F)	108 mm (4.2 inches)	87%	very high
July Weather	20°C (69°F)	99 mm (3.9 inches)	93%	very high
August Weather	21°C (70°F)	198 mm (7.8 inches)	95%	very high
September Weather	17°C (63°F)	115 mm (4.5 inches)	88%	very high
October Weather	11°C (52°F)	160 mm (6.3 inches)	83%	moderate
November Weather	4°C (40°F)	154 mm (6.1 inches)	79%	moderate
December Weather	-3°C (27°F)	120 mm (4.7 inches)	80%	low