September Weather in Suzu, Japan

Last updated: August 23, 2025

In Suzu, Japan, the average temperature in September reaches a pleasant 24°C (75°F). Expect a minimum of 19°C (66°F) and a maximum of 32°C (89°F), making for warm and inviting days. However, be prepared for some rain, with an average precipitation of 225 mm (8.9 in) spread over 14 days. Notably, the average humidity hovers around a moderate 84%, adding a touch of tropical feel to the atmosphere.

September Temperature in Suzu

In September in Suzu, the average temperature is 24°C (75°F), with maximums reaching up to 32°C (89°F) and minimums dropping as low as 19°C (66°F). This makes it an ideal time for travelers looking to enjoy warm and pleasant weather.

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

The chart illustrates September temperature patterns in Suzu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Suzu, September typically has an average temperature of 24°C (75°F), with highs reaching up to 32°C (89°F) and lows dropping to around 19°C (66°F).

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

September Precipitation in Suzu

In Suzu in September, the total precipitation amount is 225 mm (8.9 in) spread over the course of 14 days.

September Precipitation Trends in Suzu

The chart displays monthly precipitation patterns in Suzu, 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 Suzu, September typically receives around 225 mm (8.9 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 Suzu

In Suzu in September humidity is 84%. With an average temperature of 24°C (75°F), this humidity feels like a warm, tropical embrace, making it essential for travelers to stay hydrated and plan outdoor activities for early mornings or late afternoons when the heat is more bearable.

September Average Humidity in Suzu

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

In Suzu in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Suzu.

Maximum UV Index Levels in Suzu for September

The chart shows the monthly maximum UV Index (UVI) for Suzu 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 Suzu typically reaches 9, which falls under the very high exposure category.

Data source: Suzu 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 Suzu Compares to Other Months

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

This table compares monthly weather conditions in Suzu, 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 (42°F)	200 mm (7.9 inches)	80%	moderate
February Weather	5°C (42°F)	157 mm (6.2 inches)	78%	moderate
March Weather	8°C (47°F)	117 mm (4.6 inches)	76%	high
April Weather	11°C (52°F)	131 mm (5.2 inches)	77%	very high
May Weather	16°C (61°F)	94 mm (3.7 inches)	85%	very high
June Weather	20°C (67°F)	118 mm (4.7 inches)	89%	very high
July Weather	24°C (76°F)	258 mm (10.2 inches)	93%	extreme
August Weather	27°C (80°F)	198 mm (7.8 inches)	92%	extreme
September Weather	24°C (75°F)	225 mm (8.9 inches)	84%	very high
October Weather	19°C (66°F)	173 mm (6.8 inches)	81%	high
November Weather	14°C (57°F)	167 mm (6.6 inches)	77%	moderate
December Weather	8°C (47°F)	253 mm (10.0 inches)	79%	moderate