September Weather in Matsuura, Japan

Last updated: August 23, 2025

In September, the average temperature in Matsuura, Japan hovers around 25°C (77°F). Expect a minimum of 17°C (63°F) and soaring highs of 34°C (94°F). With 222 mm (8.7 in) of precipitation spread over 15 days, it's a damp month, complemented by an average humidity level of 84%. Get ready for a lively and humid atmosphere!

September Temperature in Matsuura

In September in Matsuura, the average temperature is 25°C (77°F). Maximums can reach 34°C (94°F), and minimums can be as low as 17°C (63°F). This pleasant climate makes it an ideal time to explore the outdoors and enjoy various activities.

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

The chart illustrates September temperature patterns in Matsuura, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Matsuura, September typically has an average temperature of 25°C (77°F), with highs reaching up to 34°C (94°F) and lows dropping to around 17°C (63°F).

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

September Precipitation in Matsuura

In Matsuura in September, the precipitation amount is 222 mm (8.7 in) over a span of 15 days.

September Precipitation Trends in Matsuura

The chart displays monthly precipitation patterns in Matsuura, 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 Matsuura, September typically receives around 222 mm (8.7 inches) of precipitation spread over approximately 15 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 Matsuura

In Matsuura in September, humidity is 84%. With an average temperature of 25°C (77°F), this humidity feels like a warm, enveloping blanket that clings to your skin, making outdoor activities challenging and prompting travelers to seek shade and stay hydrated.

September Average Humidity in Matsuura

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

In Matsuura 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 Matsuura.

Maximum UV Index Levels in Matsuura for September

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

Data source: Matsuura 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 Matsuura Compares to Other Months

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

This table compares monthly weather conditions in Matsuura, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	8°C (46°F)	57 mm (2.2 inches)	73%	moderate
February Weather	8°C (47°F)	79 mm (3.1 inches)	69%	high
March Weather	12°C (54°F)	132 mm (5.2 inches)	71%	very high
April Weather	16°C (60°F)	114 mm (4.5 inches)	79%	very high
May Weather	20°C (68°F)	168 mm (6.6 inches)	87%	extreme
June Weather	23°C (74°F)	200 mm (7.9 inches)	91%	extreme
July Weather	27°C (80°F)	361 mm (14.2 inches)	97%	extreme
August Weather	28°C (83°F)	288 mm (11.3 inches)	94%	extreme
September Weather	25°C (77°F)	222 mm (8.7 inches)	84%	extreme
October Weather	20°C (68°F)	109 mm (4.3 inches)	79%	high
November Weather	15°C (58°F)	51 mm (2.0 inches)	75%	high
December Weather	9°C (49°F)	74 mm (2.9 inches)	72%	moderate