September Weather in Omura, Japan

Last updated: August 23, 2025

During September, the average temperature in Omura, Japan hovers around 25°C (77°F). Expect a range from a comfortable 19°C (66°F) to a warm 33°C (92°F). With 220 mm (8.7 in) of precipitation spread over 14 days, humidity averages a high 84%, creating a moist atmosphere. Prepare for a blend of warmth and occasional rainfall!

September Temperature in Omura

In September in Omura, the average temperature is 25°C (77°F). Maximum temperatures can reach 33°C (92°F), while the minimum can drop as low as 19°C (66°F). This comfortable climate makes it an ideal destination for travelers seeking pleasant weather and outdoor adventures.

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

The chart illustrates September temperature patterns in Omura, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Omura, September typically has an average temperature of 25°C (77°F), with highs reaching up to 33°C (92°F) and lows dropping to around 19°C (66°F).

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

September Precipitation in Omura

In Omura in September, the total precipitation amount is 220 mm (8.7 in) spread over a duration of 14 days.

September Precipitation Trends in Omura

The chart displays monthly precipitation patterns in Omura, 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 Omura, September typically receives around 220 mm (8.7 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 Omura

In Omura 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 Omura

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

In Omura 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 Omura.

Maximum UV Index Levels in Omura for September

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

Data source: Omura 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 Omura Compares to Other Months

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

This table compares monthly weather conditions in Omura, 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)	53 mm (2.1 inches)	73%	moderate
February Weather	8°C (47°F)	89 mm (3.5 inches)	69%	high
March Weather	12°C (53°F)	140 mm (5.5 inches)	71%	very high
April Weather	15°C (60°F)	127 mm (5.0 inches)	79%	very high
May Weather	20°C (68°F)	204 mm (8.0 inches)	87%	extreme
June Weather	23°C (74°F)	230 mm (9.1 inches)	91%	extreme
July Weather	27°C (80°F)	409 mm (16.1 inches)	97%	extreme
August Weather	28°C (83°F)	321 mm (12.6 inches)	94%	extreme
September Weather	25°C (77°F)	220 mm (8.7 inches)	84%	extreme
October Weather	20°C (69°F)	113 mm (4.4 inches)	79%	high
November Weather	15°C (59°F)	66 mm (2.6 inches)	75%	high
December Weather	10°C (50°F)	78 mm (3.1 inches)	72%	moderate