September Weather in Aira, Japan

Last updated: August 23, 2025

In September, the average temperature in Aira, Japan hovers around 26°C (78°F), providing a warm and inviting atmosphere. Temperatures can dip to a comfortable 17°C (62°F) at night, while sunny days may reach a sizzling 34°C (93°F). However, be prepared for some rain, as the region sees 258 mm (10.2 in) of precipitation over 18 days with an average humidity of 80%. So, pack your umbrella and enjoy the lush, vibrant environment!

September Temperature in Aira

In September in Aira, the average temperature is 26°C (78°F), with maximums reaching 34°C (93°F) and minimums dropping as low as 17°C (62°F). This makes it an ideal time for travelers seeking warm weather and pleasant conditions for outdoor activities.

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

The chart illustrates September temperature patterns in Aira, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Aira, September typically has an average temperature of 26°C (78°F), with highs reaching up to 34°C (93°F) and lows dropping to around 17°C (62°F).

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

September Precipitation in Aira

In Aira in September, the total precipitation amount is 258 mm (10.2 in) during a span of 18 days.

September Precipitation Trends in Aira

The chart displays monthly precipitation patterns in Aira, 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 Aira, September typically receives around 258 mm (10.2 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 Aira

In Aira in September, humidity is 80%. With an average temperature of 26°C (78°F), this humidity feels like a warm blanket enveloping you, making travel a bit sticky yet vibrant, as you experience the lively atmosphere infused with the scent of tropical blooms and the soothing presence of nearby water.

September Average Humidity in Aira

This chart illustrates the average monthly humidity levels in Aira, 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 Aira is approximately 80%, 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 Aira

In Aira 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 Aira.

Maximum UV Index Levels in Aira for September

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

Data source: Aira 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 Aira Compares to Other Months

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

This table compares monthly weather conditions in Aira, 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 (47°F)	56 mm (2.2 inches)	72%	moderate
February Weather	9°C (48°F)	104 mm (4.1 inches)	68%	high
March Weather	13°C (55°F)	166 mm (6.5 inches)	72%	very high
April Weather	16°C (62°F)	156 mm (6.2 inches)	79%	extreme
May Weather	20°C (69°F)	265 mm (10.4 inches)	83%	extreme
June Weather	23°C (74°F)	406 mm (16.0 inches)	86%	extreme
July Weather	27°C (81°F)	446 mm (17.6 inches)	90%	extreme
August Weather	28°C (83°F)	213 mm (8.4 inches)	85%	extreme
September Weather	26°C (78°F)	258 mm (10.2 inches)	80%	extreme
October Weather	21°C (70°F)	137 mm (5.4 inches)	78%	very high
November Weather	15°C (60°F)	97 mm (3.8 inches)	76%	high
December Weather	10°C (50°F)	86 mm (3.4 inches)	74%	moderate