October Weather in Arai, Japan

Last updated: August 23, 2025

In Arai, Japan, the average temperature in October hovers around 15°C (59°F). Expect a range between a chilly 5°C (41°F) and a warm 29°C (85°F). Prepare for some rain, as 235 mm (9.3 in) of precipitation is likely over 18 days, accompanied by high humidity levels at 87%.

October Temperature in Arai

In October in Arai, the average temperature is 15°C (59°F). The maximum can reach 29°C (85°F) and the minimum can be as low as 5°C (41°F). This mild climate makes Arai a great destination for enjoying outdoor activities and exploring local attractions.

October Weather in Arai: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Arai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Arai, October typically has an average temperature of 15°C (59°F), with highs reaching up to 29°C (85°F) and lows dropping to around 5°C (41°F).

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

October Precipitation in Arai

In Arai in October, the precipitation amount is 235 mm (9.3 in) spread over 18 days.

October Precipitation Trends in Arai

The chart displays monthly precipitation patterns in Arai, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Arai, October typically receives around 235 mm (9.3 inches) of precipitation spread over approximately 18 days.

Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

October Humidity in Arai

In Arai in October, humidity is 87%. With an average temperature of 15°C (59°F), this humidity feels like a heavy blanket, making traveling uncomfortable as the air feels thick and stifling, often leaving you feeling hot and sticky even when the temperature isn't too high.

October Average Humidity in Arai

This chart illustrates the average monthly humidity levels in Arai, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Arai is approximately 87%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Arai

In Arai in October, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Arai, you can refer to this Hourly UV Index in Arai.

Maximum UV Index Levels in Arai for October

The chart shows the monthly maximum UV Index (UVI) for Arai in October, 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 October, the maximum UV index in Arai typically reaches 6, which falls under the high exposure category.

Data source: Arai October 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 October Weather in Arai Compares to Other Months

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

This table compares monthly weather conditions in Arai, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	0°C (32°F)	227 mm (8.9 inches)	88%	moderate
February Weather	0°C (33°F)	188 mm (7.4 inches)	86%	moderate
March Weather	4°C (40°F)	149 mm (5.8 inches)	81%	very high
April Weather	9°C (49°F)	146 mm (5.8 inches)	78%	very high
May Weather	16°C (60°F)	152 mm (6.0 inches)	81%	very high
June Weather	19°C (66°F)	173 mm (6.8 inches)	88%	extreme
July Weather	23°C (75°F)	353 mm (13.9 inches)	92%	extreme
August Weather	25°C (77°F)	210 mm (8.3 inches)	92%	extreme
September Weather	20°C (69°F)	207 mm (8.2 inches)	89%	very high
October Weather	15°C (59°F)	235 mm (9.3 inches)	87%	high
November Weather	8°C (48°F)	144 mm (5.7 inches)	85%	moderate
December Weather	2°C (37°F)	247 mm (9.7 inches)	86%	moderate