October Weather in Onna, Japan

Last updated: August 23, 2025

In Onna, Japan, the average temperature in October hovers around 26°C (78°F), creating a warm and inviting atmosphere. Expect minimum temperatures to drop to 21°C (70°F), while the mercury can peak at 29°C (84°F). This month brings 149 mm (5.8 in) of precipitation spread over 12 days, contributing to the region's lush greenery. Coupled with an average humidity of 80%, it’s a time where both comfort and vibrancy thrive.

October Temperature in Onna

In October in Onna, the average temperature is 26°C (78°F), with maximums reaching 29°C (84°F) and minimums dropping as low as 21°C (70°F). This pleasant climate makes it a great time to visit for outdoor activities and sightseeing.

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

The chart illustrates October temperature patterns in Onna, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Onna, October typically has an average temperature of 26°C (78°F), with highs reaching up to 29°C (84°F) and lows dropping to around 21°C (70°F).

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

October Precipitation in Onna

In Onna in October, the precipitation amount is 149 mm (5.8 in) over the course of 12 days.

October Precipitation Trends in Onna

The chart displays monthly precipitation patterns in Onna, 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 Onna, October typically receives around 149 mm (5.8 inches) of precipitation spread over approximately 12 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 Onna

In Onna in October, 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.

October Average Humidity in Onna

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

In Onna in October, 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 Onna.

Maximum UV Index Levels in Onna for October

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

Data source: Onna 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 Onna Compares to Other Months

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

This table compares monthly weather conditions in Onna, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	18°C (65°F)	99 mm (3.9 inches)	71%	high
February Weather	18°C (65°F)	98 mm (3.9 inches)	71%	very high
March Weather	20°C (68°F)	109 mm (4.3 inches)	76%	extreme
April Weather	21°C (70°F)	146 mm (5.7 inches)	82%	extreme
May Weather	24°C (75°F)	213 mm (8.4 inches)	84%	extreme
June Weather	26°C (80°F)	328 mm (12.9 inches)	86%	extreme
July Weather	28°C (83°F)	180 mm (7.1 inches)	86%	extreme
August Weather	28°C (83°F)	187 mm (7.4 inches)	82%	extreme
September Weather	28°C (82°F)	237 mm (9.3 inches)	82%	extreme
October Weather	26°C (78°F)	149 mm (5.8 inches)	80%	very high
November Weather	23°C (74°F)	106 mm (4.2 inches)	79%	very high
December Weather	20°C (68°F)	162 mm (6.4 inches)	75%	high