October Weather in Otsu, Japan

Last updated: August 23, 2025

In Otsu, Japan, the average temperature in October hovers around 18°C (64°F). However, be prepared for a range of weather, as temperatures can dip to a cool 6°C (43°F) or soar up to a warm 32°C (89°F). With an average precipitation amount of 246 mm (9.7 in) spread over 13 days, and humidity levels reaching 85%, it's wise to come equipped for both rain and shine!

October Temperature in Otsu

In October in Otsu, the average temperature is 18°C (64°F). Maximums can reach 32°C (89°F), and minimums can be as low as 6°C (43°F). Travelers should be prepared for a range of temperatures and pack accordingly for both warm and cooler conditions.

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

The chart illustrates October temperature patterns in Otsu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Otsu, October typically has an average temperature of 18°C (64°F), with highs reaching up to 32°C (89°F) and lows dropping to around 6°C (43°F).

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

October Precipitation in Otsu

In Otsu in October, the precipitation amount is 246 mm (9.7 in) accumulated over 13 days.

October Precipitation Trends in Otsu

The chart displays monthly precipitation patterns in Otsu, 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 Otsu, October typically receives around 246 mm (9.7 inches) of precipitation spread over approximately 13 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

October Humidity in Otsu

In Otsu in October, humidity is 85%. With an average temperature of 18°C (64°F), this humidity feels like a muggy blanket enveloping you, making travel a bit heavy and sticky, as the air clings to your skin and every step can feel like wading through molasses.

October Average Humidity in Otsu

This chart illustrates the average monthly humidity levels in Otsu, 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 Otsu is approximately 85%, 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 Otsu

In Otsu in October, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Otsu.

Maximum UV Index Levels in Otsu for October

The chart shows the monthly maximum UV Index (UVI) for Otsu 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 Otsu typically reaches 7, which falls under the high exposure category.

Data source: Otsu 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 Otsu Compares to Other Months

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

This table compares monthly weather conditions in Otsu, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	4°C (39°F)	56 mm (2.2 inches)	82%	moderate
February Weather	4°C (40°F)	62 mm (2.5 inches)	79%	high
March Weather	9°C (48°F)	125 mm (4.9 inches)	74%	very high
April Weather	13°C (56°F)	157 mm (6.2 inches)	76%	very high
May Weather	18°C (66°F)	154 mm (6.1 inches)	83%	extreme
June Weather	22°C (72°F)	161 mm (6.3 inches)	87%	extreme
July Weather	26°C (79°F)	324 mm (12.7 inches)	93%	extreme
August Weather	28°C (82°F)	228 mm (9.0 inches)	91%	extreme
September Weather	23°C (75°F)	172 mm (6.8 inches)	87%	very high
October Weather	18°C (64°F)	246 mm (9.7 inches)	85%	high
November Weather	12°C (53°F)	47 mm (1.8 inches)	83%	moderate
December Weather	6°C (43°F)	66 mm (2.6 inches)	83%	moderate