October Weather in Omachi, Japan

Last updated: August 23, 2025

In Omachi, Japan, the average temperature in October is a comfortable 10°C (50°F). However, be prepared for a range, as the minimum can drop to -3°C (27°F) while the maximum can reach up to 23°C (73°F). Expect moderate precipitation during this month, with about 284 mm (11.2 in) falling over 19 days, contributing to an average humidity of 87%.

October Temperature in Omachi

In October in Omachi, the average temperature is 10°C (50°F), with maximums reaching 23°C (73°F) and minimums dropping as low as -3°C (27°F). This wide temperature range makes it essential for travelers to pack layered clothing to stay comfortable throughout the day.

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

The chart illustrates October temperature patterns in Omachi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Omachi, October typically has an average temperature of 10°C (50°F), with highs reaching up to 23°C (73°F) and lows dropping to around -3°C (27°F).

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

October Precipitation in Omachi

In Omachi in October, the precipitation amount is 284 mm (11.2 in) spread over 19 days.

October Precipitation Trends in Omachi

The chart displays monthly precipitation patterns in Omachi, 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 Omachi, October typically receives around 284 mm (11.2 inches) of precipitation spread over approximately 19 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 Omachi

In Omachi in October humidity is 87%. With an average temperature of 10°C (50°F), this humidity feels like a heavy cloak wrapping around you, making every step feel laborious and the air thick with moisture, challenging your comfort while traveling.

October Average Humidity in Omachi

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

In Omachi 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 Omachi.

Maximum UV Index Levels in Omachi for October

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

Data source: Omachi 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 Omachi Compares to Other Months

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

This table compares monthly weather conditions in Omachi, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-8°C (19°F)	193 mm (7.6 inches)	88%	moderate
February Weather	-7°C (20°F)	181 mm (7.1 inches)	86%	high
March Weather	-1°C (30°F)	198 mm (7.8 inches)	81%	very high
April Weather	4°C (39°F)	226 mm (8.9 inches)	78%	very high
May Weather	11°C (52°F)	276 mm (10.9 inches)	81%	extreme
June Weather	15°C (59°F)	310 mm (12.2 inches)	88%	extreme
July Weather	19°C (67°F)	565 mm (22.3 inches)	92%	extreme
August Weather	20°C (69°F)	400 mm (15.8 inches)	92%	extreme
September Weather	16°C (61°F)	334 mm (13.1 inches)	89%	very high
October Weather	10°C (50°F)	284 mm (11.2 inches)	87%	high
November Weather	3°C (37°F)	139 mm (5.5 inches)	85%	moderate
December Weather	-5°C (24°F)	206 mm (8.1 inches)	86%	moderate