October Weather in Sai, Japan

Last updated: August 23, 2025

In October, the average temperature in Sai, Japan hovers around 16°C (61°F). Expect a minimum of 8°C (46°F) and a maximum of 23°C (74°F). During this month, you'll encounter precipitation of about 156 mm (6.1 in) over approximately 15 days, accompanied by an average humidity level of 81%.

October Temperature in Sai

In October in Sai, the average temperature is 16°C (61°F). The maximum can reach 23°C (74°F), while the minimum can drop to as low as 8°C (46°F). This mild climate makes it an ideal destination for travelers seeking comfortable weather for outdoor activities.

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

The chart illustrates October temperature patterns in Sai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sai, October typically has an average temperature of 16°C (61°F), with highs reaching up to 23°C (74°F) and lows dropping to around 8°C (46°F).

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

October Precipitation in Sai

In Sai in October, the total precipitation amount is 156 mm (6.1 in) distributed over 15 days.

October Precipitation Trends in Sai

The chart displays monthly precipitation patterns in Sai, 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 Sai, October typically receives around 156 mm (6.1 inches) of precipitation spread over approximately 15 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 Sai

In Sai in October, humidity is 81%. With an average temperature of 16°C (61°F), this humidity feels like a warm, heavy blanket wrapping around you as you explore the sights, making it essential to stay hydrated and take regular breaks in the shade.

October Average Humidity in Sai

This chart illustrates the average monthly humidity levels in Sai, 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 Sai is approximately 81%, 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 Sai

In Sai 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 Sai, you can refer to this Hourly UV Index in Sai.

Maximum UV Index Levels in Sai for October

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

Data source: Sai 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 Sai Compares to Other Months

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

This table compares monthly weather conditions in Sai, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	1°C (34°F)	112 mm (4.4 inches)	79%	low
February Weather	1°C (34°F)	117 mm (4.6 inches)	78%	moderate
March Weather	4°C (40°F)	93 mm (3.7 inches)	77%	moderate
April Weather	8°C (46°F)	98 mm (3.9 inches)	78%	very high
May Weather	11°C (53°F)	103 mm (4.1 inches)	86%	very high
June Weather	15°C (59°F)	112 mm (4.4 inches)	91%	very high
July Weather	19°C (67°F)	110 mm (4.3 inches)	95%	very high
August Weather	22°C (72°F)	187 mm (7.4 inches)	97%	extreme
September Weather	21°C (69°F)	132 mm (5.2 inches)	89%	very high
October Weather	16°C (61°F)	156 mm (6.1 inches)	81%	high
November Weather	9°C (49°F)	131 mm (5.1 inches)	78%	moderate
December Weather	3°C (38°F)	167 mm (6.6 inches)	77%	low