October Weather in Niihama, Japan

Last updated: August 23, 2025

In Niihama, Japan, the average temperature in October hovers around 19°C (66°F), making it a pleasant time to visit. Expect cooler moments with a minimum temperature of 10°C (50°F), while the days can warm up to a comfortable 28°C (83°F). Be prepared for some rain, as precipitation averages 253 mm (10.0 in) over 13 days, contributing to an average humidity of 82%. Plan accordingly to make the most of your stay!

October Temperature in Niihama

In October in Niihama, the average temperature is 19°C (66°F). Maximums can reach 28°C (83°F) and minimums can drop as low as 10°C (50°F). This comfortable climate makes it an ideal time to explore and enjoy outdoor activities in Niihama.

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

The chart illustrates October temperature patterns in Niihama, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Niihama, October typically has an average temperature of 19°C (66°F), with highs reaching up to 28°C (83°F) and lows dropping to around 10°C (50°F).

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

October Precipitation in Niihama

In Niihama in October, the precipitation amount is 253 mm (10.0 in) over the course of 13 days.

October Precipitation Trends in Niihama

The chart displays monthly precipitation patterns in Niihama, 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 Niihama, October typically receives around 253 mm (10.0 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 Niihama

In Niihama in October humidity is 82%. With an average temperature of 19°C (66°F), this humidity feels like a warm blanket wrapping around you, making it slightly uncomfortable for traveling as you might find yourself constantly seeking shade or a cool breeze.

October Average Humidity in Niihama

This chart illustrates the average monthly humidity levels in Niihama, 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 Niihama is approximately 82%, 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 Niihama

In Niihama 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 Niihama.

Maximum UV Index Levels in Niihama for October

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

Data source: Niihama 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 Niihama Compares to Other Months

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

This table compares monthly weather conditions in Niihama, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	5°C (42°F)	65 mm (2.6 inches)	74%	moderate
February Weather	6°C (43°F)	85 mm (3.4 inches)	70%	high
March Weather	9°C (49°F)	129 mm (5.1 inches)	70%	very high
April Weather	13°C (57°F)	142 mm (5.6 inches)	76%	very high
May Weather	18°C (65°F)	148 mm (5.8 inches)	82%	extreme
June Weather	22°C (71°F)	199 mm (7.8 inches)	86%	extreme
July Weather	26°C (79°F)	357 mm (14.1 inches)	91%	extreme
August Weather	27°C (82°F)	181 mm (7.1 inches)	88%	extreme
September Weather	24°C (75°F)	237 mm (9.3 inches)	85%	very high
October Weather	19°C (66°F)	253 mm (10.0 inches)	82%	high
November Weather	13°C (56°F)	69 mm (2.7 inches)	79%	high
December Weather	8°C (46°F)	80 mm (3.1 inches)	77%	moderate