October Weather in Kainan, Japan

Last updated: August 23, 2025

In October, the average temperature in Kainan, Japan hovers around 20°C (67°F), creating a comfortably warm atmosphere. However, you might experience a range, with minimums dipping to 10°C (49°F) and maximums soaring to 29°C (84°F). Be prepared for some rain, as 267 mm (10.5 in) can fall over approximately 12 days, coupled with a high average humidity of 85%.

October Temperature in Kainan

In October in Kainan, the average temperature is a comfortable 20°C (67°F), with maximums reaching up to 29°C (84°F) and minimums dropping to as low as 10°C (49°F). This climate makes Kainan an ideal destination for travelers looking to enjoy mild weather and outdoor activities.

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

The chart illustrates October temperature patterns in Kainan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kainan, October typically has an average temperature of 20°C (67°F), with highs reaching up to 29°C (84°F) and lows dropping to around 10°C (49°F).

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

October Precipitation in Kainan

In Kainan in October, the precipitation amount is 267 mm (10.5 in) during a span of 12 days.

October Precipitation Trends in Kainan

The chart displays monthly precipitation patterns in Kainan, 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 Kainan, October typically receives around 267 mm (10.5 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 Kainan

In Kainan in October, humidity is 85%. With an average temperature of 20°C (67°F), this humidity feels like walking through a warm, damp blanket, making travel feel heavy and sluggish, as every step can leave you feeling sticky and breathless.

October Average Humidity in Kainan

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

In Kainan 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 Kainan.

Maximum UV Index Levels in Kainan for October

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

Data source: Kainan 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 Kainan Compares to Other Months

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

This table compares monthly weather conditions in Kainan, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	6°C (44°F)	63 mm (2.5 inches)	82%	moderate
February Weather	7°C (44°F)	76 mm (3.0 inches)	79%	moderate
March Weather	10°C (51°F)	115 mm (4.5 inches)	74%	very high
April Weather	14°C (58°F)	128 mm (5.1 inches)	76%	extreme
May Weather	19°C (67°F)	164 mm (6.5 inches)	83%	extreme
June Weather	22°C (72°F)	199 mm (7.8 inches)	87%	extreme
July Weather	26°C (80°F)	302 mm (11.9 inches)	93%	extreme
August Weather	28°C (83°F)	178 mm (7.0 inches)	91%	extreme
September Weather	25°C (77°F)	203 mm (8.0 inches)	87%	very high
October Weather	20°C (67°F)	267 mm (10.5 inches)	85%	high
November Weather	14°C (57°F)	63 mm (2.5 inches)	83%	moderate
December Weather	9°C (48°F)	76 mm (3.0 inches)	83%	moderate