January Weather in Kahoku, Japan

Last updated: August 23, 2025

In January, the average temperature in Kahoku, Japan hovers around 4°C (40°F). You can expect a minimum of -7°C (20°F) and a maximum of 16°C (61°F). This month typically brings 144 mm (5.7 in) of precipitation over about 20 days, contributing to an average humidity level of 80%. Prepare accordingly for a chilly and damp experience!

January Temperature in Kahoku

In January in Kahoku, the average temperature is 4°C (40°F). Maximums can reach 16°C (61°F), while minimums can dip as low as -7°C (20°F). Travelers should be prepared for chilly weather, with the possibility of warmer days and cold nights.

January Weather in Kahoku: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Kahoku, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kahoku, January typically has an average temperature of 4°C (40°F), with highs reaching up to 16°C (61°F) and lows dropping to around -7°C (20°F).

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

January Precipitation in Kahoku

In Kahoku in January, the precipitation amount reaches 144 mm (5.7 in) over the course of 20 days.

January Precipitation Trends in Kahoku

The chart displays monthly precipitation patterns in Kahoku, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Kahoku, January typically receives around 144 mm (5.7 inches) of precipitation spread over approximately 20 days.

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

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Millimeters (mm) Inches (in)

January Humidity in Kahoku

In Kahoku in January, humidity is 80%. With an average temperature of 4°C (40°F), this humidity feels like a damp chill that seeps into your bones, making travel uncomfortable and requiring careful planning for warmth and moisture management.

January Average Humidity in Kahoku

This chart illustrates the average monthly humidity levels in Kahoku, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Kahoku is approximately 80%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Kahoku

In Kahoku in January, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Kahoku, you can check the information here.

Maximum UV Index Levels in Kahoku for January

The chart shows the monthly maximum UV Index (UVI) for Kahoku in January, 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 January, the maximum UV index in Kahoku typically reaches 3, which falls under the moderate exposure category.

Data source: Kahoku January 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 January Weather in Kahoku Compares to Other Months

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

This table compares monthly weather conditions in Kahoku, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	4°C (40°F)	144 mm (5.7 inches)	80%	moderate
February Weather	5°C (40°F)	128 mm (5.0 inches)	78%	moderate
March Weather	9°C (48°F)	129 mm (5.1 inches)	76%	high
April Weather	13°C (55°F)	142 mm (5.6 inches)	77%	very high
May Weather	19°C (66°F)	95 mm (3.8 inches)	85%	very high
June Weather	22°C (72°F)	134 mm (5.3 inches)	89%	extreme
July Weather	27°C (80°F)	270 mm (10.6 inches)	93%	extreme
August Weather	28°C (83°F)	215 mm (8.5 inches)	92%	extreme
September Weather	24°C (75°F)	199 mm (7.8 inches)	84%	very high
October Weather	18°C (65°F)	160 mm (6.3 inches)	81%	high
November Weather	12°C (54°F)	118 mm (4.6 inches)	77%	moderate
December Weather	7°C (45°F)	192 mm (7.6 inches)	79%	moderate