January Weather in Kaizuka, Japan

Last updated: August 23, 2025

In Kaizuka, Japan, the average temperature in January hovers around 6°C (44°F). Expect a chilly atmosphere, with minimum temperatures dipping to -3°C (28°F) and highs reaching 17°C (63°F). Don't forget your umbrella; precipitation averages 49 mm (1.9 in) over 6 days, and with an average humidity of 82%, the air feels quite damp. Stay prepared for a varied climate!

January Temperature in Kaizuka

In January in Kaizuka, the average temperature is 6°C (44°F). Maximums can reach 17°C (63°F) and minimums can be as low as -3°C (28°F). It's a great time to visit for those who enjoy cool weather and outdoor activities.

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

The chart illustrates January temperature patterns in Kaizuka, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kaizuka, January typically has an average temperature of 6°C (44°F), with highs reaching up to 17°C (63°F) and lows dropping to around -3°C (28°F).

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

January Precipitation in Kaizuka

In Kaizuka in January, the precipitation amount is 49 mm (1.9 in) over the course of 6 days.

January Precipitation Trends in Kaizuka

The chart displays monthly precipitation patterns in Kaizuka, 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 Kaizuka, January typically receives around 49 mm (1.9 inches) of precipitation spread over approximately 6 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

January Humidity in Kaizuka

In Kaizuka in January humidity is 82%. With an average temperature of 6°C (44°F), this humidity feels like a damp chill that settles into your bones, making travel uncomfortable as every step feels heavy with moisture and the cool air seems to cling to your skin.

January Average Humidity in Kaizuka

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

In Kaizuka in January, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Kaizuka for better planning.

Maximum UV Index Levels in Kaizuka for January

The chart shows the monthly maximum UV Index (UVI) for Kaizuka 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 Kaizuka typically reaches 4, which falls under the moderate exposure category.

Data source: Kaizuka 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 Kaizuka Compares to Other Months

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

This table compares monthly weather conditions in Kaizuka, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	6°C (44°F)	49 mm (1.9 inches)	82%	moderate
February Weather	7°C (44°F)	60 mm (2.4 inches)	79%	moderate
March Weather	11°C (52°F)	103 mm (4.0 inches)	74%	very high
April Weather	15°C (60°F)	119 mm (4.7 inches)	76%	extreme
May Weather	20°C (68°F)	142 mm (5.6 inches)	83%	extreme
June Weather	23°C (74°F)	162 mm (6.4 inches)	87%	extreme
July Weather	27°C (82°F)	286 mm (11.3 inches)	93%	extreme
August Weather	29°C (85°F)	170 mm (6.7 inches)	91%	extreme
September Weather	25°C (78°F)	182 mm (7.2 inches)	87%	very high
October Weather	20°C (68°F)	236 mm (9.3 inches)	85%	high
November Weather	14°C (57°F)	49 mm (1.9 inches)	83%	moderate
December Weather	9°C (48°F)	61 mm (2.4 inches)	83%	moderate