January Weather in Kasagi, Japan

Last updated: August 23, 2025

In January, the average temperature in Kasagi, Japan hovers around 4°C (40°F), with a minimum of -7°C (20°F) and a maximum reaching 16°C (61°F). Expect 54 mm (2.1 in) of precipitation over approximately 8 days, accompanied by an average humidity level of 82%. Stay prepared for a chilly and wet month!

January Temperature in Kasagi

In January in Kasagi, 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 Kasagi: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Kasagi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kasagi, 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 Kasagi generated using information from the Copernicus Climate Change Service.

January Precipitation in Kasagi

In Kasagi in January, the total precipitation amount reaches 54 mm (2.1 in) over a span of 8 days.

January Precipitation Trends in Kasagi

The chart displays monthly precipitation patterns in Kasagi, 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 Kasagi, January typically receives around 54 mm (2.1 inches) of precipitation spread over approximately 8 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 Kasagi

In Kasagi in January, humidity is 82%. With an average temperature of 4°C (40°F), this humidity feels like a chilly dampness that lingers in the air, making travel slightly uncomfortable as the cold penetrates through layers of clothing, often leaving you feeling chilled and clammy.

January Average Humidity in Kasagi

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

In Kasagi 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 Kasagi for better planning.

Maximum UV Index Levels in Kasagi for January

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

Data source: Kasagi 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 Kasagi Compares to Other Months

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

This table compares monthly weather conditions in Kasagi, 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)	54 mm (2.1 inches)	82%	moderate
February Weather	5°C (41°F)	65 mm (2.5 inches)	79%	high
March Weather	9°C (49°F)	124 mm (4.9 inches)	74%	very high
April Weather	14°C (57°F)	129 mm (5.1 inches)	76%	extreme
May Weather	19°C (66°F)	148 mm (5.8 inches)	83%	extreme
June Weather	22°C (73°F)	156 mm (6.1 inches)	87%	extreme
July Weather	26°C (80°F)	263 mm (10.3 inches)	93%	extreme
August Weather	28°C (83°F)	156 mm (6.1 inches)	91%	extreme
September Weather	24°C (75°F)	150 mm (5.9 inches)	87%	very high
October Weather	18°C (65°F)	248 mm (9.7 inches)	85%	high
November Weather	12°C (53°F)	40 mm (1.6 inches)	83%	moderate
December Weather	6°C (44°F)	61 mm (2.4 inches)	83%	moderate