January Weather in Kasama, Japan

Last updated: August 23, 2025

In January, the average temperature in Kasama, Japan hovers around 4°C (39°F). Expect a chill in the air, as temperatures can dip as low as -10°C (15°F), while occasionally reaching a comfortable 16°C (61°F). During this month, precipitation averages 41 mm (1.6 in) over about 5 days, contributing to an average humidity of 76%.

January Temperature in Kasama

In January in Kasama, the average temperature is 4°C (39°F). Maximums can reach 16°C (61°F) and minimums can be as low as -10°C (15°F). Be prepared for a cool and potentially chilly visit, so pack accordingly!

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

The chart illustrates January temperature patterns in Kasama, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kasama, January typically has an average temperature of 4°C (39°F), with highs reaching up to 16°C (61°F) and lows dropping to around -10°C (15°F).

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

January Precipitation in Kasama

In Kasama in January, the precipitation amount is 41 mm (1.6 in) over a period of 5 days.

January Precipitation Trends in Kasama

The chart displays monthly precipitation patterns in Kasama, 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 Kasama, January typically receives around 41 mm (1.6 inches) of precipitation spread over approximately 5 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 Kasama

In Kasama in January humidity is 76%. With an average temperature of 4°C (39°F), this humidity feels like a damp chill that seeps into your bones, making it quite uncomfortable for traveling.

January Average Humidity in Kasama

This chart illustrates the average monthly humidity levels in Kasama, 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 Kasama is approximately 76%, 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 Kasama

In Kasama 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 Kasama, you can check the information here.

Maximum UV Index Levels in Kasama for January

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

Data source: Kasama 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 Kasama Compares to Other Months

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

This table compares monthly weather conditions in Kasama, 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 (39°F)	41 mm (1.6 inches)	76%	moderate
February Weather	5°C (41°F)	40 mm (1.6 inches)	75%	moderate
March Weather	9°C (48°F)	137 mm (5.4 inches)	72%	high
April Weather	13°C (56°F)	122 mm (4.8 inches)	73%	very high
May Weather	18°C (65°F)	132 mm (5.2 inches)	80%	very high
June Weather	21°C (70°F)	141 mm (5.5 inches)	87%	extreme
July Weather	25°C (77°F)	226 mm (8.9 inches)	92%	extreme
August Weather	27°C (81°F)	140 mm (5.5 inches)	90%	very high
September Weather	23°C (73°F)	169 mm (6.7 inches)	84%	very high
October Weather	17°C (63°F)	225 mm (8.9 inches)	80%	high
November Weather	12°C (54°F)	69 mm (2.7 inches)	77%	moderate
December Weather	6°C (43°F)	56 mm (2.2 inches)	77%	moderate