January Weather in Wassamu, Japan

Last updated: August 23, 2025

In January, the average temperature in Wassamu, Japan hovers around -8°C (18°F). Be prepared for chilly extremes, as temperatures can plummet to a brisk -23°C (-10°F), while reaching a maximum of 4°C (40°F). With 69 mm (2.7 in) of precipitation spread over 18 days, expect a damp atmosphere complemented by an average humidity of 84%. Bundle up and brace yourself for frosty days ahead!

January Temperature in Wassamu

In January in Wassamu, the average temperature is -8°C (18°F), with maxima reaching up to 4°C (40°F) and minima dropping as low as -23°C (-10°F). Travelers should prepare for frigid conditions and pack appropriate winter gear for this chilly destination.

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

The chart illustrates January temperature patterns in Wassamu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Wassamu, January typically has an average temperature of -8°C (18°F), with highs reaching up to 4°C (40°F) and lows dropping to around -23°C (-10°F).

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

January Precipitation in Wassamu

In Wassamu in January, the precipitation amount is 69 mm (2.7 in) recorded over a span of 18 days.

January Precipitation Trends in Wassamu

The chart displays monthly precipitation patterns in Wassamu, 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 Wassamu, January typically receives around 69 mm (2.7 inches) of precipitation spread over approximately 18 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 Wassamu

In Wassamu in January humidity is 84%. With an average temperature of -8°C (18°F), this humidity feels like a biting chill that seeps into your bones, making outdoor exploration challenging and requiring extra layers for comfort.

January Average Humidity in Wassamu

This chart illustrates the average monthly humidity levels in Wassamu, 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 Wassamu is approximately 84%, 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 Wassamu

In Wassamu in January, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Wassamu, you can visit Hourly UV Index in Wassamu.

Maximum UV Index Levels in Wassamu for January

The chart shows the monthly maximum UV Index (UVI) for Wassamu 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 Wassamu typically reaches 2, which falls under the low exposure category.

Data source: Wassamu 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 Wassamu Compares to Other Months

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

This table compares monthly weather conditions in Wassamu, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-8°C (18°F)	69 mm (2.7 inches)	84%	low
February Weather	-7°C (21°F)	88 mm (3.5 inches)	83%	moderate
March Weather	-1°C (31°F)	92 mm (3.6 inches)	81%	high
April Weather	5°C (42°F)	75 mm (3.0 inches)	81%	high
May Weather	12°C (54°F)	101 mm (4.0 inches)	86%	very high
June Weather	15°C (59°F)	98 mm (3.8 inches)	87%	very high
July Weather	20°C (68°F)	126 mm (4.9 inches)	93%	very high
August Weather	20°C (68°F)	191 mm (7.5 inches)	95%	very high
September Weather	16°C (61°F)	92 mm (3.6 inches)	88%	very high
October Weather	9°C (49°F)	153 mm (6.0 inches)	83%	moderate
November Weather	3°C (37°F)	159 mm (6.2 inches)	79%	moderate
December Weather	-5°C (24°F)	127 mm (5.0 inches)	80%	low