January Weather in Mutsu, Japan

Last updated: August 23, 2025

In January, the average temperature in Mutsu, Japan hovers around 1°C (34°F), with a minimum dipping to -7°C (20°F) and a maximum reaching 8°C (48°F). Expect a precipitation amount of about 130 mm (5.1 in) spread over 21 days, contributing to an overall humidity level of 79%. Prepare for a chilly, damp month!

January Temperature in Mutsu

In January in Mutsu, the average temperature is 1°C (34°F). The maximum can reach 8°C (48°F), and the minimum can be as low as -7°C (20°F). Travelers should be prepared for chilly weather and pack accordingly to fully enjoy their visit.

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

The chart illustrates January temperature patterns in Mutsu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mutsu, January typically has an average temperature of 1°C (34°F), with highs reaching up to 8°C (48°F) and lows dropping to around -7°C (20°F).

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

January Precipitation in Mutsu

In Mutsu in January, the precipitation amount reaches 130 mm (5.1 in) over the course of 21 days.

January Precipitation Trends in Mutsu

The chart displays monthly precipitation patterns in Mutsu, 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 Mutsu, January typically receives around 130 mm (5.1 inches) of precipitation spread over approximately 21 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 Mutsu

In Mutsu in January, humidity is 79%. With an average temperature of 1°C (34°F), this humidity feels like an icy blanket wrapping around you, making travel particularly brisk and requiring extra layers to stay warm and comfortable.

January Average Humidity in Mutsu

This chart illustrates the average monthly humidity levels in Mutsu, 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 Mutsu is approximately 79%, 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 Mutsu

In Mutsu 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 Mutsu, you can check the information here.

Maximum UV Index Levels in Mutsu for January

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

Data source: Mutsu 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 Mutsu Compares to Other Months

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

This table compares monthly weather conditions in Mutsu, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	1°C (34°F)	130 mm (5.1 inches)	79%	moderate
February Weather	1°C (33°F)	129 mm (5.1 inches)	78%	moderate
March Weather	4°C (39°F)	93 mm (3.7 inches)	77%	moderate
April Weather	7°C (45°F)	95 mm (3.7 inches)	78%	very high
May Weather	11°C (53°F)	97 mm (3.8 inches)	86%	very high
June Weather	15°C (59°F)	114 mm (4.5 inches)	91%	very high
July Weather	19°C (67°F)	109 mm (4.3 inches)	95%	very high
August Weather	22°C (71°F)	193 mm (7.6 inches)	97%	extreme
September Weather	20°C (69°F)	113 mm (4.5 inches)	89%	very high
October Weather	16°C (60°F)	170 mm (6.7 inches)	81%	high
November Weather	10°C (49°F)	118 mm (4.7 inches)	78%	moderate
December Weather	4°C (39°F)	202 mm (8.0 inches)	77%	low