January Weather in Otsuki, Japan

Last updated: August 23, 2025

In January, the average temperature in Otsuki, Japan hovers around 2°C (36°F). This month can bring a minimum chill of -11°C (13°F) and a pleasant maximum of 16°C (61°F). Be prepared for precipitation totaling 59 mm (2.3 in) over approximately 7 days, with an average humidity of 76%. Stay cozy and enjoy the unique weather conditions!

January Temperature in Otsuki

In January in Otsuki, the average temperature is 2°C (36°F), with maximums reaching 16°C (61°F) and minimums dipping as low as -11°C (13°F). Travelers should be prepared for chilly conditions and pack accordingly when visiting during this time.

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

The chart illustrates January temperature patterns in Otsuki, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Otsuki, January typically has an average temperature of 2°C (36°F), with highs reaching up to 16°C (61°F) and lows dropping to around -11°C (13°F).

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

January Precipitation in Otsuki

In Otsuki in January, the precipitation amount is 59 mm (2.3 in) over a span of 7 days.

January Precipitation Trends in Otsuki

The chart displays monthly precipitation patterns in Otsuki, 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 Otsuki, January typically receives around 59 mm (2.3 inches) of precipitation spread over approximately 7 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 Otsuki

In Otsuki in January, humidity is 76%. With an average temperature of 2°C (36°F), this humidity feels like an uncomfortable chill that clings to your skin, making even short outdoor excursions seem daunting.

January Average Humidity in Otsuki

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

In Otsuki 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 Otsuki for better planning.

Maximum UV Index Levels in Otsuki for January

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

Data source: Otsuki 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 Otsuki Compares to Other Months

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

This table compares monthly weather conditions in Otsuki, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	2°C (36°F)	59 mm (2.3 inches)	76%	moderate
February Weather	3°C (38°F)	72 mm (2.9 inches)	74%	high
March Weather	7°C (45°F)	182 mm (7.2 inches)	70%	very high
April Weather	11°C (52°F)	164 mm (6.5 inches)	74%	very high
May Weather	16°C (61°F)	164 mm (6.5 inches)	81%	extreme
June Weather	19°C (66°F)	216 mm (8.5 inches)	88%	extreme
July Weather	23°C (74°F)	305 mm (12.0 inches)	93%	extreme
August Weather	25°C (77°F)	172 mm (6.8 inches)	90%	extreme
September Weather	20°C (69°F)	238 mm (9.4 inches)	86%	very high
October Weather	15°C (59°F)	364 mm (14.3 inches)	83%	high
November Weather	10°C (50°F)	84 mm (3.3 inches)	80%	moderate
December Weather	4°C (40°F)	68 mm (2.7 inches)	78%	moderate