January Weather in Shiozawa, Japan

Last updated: August 23, 2025

In January, the average temperature in Shiozawa, Japan hovers around -3°C (28°F), with fluctuations that can see lows of -14°C (6°F) and highs reaching up to 8°C (47°F). Expect 199 mm (7.8 in) of precipitation spread over 22 days, contributing to the region's average humidity of 88%. Dress warmly and be prepared for a damp environment!

January Temperature in Shiozawa

In January in Shiozawa, the average temperature is -3°C (28°F). Maximum temperatures can reach 8°C (47°F), while minimums can drop as low as -14°C (6°F). Be sure to pack warm clothing to stay comfortable during your travels!

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

The chart illustrates January temperature patterns in Shiozawa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Shiozawa, January typically has an average temperature of -3°C (28°F), with highs reaching up to 8°C (47°F) and lows dropping to around -14°C (6°F).

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

January Precipitation in Shiozawa

In Shiozawa in January, the precipitation amount is 199 mm (7.8 in) over the course of 22 days.

January Precipitation Trends in Shiozawa

The chart displays monthly precipitation patterns in Shiozawa, 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 Shiozawa, January typically receives around 199 mm (7.8 inches) of precipitation spread over approximately 22 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 Shiozawa

In Shiozawa in January, humidity is 88%. With an average temperature of -3°C (28°F), this humidity feels like a biting chill that penetrates your clothes, making outdoor excursions uncomfortable and urging you to find shelter often.

January Average Humidity in Shiozawa

This chart illustrates the average monthly humidity levels in Shiozawa, 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 Shiozawa is approximately 88%, 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 Shiozawa

In Shiozawa 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 Shiozawa for better planning.

Maximum UV Index Levels in Shiozawa for January

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

Data source: Shiozawa 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 Shiozawa Compares to Other Months

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

This table compares monthly weather conditions in Shiozawa, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-3°C (28°F)	199 mm (7.8 inches)	88%	moderate
February Weather	-2°C (29°F)	185 mm (7.3 inches)	86%	moderate
March Weather	3°C (37°F)	174 mm (6.9 inches)	81%	very high
April Weather	8°C (46°F)	167 mm (6.6 inches)	78%	very high
May Weather	15°C (58°F)	181 mm (7.1 inches)	81%	very high
June Weather	18°C (64°F)	201 mm (7.9 inches)	88%	extreme
July Weather	22°C (73°F)	376 mm (14.8 inches)	92%	extreme
August Weather	24°C (75°F)	238 mm (9.4 inches)	92%	extreme
September Weather	19°C (67°F)	223 mm (8.8 inches)	89%	very high
October Weather	13°C (56°F)	256 mm (10.1 inches)	87%	high
November Weather	6°C (44°F)	145 mm (5.7 inches)	85%	moderate
December Weather	0°C (32°F)	226 mm (8.9 inches)	86%	moderate