January Weather in Shiranuka, Japan

Last updated: August 23, 2025

In January, the average temperature in Shiranuka, Japan hovers around -5°C (23°F), with extremes ranging from a chilling -16°C (4°F) to a mild 6°C (43°F). Expect about 46 mm (1.8 in) of precipitation over 6 days, and prepare for a high average humidity of 84%. Stay warm and dry!

January Temperature in Shiranuka

In January in Shiranuka, the average temperature is -5°C (23°F), with maximums reaching up to 6°C (43°F) and minimums dropping as low as -16°C (4°F). Travelers should prepare for cold weather and dress in layers to stay warm during their visit.

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

The chart illustrates January temperature patterns in Shiranuka, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Shiranuka, January typically has an average temperature of -5°C (23°F), with highs reaching up to 6°C (43°F) and lows dropping to around -16°C (4°F).

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

January Precipitation in Shiranuka

In Shiranuka in January, the precipitation amount is 46 mm (1.8 in) over a span of 6 days.

January Precipitation Trends in Shiranuka

The chart displays monthly precipitation patterns in Shiranuka, 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 Shiranuka, January typically receives around 46 mm (1.8 inches) of precipitation spread over approximately 6 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 Shiranuka

In Shiranuka in January, humidity is 84%. With an average temperature of -5°C (23°F), this humidity feels like an icy blanket wrapping around you, making the cold air bite even deeper and turning travel into a brisk, challenging adventure where each breath comes with a frosty reminder of the chill.

January Average Humidity in Shiranuka

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

In Shiranuka 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 Shiranuka, you can visit Hourly UV Index in Shiranuka.

Maximum UV Index Levels in Shiranuka for January

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

Data source: Shiranuka 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 Shiranuka Compares to Other Months

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

This table compares monthly weather conditions in Shiranuka, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-5°C (23°F)	46 mm (1.8 inches)	84%	low
February Weather	-5°C (23°F)	42 mm (1.6 inches)	83%	moderate
March Weather	0°C (32°F)	99 mm (3.9 inches)	83%	moderate
April Weather	4°C (40°F)	84 mm (3.3 inches)	83%	very high
May Weather	9°C (49°F)	104 mm (4.1 inches)	86%	very high
June Weather	12°C (54°F)	112 mm (4.4 inches)	88%	very high
July Weather	16°C (62°F)	109 mm (4.3 inches)	93%	very high
August Weather	18°C (65°F)	166 mm (6.5 inches)	96%	very high
September Weather	16°C (62°F)	124 mm (4.9 inches)	89%	very high
October Weather	11°C (53°F)	196 mm (7.7 inches)	83%	moderate
November Weather	5°C (42°F)	84 mm (3.3 inches)	80%	moderate
December Weather	-1°C (30°F)	54 mm (2.1 inches)	79%	low