January Weather in Ashoro, Japan

Last updated: August 23, 2025

In January, the average temperature in Ashoro, Japan hovers around -9°C (17°F). Expect chilly days, with minimums plunging to -23°C (-8°F) and highs reaching up to 4°C (40°F). Precipitation during this month averages 44 mm (1.7 in) over about 7 days, contributing to an overall humidity level of 84%. Stay warm and prepared for the brisk weather!

January Temperature in Ashoro

In January in Ashoro, the average temperature is -9°C (17°F). The maximum can reach 4°C (40°F), while the minimum can drop to as low as -23°C (-8°F). Travelers should be prepared for very cold conditions and dress warmly to fully enjoy their stay.

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

The chart illustrates January temperature patterns in Ashoro, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ashoro, January typically has an average temperature of -9°C (17°F), with highs reaching up to 4°C (40°F) and lows dropping to around -23°C (-8°F).

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

January Precipitation in Ashoro

In Ashoro in January, the precipitation amount is 44 mm (1.7 in) spread over a duration of 7 days.

January Precipitation Trends in Ashoro

The chart displays monthly precipitation patterns in Ashoro, 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 Ashoro, January typically receives around 44 mm (1.7 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 Ashoro

In Ashoro in January, humidity is 84%. With an average temperature of -9°C (17°F), this humidity feels like a chilling embrace that clings to your skin, making the cold air penetrate even deeper and creating an oddly damp feeling that can be uncomfortable for traveling.

January Average Humidity in Ashoro

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

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

Maximum UV Index Levels in Ashoro for January

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

Data source: Ashoro 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 Ashoro Compares to Other Months

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

This table compares monthly weather conditions in Ashoro, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-9°C (17°F)	44 mm (1.7 inches)	84%	low
February Weather	-8°C (18°F)	46 mm (1.8 inches)	83%	moderate
March Weather	-1°C (30°F)	98 mm (3.8 inches)	83%	moderate
April Weather	4°C (40°F)	84 mm (3.3 inches)	83%	very high
May Weather	11°C (52°F)	96 mm (3.8 inches)	86%	very high
June Weather	14°C (57°F)	114 mm (4.5 inches)	88%	very high
July Weather	18°C (65°F)	90 mm (3.5 inches)	93%	very high
August Weather	18°C (65°F)	155 mm (6.1 inches)	96%	very high
September Weather	15°C (59°F)	114 mm (4.5 inches)	89%	very high
October Weather	9°C (49°F)	169 mm (6.6 inches)	83%	moderate
November Weather	2°C (36°F)	92 mm (3.6 inches)	80%	moderate
December Weather	-5°C (23°F)	53 mm (2.1 inches)	79%	low