January Weather in Asahimachi, Japan

Last updated: August 23, 2025

In January, the average temperature in Asahimachi, Japan hovers around -8°C (18°F). However, don’t be surprised if temperatures drop as low as -23°C (-9°F) or rise to a maximum of 4°C (39°F). Expect 67 mm (2.6 in) of precipitation spread across 18 days, contributing to an average humidity of 84%. Bundle up!

January Temperature in Asahimachi

In January in Asahimachi, the average temperature hovers around -8°C (18°F), with maximums peaking at 4°C (39°F) and minimums plunging as low as -23°C (-9°F). It's advisable to bundle up and prepare for chilly conditions if you're planning to travel during this time.

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

The chart illustrates January temperature patterns in Asahimachi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Asahimachi, January typically has an average temperature of -8°C (18°F), with highs reaching up to 4°C (39°F) and lows dropping to around -23°C (-9°F).

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

January Precipitation in Asahimachi

In Asahimachi in January, the total precipitation amount is 67 mm (2.6 in), spread over 18 days.

January Precipitation Trends in Asahimachi

The chart displays monthly precipitation patterns in Asahimachi, 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 Asahimachi, January typically receives around 67 mm (2.6 inches) of precipitation spread over approximately 18 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 Asahimachi

In Asahimachi in January humidity is 84%. With an average temperature of -8°C (18°F), this humidity feels like a biting chill that seeps into your bones, making outdoor exploration challenging and requiring extra layers for comfort.

January Average Humidity in Asahimachi

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

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

Maximum UV Index Levels in Asahimachi for January

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

Data source: Asahimachi 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 Asahimachi Compares to Other Months

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

This table compares monthly weather conditions in Asahimachi, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-8°C (18°F)	67 mm (2.6 inches)	84%	low
February Weather	-6°C (21°F)	87 mm (3.4 inches)	83%	moderate
March Weather	-1°C (31°F)	93 mm (3.7 inches)	81%	high
April Weather	5°C (42°F)	80 mm (3.2 inches)	81%	high
May Weather	12°C (54°F)	113 mm (4.5 inches)	86%	very high
June Weather	15°C (60°F)	118 mm (4.7 inches)	87%	very high
July Weather	20°C (69°F)	147 mm (5.8 inches)	93%	very high
August Weather	20°C (68°F)	208 mm (8.2 inches)	95%	very high
September Weather	16°C (61°F)	122 mm (4.8 inches)	88%	very high
October Weather	10°C (50°F)	169 mm (6.7 inches)	83%	moderate
November Weather	3°C (37°F)	168 mm (6.6 inches)	79%	moderate
December Weather	-5°C (24°F)	129 mm (5.1 inches)	80%	low