January Weather in Asago, Japan

Last updated: August 23, 2025

In January, the average temperature in Asago, Japan hovers around 2°C (36°F). Expect a chillier side with minimum temperatures plummeting to -12°C (11°F), while the mercury can rise to a maximum of 14°C (58°F). This month also brings 68 mm (2.7 in) of precipitation over approximately 13 days, contributing to a relatively high average humidity of 82%. Be prepared for a brisk and damp experience!

January Temperature in Asago

In January in Asago, the average temperature is 2°C (36°F). Maximums can reach 14°C (58°F), while minimums can drop to as low as -12°C (11°F). Be prepared for chilly conditions, and dress in layers to enjoy your visit to Asago this month!

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

The chart illustrates January temperature patterns in Asago, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Asago, January typically has an average temperature of 2°C (36°F), with highs reaching up to 14°C (58°F) and lows dropping to around -12°C (11°F).

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

January Precipitation in Asago

In Asago in January, the precipitation amount is 68 mm (2.7 in) spread over 13 days.

January Precipitation Trends in Asago

The chart displays monthly precipitation patterns in Asago, 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 Asago, January typically receives around 68 mm (2.7 inches) of precipitation spread over approximately 13 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 Asago

In Asago in January humidity is 82%. With an average temperature of 2°C (36°F), this humidity feels like a damp chill that clings to your skin, making even brief outings feel uncomfortable and penetrating.

January Average Humidity in Asago

This chart illustrates the average monthly humidity levels in Asago, 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 Asago is approximately 82%, 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 Asago

In Asago 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 Asago for better planning.

Maximum UV Index Levels in Asago for January

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

Data source: Asago 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 Asago Compares to Other Months

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

This table compares monthly weather conditions in Asago, 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)	68 mm (2.7 inches)	82%	moderate
February Weather	3°C (38°F)	72 mm (2.8 inches)	79%	high
March Weather	7°C (46°F)	134 mm (5.3 inches)	73%	very high
April Weather	12°C (54°F)	142 mm (5.6 inches)	74%	very high
May Weather	17°C (63°F)	148 mm (5.8 inches)	84%	extreme
June Weather	21°C (69°F)	219 mm (8.6 inches)	86%	extreme
July Weather	25°C (77°F)	376 mm (14.8 inches)	92%	extreme
August Weather	26°C (80°F)	310 mm (12.2 inches)	92%	extreme
September Weather	22°C (72°F)	279 mm (11.0 inches)	87%	very high
October Weather	16°C (62°F)	236 mm (9.3 inches)	85%	high
November Weather	10°C (50°F)	58 mm (2.3 inches)	84%	moderate
December Weather	5°C (41°F)	89 mm (3.5 inches)	82%	moderate