January Weather in Honmachi, Japan

Last updated: August 23, 2025

In Honmachi, Japan, the average temperature for January hovers around -4°C (24°F), with a minimum dipping to -11°C (12°F) and a maximum peaking at 5°C (41°F). Expect about 77 mm (3.0 in) of precipitation spread over 16 days, contributing to an average humidity of a chilly 84%.

January Temperature in Honmachi

In January in Honmachi, the average temperature is -4°C (24°F). Maximum temperatures can reach 5°C (41°F), while minima can drop as low as -11°C (12°F). Be prepared for chilly weather and pack warm clothing if you plan to visit during this time.

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

The chart illustrates January temperature patterns in Honmachi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Honmachi, January typically has an average temperature of -4°C (24°F), with highs reaching up to 5°C (41°F) and lows dropping to around -11°C (12°F).

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

January Precipitation in Honmachi

In Honmachi in January, the precipitation amount is 77 mm (3.0 in) during 16 days, indicating a moderately wet climate for that period.

January Precipitation Trends in Honmachi

The chart displays monthly precipitation patterns in Honmachi, 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 Honmachi, January typically receives around 77 mm (3.0 inches) of precipitation spread over approximately 16 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 Honmachi

In Honmachi in January humidity is 84%. With an average temperature of -4°C (24°F), this humidity feels like an uninviting chill that seeps into your bones, making outdoor activities uncomfortable and travel quite challenging.

January Average Humidity in Honmachi

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

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

Maximum UV Index Levels in Honmachi for January

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

Data source: Honmachi 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 Honmachi Compares to Other Months

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

This table compares monthly weather conditions in Honmachi, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-4°C (24°F)	77 mm (3.0 inches)	84%	low
February Weather	-7°C (20°F)	68 mm (2.7 inches)	83%	moderate
March Weather	-2°C (28°F)	93 mm (3.7 inches)	83%	moderate
April Weather	2°C (36°F)	72 mm (2.8 inches)	83%	high
May Weather	8°C (46°F)	107 mm (4.2 inches)	86%	very high
June Weather	12°C (53°F)	100 mm (4.0 inches)	88%	very high
July Weather	16°C (62°F)	70 mm (2.8 inches)	93%	very high
August Weather	18°C (65°F)	114 mm (4.5 inches)	96%	very high
September Weather	16°C (62°F)	95 mm (3.8 inches)	89%	very high
October Weather	12°C (53°F)	187 mm (7.3 inches)	83%	moderate
November Weather	5°C (42°F)	139 mm (5.5 inches)	80%	moderate
December Weather	-1°C (30°F)	119 mm (4.7 inches)	79%	low