January Weather in Ushiku, Japan

Last updated: August 23, 2025

In January, the average temperature in Ushiku, Japan hovers around 5°C (40°F), with a chilly minimum of -6°C (22°F) and a pleasant maximum of 17°C (63°F). Expect about 47 mm (1.8 in) of precipitation over 5 days, accompanied by an average humidity level of 70%.

January Temperature in Ushiku

In January in Ushiku, the average temperature is 5°C (40°F). Maximum temperatures can reach 17°C (63°F), while the minimum can drop as low as -6°C (22°F). Pack accordingly for your trip, as you'll experience a mix of cool days and chilly nights.

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

The chart illustrates January temperature patterns in Ushiku, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ushiku, January typically has an average temperature of 5°C (40°F), with highs reaching up to 17°C (63°F) and lows dropping to around -6°C (22°F).

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

January Precipitation in Ushiku

In Ushiku in January, the total precipitation amount is 47 mm (1.8 in) over the course of 5 days.

January Precipitation Trends in Ushiku

The chart displays monthly precipitation patterns in Ushiku, 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 Ushiku, January typically receives around 47 mm (1.8 inches) of precipitation spread over approximately 5 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 Ushiku

In Ushiku in January, humidity is 70%. With an average temperature of 5°C (40°F), this humidity feels like a damp chill that penetrates your layers, making outdoor activities less enjoyable and prompting you to seek cozy indoor spaces to warm up.

January Average Humidity in Ushiku

This chart illustrates the average monthly humidity levels in Ushiku, 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 Ushiku is approximately 70%, 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 Ushiku

In Ushiku in January, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Ushiku, you can check the information here.

Maximum UV Index Levels in Ushiku for January

The chart shows the monthly maximum UV Index (UVI) for Ushiku 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 Ushiku typically reaches 3, which falls under the moderate exposure category.

Data source: Ushiku 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 Ushiku Compares to Other Months

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

This table compares monthly weather conditions in Ushiku, 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 (40°F)	47 mm (1.8 inches)	70%	moderate
February Weather	6°C (43°F)	42 mm (1.7 inches)	69%	moderate
March Weather	10°C (51°F)	128 mm (5.0 inches)	68%	high
April Weather	14°C (58°F)	112 mm (4.4 inches)	73%	very high
May Weather	19°C (67°F)	125 mm (4.9 inches)	81%	very high
June Weather	22°C (72°F)	144 mm (5.7 inches)	88%	extreme
July Weather	26°C (79°F)	218 mm (8.6 inches)	94%	extreme
August Weather	28°C (82°F)	108 mm (4.3 inches)	87%	very high
September Weather	24°C (75°F)	171 mm (6.7 inches)	83%	very high
October Weather	18°C (65°F)	238 mm (9.4 inches)	78%	high
November Weather	13°C (56°F)	86 mm (3.4 inches)	74%	moderate
December Weather	7°C (45°F)	62 mm (2.4 inches)	72%	moderate