January Weather in Uki, Japan

Last updated: August 23, 2025

In Uki, Japan, the average temperature in January hovers around 5°C (41°F). Expect a mix of conditions, with minimums dipping as low as -6°C (22°F) and maximums reaching up to 18°C (64°F). Over the course of the month, anticipate about 64 mm (2.5 in) of precipitation spread across 8 days, and feel the humidity settle at a comfortable 75%.

January Temperature in Uki

In January in Uki, the average temperature is 5°C (41°F), with maximums reaching 18°C (64°F) and minimums dropping as low as -6°C (22°F). Be prepared for a range of temperatures and pack accordingly for your travels.

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

The chart illustrates January temperature patterns in Uki, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Uki, January typically has an average temperature of 5°C (41°F), with highs reaching up to 18°C (64°F) and lows dropping to around -6°C (22°F).

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

January Precipitation in Uki

In Uki in January, the precipitation amount is 64 mm (2.5 in) over the course of 8 days.

January Precipitation Trends in Uki

The chart displays monthly precipitation patterns in Uki, 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 Uki, January typically receives around 64 mm (2.5 inches) of precipitation spread over approximately 8 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 Uki

In Uki in January, humidity is 75%. With an average temperature of 5°C (41°F), this humidity feels like a damp chill that seeps into your bones, making outdoor exploration less inviting and requiring extra layers for comfort while traveling.

January Average Humidity in Uki

This chart illustrates the average monthly humidity levels in Uki, 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 Uki is approximately 75%, 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 Uki

In Uki in January, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Uki.

Maximum UV Index Levels in Uki for January

The chart shows the monthly maximum UV Index (UVI) for Uki 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 Uki typically reaches 5, which falls under the moderate exposure category.

Data source: Uki 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 Uki Compares to Other Months

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

This table compares monthly weather conditions in Uki, 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 (41°F)	64 mm (2.5 inches)	75%	moderate
February Weather	6°C (43°F)	112 mm (4.4 inches)	71%	high
March Weather	10°C (51°F)	157 mm (6.2 inches)	71%	very high
April Weather	14°C (58°F)	150 mm (5.9 inches)	78%	very high
May Weather	19°C (66°F)	229 mm (9.0 inches)	84%	extreme
June Weather	22°C (72°F)	339 mm (13.4 inches)	86%	extreme
July Weather	25°C (78°F)	444 mm (17.5 inches)	92%	extreme
August Weather	26°C (80°F)	238 mm (9.4 inches)	91%	extreme
September Weather	23°C (74°F)	209 mm (8.2 inches)	84%	extreme
October Weather	18°C (65°F)	140 mm (5.5 inches)	83%	very high
November Weather	12°C (54°F)	85 mm (3.4 inches)	81%	high
December Weather	7°C (44°F)	87 mm (3.4 inches)	79%	moderate