January Weather in Yamaga, Japan

Last updated: August 23, 2025

In January, the average temperature in Yamaga, Japan hovers around 6°C (42°F). Expect minimums to dip as low as -5°C (24°F) and maximums reaching up to 17°C (63°F). Prepare for some rainy days, with precipitation around 54 mm (2.1 in) over 6 days, and a delightful average humidity of 75%.

January Temperature in Yamaga

In January in Yamaga, the average temperature is 6°C (42°F). Maximum temperatures can reach 17°C (63°F), while minimums can drop as low as -5°C (24°F). Pack accordingly for varied weather conditions to fully enjoy your trip!

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

The chart illustrates January temperature patterns in Yamaga, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Yamaga, January typically has an average temperature of 6°C (42°F), with highs reaching up to 17°C (63°F) and lows dropping to around -5°C (24°F).

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

January Precipitation in Yamaga

In Yamaga in January, the total precipitation amount is 54 mm (2.1 in) over the course of 6 days.

January Precipitation Trends in Yamaga

The chart displays monthly precipitation patterns in Yamaga, 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 Yamaga, January typically receives around 54 mm (2.1 inches) of precipitation spread over approximately 6 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 Yamaga

In Yamaga in January, humidity is 75%. With an average temperature of 6°C (42°F), this humidity feels like a damp chill that seeps into your bones, making outdoor exploration uncomfortable and necessitating the need for warm layers and waterproof gear while traveling.

January Average Humidity in Yamaga

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

In Yamaga 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 Yamaga for better planning.

Maximum UV Index Levels in Yamaga for January

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

Data source: Yamaga 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 Yamaga Compares to Other Months

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

This table compares monthly weather conditions in Yamaga, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	6°C (42°F)	54 mm (2.1 inches)	75%	moderate
February Weather	7°C (44°F)	96 mm (3.8 inches)	71%	high
March Weather	11°C (52°F)	131 mm (5.2 inches)	71%	very high
April Weather	15°C (59°F)	132 mm (5.2 inches)	78%	extreme
May Weather	19°C (67°F)	213 mm (8.4 inches)	84%	extreme
June Weather	23°C (73°F)	274 mm (10.8 inches)	86%	extreme
July Weather	26°C (79°F)	478 mm (18.8 inches)	92%	extreme
August Weather	28°C (82°F)	277 mm (10.9 inches)	91%	extreme
September Weather	24°C (76°F)	184 mm (7.2 inches)	84%	extreme
October Weather	19°C (66°F)	107 mm (4.2 inches)	83%	very high
November Weather	12°C (55°F)	60 mm (2.4 inches)	81%	high
December Weather	7°C (45°F)	71 mm (2.8 inches)	79%	moderate