January Weather in Soja, Japan

Last updated: August 23, 2025

In January, the average temperature in Soja, Japan hovers around 5°C (41°F), with fluctuations ranging from a chilly -7°C (19°F) to a mild 15°C (60°F). Expect some liquid sunshine, as precipitation typically totals 35 mm (1.4 in) over about 5 days. Keep in mind that the air feels quite moist, with an average humidity of 82%.

January Temperature in Soja

In January in Soja, the average temperature is 5°C (41°F). Maximums can reach 15°C (60°F), while minimums can drop as low as -7°C (19°F). Be prepared for chilly weather, but enjoy a mix of cool days and the occasional warmer spell during your travels.

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

The chart illustrates January temperature patterns in Soja, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Soja, January typically has an average temperature of 5°C (41°F), with highs reaching up to 15°C (60°F) and lows dropping to around -7°C (19°F).

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

January Precipitation in Soja

In Soja in January, the precipitation amount is 35 mm (1.4 in) over a span of 5 days.

January Precipitation Trends in Soja

The chart displays monthly precipitation patterns in Soja, 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 Soja, January typically receives around 35 mm (1.4 inches) of precipitation spread over approximately 5 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 Soja

In Soja in January, humidity is 82%. With an average temperature of 5°C (41°F), this humidity feels like a chilly, damp blanket wrapping around you, making outdoor activities less enjoyable and making it essential to dress in layers to stay warm while navigating the wet conditions.

January Average Humidity in Soja

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

In Soja 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 Soja for better planning.

Maximum UV Index Levels in Soja for January

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

Data source: Soja 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 Soja Compares to Other Months

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

This table compares monthly weather conditions in Soja, 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)	35 mm (1.4 inches)	82%	moderate
February Weather	5°C (42°F)	49 mm (1.9 inches)	79%	high
March Weather	10°C (49°F)	98 mm (3.9 inches)	73%	very high
April Weather	14°C (58°F)	128 mm (5.0 inches)	74%	very high
May Weather	19°C (67°F)	115 mm (4.5 inches)	84%	extreme
June Weather	23°C (73°F)	162 mm (6.4 inches)	86%	extreme
July Weather	27°C (80°F)	313 mm (12.3 inches)	92%	extreme
August Weather	28°C (83°F)	199 mm (7.8 inches)	92%	extreme
September Weather	24°C (75°F)	217 mm (8.5 inches)	87%	very high
October Weather	18°C (65°F)	174 mm (6.8 inches)	85%	high
November Weather	12°C (53°F)	32 mm (1.2 inches)	84%	moderate
December Weather	7°C (44°F)	47 mm (1.9 inches)	82%	moderate