January Weather in Saijo, Japan

Last updated: August 23, 2025

In January, the average temperature in Saijo, Japan hovers around 2°C (36°F), with minimums dipping to -13°C (10°F) and maximums peaking at 12°C (54°F). Expect 73 mm (2.9 in) of precipitation over approximately 12 days, and a cozy average humidity of 82%.

January Temperature in Saijo

In January in Saijo, the average temperature is 2°C (36°F). The maximum can reach 12°C (54°F), while the minimum can be as low as -13°C (10°F). It's advisable to pack warm clothing and be prepared for chilly conditions if you're planning to travel during this time.

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

The chart illustrates January temperature patterns in Saijo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saijo, January typically has an average temperature of 2°C (36°F), with highs reaching up to 12°C (54°F) and lows dropping to around -13°C (10°F).

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

January Precipitation in Saijo

In Saijo in January, the precipitation amount is 73 mm (2.9 in) occurring over a span of 12 days.

January Precipitation Trends in Saijo

The chart displays monthly precipitation patterns in Saijo, 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 Saijo, January typically receives around 73 mm (2.9 inches) of precipitation spread over approximately 12 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 Saijo

In Saijo in January humidity is 82%. With an average temperature of 2°C (36°F), this humidity feels like a damp chill that clings to your skin, making even brief outings feel uncomfortable and penetrating.

January Average Humidity in Saijo

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

In Saijo 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 Saijo for better planning.

Maximum UV Index Levels in Saijo for January

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

Data source: Saijo 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 Saijo Compares to Other Months

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

This table compares monthly weather conditions in Saijo, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	2°C (36°F)	73 mm (2.9 inches)	82%	moderate
February Weather	3°C (37°F)	85 mm (3.3 inches)	79%	moderate
March Weather	7°C (45°F)	129 mm (5.1 inches)	73%	very high
April Weather	12°C (53°F)	131 mm (5.2 inches)	74%	extreme
May Weather	17°C (63°F)	119 mm (4.7 inches)	84%	extreme
June Weather	20°C (68°F)	197 mm (7.7 inches)	86%	extreme
July Weather	24°C (76°F)	359 mm (14.1 inches)	92%	extreme
August Weather	26°C (78°F)	262 mm (10.3 inches)	92%	extreme
September Weather	21°C (70°F)	234 mm (9.2 inches)	87%	very high
October Weather	16°C (60°F)	171 mm (6.7 inches)	85%	high
November Weather	9°C (49°F)	44 mm (1.7 inches)	84%	moderate
December Weather	4°C (40°F)	89 mm (3.5 inches)	82%	moderate