January Weather in Sakaki, Japan

Last updated: August 23, 2025

In January, the average temperature in Sakaki, Japan hovers around -1°C (31°F), with minimums plummeting to -12°C (12°F) and maximums reaching up to 11°C (52°F). Expect 92 mm (3.6 in) of precipitation spread across 19 days, resulting in an average humidity of 88%. Bundle up and prepare for a chilly, damp month!

January Temperature in Sakaki

In January in Sakaki, the average temperature is -1°C (31°F). The maximum can reach 11°C (52°F) and the minimum can be as low as -12°C (12°F). Be sure to pack warm clothing if you plan to visit during this time, as the temperatures can vary significantly.

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

The chart illustrates January temperature patterns in Sakaki, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sakaki, January typically has an average temperature of -1°C (31°F), with highs reaching up to 11°C (52°F) and lows dropping to around -12°C (12°F).

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

January Precipitation in Sakaki

In Sakaki in January, the precipitation amount is 92 mm (3.6 in) occurring over the course of 19 days.

January Precipitation Trends in Sakaki

The chart displays monthly precipitation patterns in Sakaki, 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 Sakaki, January typically receives around 92 mm (3.6 inches) of precipitation spread over approximately 19 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 Sakaki

In Sakaki in January, humidity is 88%. With an average temperature of -1°C (31°F), this humidity feels like a biting cold that penetrates your clothing, making outdoor exploration challenging and the air clingy, adding an extra chill that can make you feel even colder than the temperature suggests.

January Average Humidity in Sakaki

This chart illustrates the average monthly humidity levels in Sakaki, 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 Sakaki is approximately 88%, 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 Sakaki

In Sakaki 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 Sakaki for better planning.

Maximum UV Index Levels in Sakaki for January

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

Data source: Sakaki 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 Sakaki Compares to Other Months

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

This table compares monthly weather conditions in Sakaki, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-1°C (31°F)	92 mm (3.6 inches)	88%	moderate
February Weather	0°C (33°F)	89 mm (3.5 inches)	86%	high
March Weather	5°C (40°F)	118 mm (4.6 inches)	81%	very high
April Weather	9°C (49°F)	124 mm (4.9 inches)	78%	very high
May Weather	16°C (60°F)	145 mm (5.7 inches)	81%	extreme
June Weather	19°C (66°F)	151 mm (6.0 inches)	88%	extreme
July Weather	23°C (73°F)	287 mm (11.3 inches)	92%	extreme
August Weather	24°C (76°F)	162 mm (6.4 inches)	92%	extreme
September Weather	19°C (67°F)	172 mm (6.8 inches)	89%	very high
October Weather	13°C (56°F)	213 mm (8.4 inches)	87%	high
November Weather	7°C (45°F)	67 mm (2.6 inches)	85%	moderate
December Weather	2°C (36°F)	99 mm (3.9 inches)	86%	moderate