January Weather in Sakai, Japan

Last updated: August 23, 2025

In January, the average temperature in Sakai, Japan hovers around 4°C (40°F), offering a crisp atmosphere perfect for cozy activities. Expect temperatures to range from a chilly -7°C (20°F) at their lowest to a mild 18°C (65°F) at their peak. During this month, you can anticipate 39 mm (1.5 in) of precipitation spread over 4 days, contributing to the area's lush greenery. With an average humidity level of 76%, the air feels fresh and invigorating.

January Temperature in Sakai

In January in Sakai, the average temperature is 4°C (40°F). Maximum temperatures can reach 18°C (65°F), while minimums can drop as low as -7°C (20°F). It's advisable to pack layers for your trip to stay comfortable during the varied temperatures.

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

The chart illustrates January temperature patterns in Sakai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sakai, January typically has an average temperature of 4°C (40°F), with highs reaching up to 18°C (65°F) and lows dropping to around -7°C (20°F).

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

January Precipitation in Sakai

In Sakai in January, the precipitation amount is 39 mm (1.5 in) spread over a period of 4 days.

January Precipitation Trends in Sakai

The chart displays monthly precipitation patterns in Sakai, 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 Sakai, January typically receives around 39 mm (1.5 inches) of precipitation spread over approximately 4 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 Sakai

In Sakai in January humidity is 76%. With an average temperature of 4°C (40°F), this humidity feels like a chilly embrace, making travel feel damp and slightly clammy, as the cool air clings to your skin, requiring extra layers to stay comfortable while experiencing the sights.

January Average Humidity in Sakai

This chart illustrates the average monthly humidity levels in Sakai, 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 Sakai is approximately 76%, 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 Sakai

In Sakai in January, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Sakai, you can check the information here.

Maximum UV Index Levels in Sakai for January

The chart shows the monthly maximum UV Index (UVI) for Sakai 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 Sakai typically reaches 3, which falls under the moderate exposure category.

Data source: Sakai 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 Sakai Compares to Other Months

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

This table compares monthly weather conditions in Sakai, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	4°C (40°F)	39 mm (1.5 inches)	76%	moderate
February Weather	6°C (43°F)	38 mm (1.5 inches)	74%	moderate
March Weather	10°C (51°F)	122 mm (4.8 inches)	70%	very high
April Weather	14°C (58°F)	111 mm (4.4 inches)	74%	very high
May Weather	20°C (68°F)	111 mm (4.4 inches)	81%	very high
June Weather	23°C (73°F)	134 mm (5.3 inches)	88%	very high
July Weather	26°C (80°F)	225 mm (8.8 inches)	93%	extreme
August Weather	28°C (83°F)	112 mm (4.4 inches)	90%	very high
September Weather	24°C (75°F)	167 mm (6.6 inches)	86%	very high
October Weather	18°C (65°F)	249 mm (9.8 inches)	83%	high
November Weather	13°C (55°F)	63 mm (2.5 inches)	80%	moderate
December Weather	7°C (44°F)	47 mm (1.8 inches)	78%	moderate