January Weather in Aki, Japan

Last updated: August 23, 2025

In January, the average temperature in Aki, Japan hovers around 7°C (45°F), offering a mild yet crisp climate. Expect minimum temperatures plunging to -3°C (28°F), while highs can reach up to 17°C (63°F). During this period, anticipate 71 mm (2.8 in) of precipitation spread across 4 days and an average humidity level of 74%, creating a refreshing atmosphere.

January Temperature in Aki

In January in Aki, the average temperature is 7°C (45°F). The maximum can reach 17°C (63°F), while the minimum can go as low as -3°C (28°F). Be prepared for a mix of chilly and mild weather during your travels.

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

The chart illustrates January temperature patterns in Aki, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Aki, January typically has an average temperature of 7°C (45°F), with highs reaching up to 17°C (63°F) and lows dropping to around -3°C (28°F).

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

January Precipitation in Aki

In Aki in January, the precipitation amount is 71 mm (2.8 in) over the course of 4 days.

January Precipitation Trends in Aki

The chart displays monthly precipitation patterns in Aki, 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 Aki, January typically receives around 71 mm (2.8 inches) of precipitation spread over approximately 4 days.

Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

January Humidity in Aki

In Aki in January, humidity is 74%. With an average temperature of 7°C (45°F), this humidity feels like a chilly blanket that clings to your skin, making outdoor activities feel more intense and requiring extra layers to stay comfortable while exploring.

January Average Humidity in Aki

This chart illustrates the average monthly humidity levels in Aki, 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 Aki is approximately 74%, 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 Aki

In Aki 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 Aki for better planning.

Maximum UV Index Levels in Aki for January

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

Data source: Aki 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 Aki Compares to Other Months

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

This table compares monthly weather conditions in Aki, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	7°C (45°F)	71 mm (2.8 inches)	74%	moderate
February Weather	7°C (45°F)	98 mm (3.8 inches)	70%	high
March Weather	11°C (52°F)	169 mm (6.7 inches)	70%	very high
April Weather	15°C (59°F)	197 mm (7.8 inches)	76%	extreme
May Weather	19°C (66°F)	242 mm (9.5 inches)	82%	extreme
June Weather	22°C (71°F)	318 mm (12.5 inches)	86%	extreme
July Weather	25°C (77°F)	545 mm (21.5 inches)	91%	extreme
August Weather	27°C (80°F)	349 mm (13.8 inches)	88%	extreme
September Weather	24°C (76°F)	315 mm (12.4 inches)	85%	very high
October Weather	20°C (67°F)	296 mm (11.6 inches)	82%	very high
November Weather	14°C (58°F)	72 mm (2.8 inches)	79%	high
December Weather	9°C (49°F)	74 mm (2.9 inches)	77%	moderate