January Weather in Susaki, Japan

Last updated: August 23, 2025

In Susaki, Japan, the average temperature in January settles around 5°C (41°F). Expect chilly moments, with minimums dropping to -5°C (23°F) and maximums reaching a mild 17°C (63°F). This month brings 68 mm (2.7 in) of precipitation over 5 days, coupled with an average humidity of 74%. Prepare accordingly for a damp and cool experience!

January Temperature in Susaki

In January, in Susaki, the average temperature is 5°C (41°F). Maximums can reach 17°C (63°F), while minimums can drop to as low as -5°C (23°F). Pack for a wide range of temperatures and enjoy the beauty of Susaki during this month!

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

The chart illustrates January temperature patterns in Susaki, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Susaki, January typically has an average temperature of 5°C (41°F), with highs reaching up to 17°C (63°F) and lows dropping to around -5°C (23°F).

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

January Precipitation in Susaki

In Susaki in January, the total precipitation amount is 68 mm (2.7 in) over the course of 5 days.

January Precipitation Trends in Susaki

The chart displays monthly precipitation patterns in Susaki, 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 Susaki, January typically receives around 68 mm (2.7 inches) of precipitation spread over approximately 5 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 Susaki

In Susaki in January humidity is 74%. With an average temperature of 5°C (41°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and prompting travelers to dress in layers for warmth and comfort.

January Average Humidity in Susaki

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

In Susaki 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 Susaki for better planning.

Maximum UV Index Levels in Susaki for January

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

Data source: Susaki 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 Susaki Compares to Other Months

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

This table compares monthly weather conditions in Susaki, 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)	68 mm (2.7 inches)	74%	moderate
February Weather	6°C (43°F)	102 mm (4.0 inches)	70%	high
March Weather	10°C (50°F)	185 mm (7.3 inches)	70%	very high
April Weather	14°C (57°F)	200 mm (7.9 inches)	76%	very high
May Weather	18°C (65°F)	233 mm (9.2 inches)	82%	extreme
June Weather	21°C (71°F)	321 mm (12.7 inches)	86%	extreme
July Weather	25°C (78°F)	581 mm (22.9 inches)	91%	extreme
August Weather	27°C (80°F)	348 mm (13.7 inches)	88%	extreme
September Weather	23°C (74°F)	368 mm (14.5 inches)	85%	very high
October Weather	18°C (65°F)	343 mm (13.5 inches)	82%	very high
November Weather	12°C (54°F)	79 mm (3.1 inches)	79%	high
December Weather	7°C (45°F)	77 mm (3.0 inches)	77%	moderate