January Weather in Shimizu, Japan

Last updated: August 23, 2025

In January, the average temperature in Shimizu, Japan hovers around a chilly -9°C (17°F). Expect lows of -24°C (-10°F) and occasional highs reaching 3°C (38°F). Additionally, precipitation totals around 50 mm (2.0 in) over approximately 7 days, while the average humidity remains quite high at 84%. Stay warm and prepared for this wintry climate!

January Temperature in Shimizu

In January in Shimizu, the average temperature is -9°C (17°F), with a maximum that can reach 3°C (38°F) and a minimum that can drop as low as -24°C (-10°F). Be prepared for chilly weather and dress warmly if you're planning to travel during this time.

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

The chart illustrates January temperature patterns in Shimizu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Shimizu, January typically has an average temperature of -9°C (17°F), with highs reaching up to 3°C (38°F) and lows dropping to around -24°C (-10°F).

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

January Precipitation in Shimizu

In Shimizu in January, the precipitation amount is 50 mm (2.0 in) over a span of 7 days.

January Precipitation Trends in Shimizu

The chart displays monthly precipitation patterns in Shimizu, 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 Shimizu, January typically receives around 50 mm (2.0 inches) of precipitation spread over approximately 7 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 Shimizu

In Shimizu in January, humidity is 84%. With an average temperature of -9°C (17°F), this humidity feels like a chilling embrace that clings to your skin, making the cold air penetrate even deeper and creating an oddly damp feeling that can be uncomfortable for traveling.

January Average Humidity in Shimizu

This chart illustrates the average monthly humidity levels in Shimizu, 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 Shimizu is approximately 84%, 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 Shimizu

In Shimizu in January, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Shimizu, you can visit Hourly UV Index in Shimizu.

Maximum UV Index Levels in Shimizu for January

The chart shows the monthly maximum UV Index (UVI) for Shimizu 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 Shimizu typically reaches 2, which falls under the low exposure category.

Data source: Shimizu 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 Shimizu Compares to Other Months

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

This table compares monthly weather conditions in Shimizu, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-9°C (17°F)	50 mm (2.0 inches)	84%	low
February Weather	-7°C (19°F)	54 mm (2.1 inches)	83%	moderate
March Weather	-1°C (31°F)	89 mm (3.5 inches)	83%	high
April Weather	5°C (42°F)	89 mm (3.5 inches)	83%	very high
May Weather	12°C (53°F)	86 mm (3.4 inches)	86%	very high
June Weather	15°C (59°F)	109 mm (4.3 inches)	88%	very high
July Weather	19°C (66°F)	98 mm (3.8 inches)	93%	very high
August Weather	19°C (66°F)	171 mm (6.7 inches)	96%	very high
September Weather	16°C (61°F)	127 mm (5.0 inches)	89%	very high
October Weather	10°C (49°F)	152 mm (6.0 inches)	83%	high
November Weather	3°C (37°F)	89 mm (3.5 inches)	80%	moderate
December Weather	-5°C (24°F)	58 mm (2.3 inches)	79%	low