January Weather in Shintoku, Japan

Last updated: August 23, 2025

In Shintoku, Japan, the average temperature for January hovers around -9°C (16°F). While chilly days can drop to a brisk -23°C (-10°F), the mercury can occasionally rise to a maximum of 3°C (37°F). This month experiences 52 mm (2.0 in) of precipitation spread over 9 days. Combined with an average humidity of 84%, it's a time to bundle up and prepare for the winter weather!

January Temperature in Shintoku

In January in Shintoku, the average temperature is -9°C (16°F), with maximums reaching 3°C (37°F) and minimums dropping as low as -23°C (-10°F). Be prepared for cold conditions and dress warmly if you plan to travel during this time.

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

The chart illustrates January temperature patterns in Shintoku, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Shintoku, January typically has an average temperature of -9°C (16°F), with highs reaching up to 3°C (37°F) and lows dropping to around -23°C (-10°F).

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

January Precipitation in Shintoku

In Shintoku in January, the precipitation amount is 52 mm (2.0 in) over a span of 9 days.

January Precipitation Trends in Shintoku

The chart displays monthly precipitation patterns in Shintoku, 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 Shintoku, January typically receives around 52 mm (2.0 inches) of precipitation spread over approximately 9 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 Shintoku

In Shintoku in January humidity is 84%. With an average temperature of -9°C (16°F), this humidity feels like an uncomfortable chill that cuts through layers of clothing, making travel quite difficult as it increases the sensation of cold and dampness.

January Average Humidity in Shintoku

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

In Shintoku 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 Shintoku, you can visit Hourly UV Index in Shintoku.

Maximum UV Index Levels in Shintoku for January

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

Data source: Shintoku 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 Shintoku Compares to Other Months

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

This table compares monthly weather conditions in Shintoku, 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 (16°F)	52 mm (2.0 inches)	84%	low
February Weather	-8°C (18°F)	62 mm (2.5 inches)	83%	moderate
March Weather	-2°C (29°F)	96 mm (3.8 inches)	83%	high
April Weather	4°C (40°F)	96 mm (3.8 inches)	83%	very high
May Weather	11°C (52°F)	95 mm (3.7 inches)	86%	very high
June Weather	14°C (58°F)	117 mm (4.6 inches)	88%	very high
July Weather	19°C (66°F)	104 mm (4.1 inches)	93%	very high
August Weather	18°C (65°F)	177 mm (7.0 inches)	96%	very high
September Weather	15°C (59°F)	129 mm (5.1 inches)	89%	very high
October Weather	9°C (48°F)	156 mm (6.2 inches)	83%	high
November Weather	2°C (35°F)	105 mm (4.1 inches)	80%	moderate
December Weather	-6°C (22°F)	70 mm (2.8 inches)	79%	low