January Weather in Shinjo, Japan

Last updated: August 23, 2025

In January, the average temperature in Shinjo, Japan is a chilly -1°C (31°F), with minimums plunging as low as -14°C (8°F) and highs reaching up to 8°C (46°F). Expect 138 mm (5.5 in) of precipitation over approximately 21 days, contributing to an average humidity level of 80%. Stay warm and dry!

January Temperature in Shinjo

In January in Shinjo, the average temperature is -1°C (31°F), with maximums reaching 8°C (46°F) and minimums plummeting to -14°C (8°F). Travelers should be prepared for cold weather and pack accordingly to fully enjoy their visit.

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

The chart illustrates January temperature patterns in Shinjo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Shinjo, January typically has an average temperature of -1°C (31°F), with highs reaching up to 8°C (46°F) and lows dropping to around -14°C (8°F).

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

January Precipitation in Shinjo

In Shinjo in January, the precipitation amount is 138 mm (5.5 in) spread over 21 days.

January Precipitation Trends in Shinjo

The chart displays monthly precipitation patterns in Shinjo, 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 Shinjo, January typically receives around 138 mm (5.5 inches) of precipitation spread over approximately 21 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 Shinjo

In Shinjo in January humidity is 80%. With average temperature -1°C (31°F), this humidity feels like a biting chill that seeps into your bones, making every step outdoors a brisk reminder of the cold.

January Average Humidity in Shinjo

This chart illustrates the average monthly humidity levels in Shinjo, 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 Shinjo is approximately 80%, 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 Shinjo

In Shinjo 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 Shinjo, you can check the information here.

Maximum UV Index Levels in Shinjo for January

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

Data source: Shinjo 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 Shinjo Compares to Other Months

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

This table compares monthly weather conditions in Shinjo, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-1°C (31°F)	138 mm (5.5 inches)	80%	moderate
February Weather	0°C (32°F)	131 mm (5.1 inches)	79%	moderate
March Weather	4°C (40°F)	131 mm (5.2 inches)	77%	high
April Weather	9°C (48°F)	128 mm (5.1 inches)	75%	very high
May Weather	15°C (60°F)	111 mm (4.4 inches)	80%	very high
June Weather	19°C (66°F)	122 mm (4.8 inches)	87%	very high
July Weather	23°C (74°F)	228 mm (9.0 inches)	92%	extreme
August Weather	24°C (76°F)	208 mm (8.2 inches)	92%	extreme
September Weather	20°C (68°F)	125 mm (4.9 inches)	86%	very high
October Weather	14°C (57°F)	153 mm (6.0 inches)	82%	high
November Weather	8°C (47°F)	112 mm (4.4 inches)	79%	moderate
December Weather	2°C (35°F)	175 mm (6.9 inches)	80%	moderate