January Weather in Kashiwazaki, Japan

Last updated: August 23, 2025

In January, the average temperature in Kashiwazaki, Japan hovers around 2°C (36°F), with a minimum dipping to -10°C (15°F) and a maximum reaching up to 14°C (57°F). Expect precipitation of approximately 194 mm (7.6 in) over about 21 days, accompanied by a high average humidity of 88%. Stay cozy and prepared for the elements!

January Temperature in Kashiwazaki

In January in Kashiwazaki, the average temperature is 2°C (36°F). Maximum temperatures can reach 14°C (57°F), while the minimum can drop to as low as -10°C (15°F). Travelers should be prepared for chilly conditions and pack accordingly for both cold and mild weather.

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

The chart illustrates January temperature patterns in Kashiwazaki, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kashiwazaki, January typically has an average temperature of 2°C (36°F), with highs reaching up to 14°C (57°F) and lows dropping to around -10°C (15°F).

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

January Precipitation in Kashiwazaki

In Kashiwazaki in January, the precipitation amount is 194 mm (7.6 in) spread over 21 days.

January Precipitation Trends in Kashiwazaki

The chart displays monthly precipitation patterns in Kashiwazaki, 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 Kashiwazaki, January typically receives around 194 mm (7.6 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 Kashiwazaki

In Kashiwazaki in January, humidity is 88%. With an average temperature of 2°C (36°F), this humidity feels like a cold, damp blanket wrapping around you, making traveling uncomfortable and energy-draining as every step through the chill seems heavier in the thick air.

January Average Humidity in Kashiwazaki

This chart illustrates the average monthly humidity levels in Kashiwazaki, 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 Kashiwazaki is approximately 88%, 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 Kashiwazaki

In Kashiwazaki 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 Kashiwazaki, you can check the information here.

Maximum UV Index Levels in Kashiwazaki for January

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

Data source: Kashiwazaki 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 Kashiwazaki Compares to Other Months

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

This table compares monthly weather conditions in Kashiwazaki, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	2°C (36°F)	194 mm (7.6 inches)	88%	moderate
February Weather	3°C (37°F)	164 mm (6.5 inches)	86%	moderate
March Weather	7°C (45°F)	135 mm (5.3 inches)	81%	very high
April Weather	12°C (53°F)	127 mm (5.0 inches)	78%	very high
May Weather	18°C (64°F)	123 mm (4.8 inches)	81%	very high
June Weather	21°C (70°F)	126 mm (5.0 inches)	88%	extreme
July Weather	26°C (79°F)	326 mm (12.8 inches)	92%	extreme
August Weather	27°C (81°F)	164 mm (6.4 inches)	92%	extreme
September Weather	23°C (73°F)	171 mm (6.7 inches)	89%	very high
October Weather	17°C (62°F)	188 mm (7.4 inches)	87%	high
November Weather	11°C (51°F)	149 mm (5.8 inches)	85%	moderate
December Weather	5°C (41°F)	226 mm (8.9 inches)	86%	moderate