January Weather in Ojiya, Japan

Last updated: August 23, 2025

In January, the average temperature in Ojiya, Japan hovers around 1°C (34°F), with extremes ranging from a chilly -12°C (11°F) to a more moderate 13°C (56°F). Expect about 200 mm (7.9 in) of precipitation spread over 21 days, accompanied by a high average humidity of 88%. Be prepared for a damp and cool month!

January Temperature in Ojiya

In January in Ojiya, the average temperature is 1°C (34°F). Maximum temperatures can reach 13°C (56°F), while minimums can drop as low as -12°C (11°F). Travelers should be prepared for chilly conditions and pack accordingly for both cold days and warmer afternoons.

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

The chart illustrates January temperature patterns in Ojiya, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ojiya, January typically has an average temperature of 1°C (34°F), with highs reaching up to 13°C (56°F) and lows dropping to around -12°C (11°F).

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

January Precipitation in Ojiya

In Ojiya in January, the total precipitation amount is 200 mm (7.9 in) over the course of 21 days.

January Precipitation Trends in Ojiya

The chart displays monthly precipitation patterns in Ojiya, 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 Ojiya, January typically receives around 200 mm (7.9 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 Ojiya

In Ojiya in January humidity is 88%. With an average temperature of 1°C (34°F), this humidity feels like a chilling embrace, making travel feel damp and brisk, where every breath carries a crisp bite, and the air clings to your skin, urging you to seek warmth and comfort.

January Average Humidity in Ojiya

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

In Ojiya 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 Ojiya for better planning.

Maximum UV Index Levels in Ojiya for January

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

Data source: Ojiya 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 Ojiya Compares to Other Months

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

This table compares monthly weather conditions in Ojiya, 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 (34°F)	200 mm (7.9 inches)	88%	moderate
February Weather	1°C (35°F)	182 mm (7.2 inches)	86%	moderate
March Weather	6°C (43°F)	159 mm (6.2 inches)	81%	very high
April Weather	11°C (52°F)	146 mm (5.8 inches)	78%	very high
May Weather	17°C (63°F)	147 mm (5.8 inches)	81%	very high
June Weather	21°C (69°F)	156 mm (6.1 inches)	88%	extreme
July Weather	25°C (77°F)	360 mm (14.2 inches)	92%	extreme
August Weather	26°C (80°F)	178 mm (7.0 inches)	92%	extreme
September Weather	22°C (71°F)	179 mm (7.0 inches)	89%	very high
October Weather	16°C (61°F)	205 mm (8.1 inches)	87%	high
November Weather	9°C (49°F)	150 mm (5.9 inches)	85%	moderate
December Weather	3°C (38°F)	229 mm (9.0 inches)	86%	moderate