January Weather in Numata, Japan

Last updated: August 23, 2025

In Numata, Japan, the average temperature in January hovers around -3°C (28°F), with minimums dipping as low as -16°C (3°F) and peaking at 8°C (46°F). Expect 100 mm (3.9 in) of precipitation over approximately 19 days, resulting in a cozy atmosphere enhanced by an average humidity of 88%.

January Temperature in Numata

In January in Numata, the average temperature is -3°C (28°F), with maximums reaching up to 8°C (46°F) and minimums dropping as low as -16°C (3°F). Travelers should be prepared for cold weather conditions, as substantial fluctuations in temperature can occur during this time.

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

The chart illustrates January temperature patterns in Numata, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Numata, January typically has an average temperature of -3°C (28°F), with highs reaching up to 8°C (46°F) and lows dropping to around -16°C (3°F).

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

January Precipitation in Numata

In Numata in January, the precipitation amount is 100 mm (3.9 in) during a span of 19 days.

January Precipitation Trends in Numata

The chart displays monthly precipitation patterns in Numata, 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 Numata, January typically receives around 100 mm (3.9 inches) of precipitation spread over approximately 19 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 Numata

In Numata in January, humidity is 88%. With an average temperature of -3°C (28°F), this humidity feels like a biting chill that penetrates your clothes, making outdoor excursions uncomfortable and urging you to find shelter often.

January Average Humidity in Numata

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

In Numata 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 Numata for better planning.

Maximum UV Index Levels in Numata for January

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

Data source: Numata 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 Numata Compares to Other Months

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

This table compares monthly weather conditions in Numata, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-3°C (28°F)	100 mm (3.9 inches)	88%	moderate
February Weather	-2°C (29°F)	96 mm (3.8 inches)	86%	high
March Weather	3°C (38°F)	136 mm (5.4 inches)	81%	very high
April Weather	8°C (46°F)	132 mm (5.2 inches)	78%	very high
May Weather	14°C (57°F)	143 mm (5.6 inches)	81%	extreme
June Weather	17°C (63°F)	154 mm (6.1 inches)	88%	extreme
July Weather	21°C (70°F)	267 mm (10.5 inches)	92%	extreme
August Weather	23°C (73°F)	160 mm (6.3 inches)	92%	extreme
September Weather	18°C (65°F)	161 mm (6.3 inches)	89%	very high
October Weather	13°C (55°F)	225 mm (8.9 inches)	87%	high
November Weather	6°C (44°F)	64 mm (2.5 inches)	85%	moderate
December Weather	1°C (33°F)	107 mm (4.2 inches)	86%	moderate