January Weather in Nambu, Japan

Last updated: August 23, 2025

In January, the average temperature in Nambu, Japan hovers around 2°C (37°F), with a minimum dipping to -9°C (16°F) and a maximum reaching up to 15°C (60°F). Expect about 76 mm (3.0 in) of precipitation over 8 days, accompanied by a relatively high average humidity of 76%.

January Temperature in Nambu

In January in Nambu, the average temperature is 2°C (37°F). Maximums can reach 15°C (60°F) and minimums can be as low as -9°C (16°F). Travelers should be prepared for chilly weather and pack layers to stay comfortable during their visit.

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

The chart illustrates January temperature patterns in Nambu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Nambu, January typically has an average temperature of 2°C (37°F), with highs reaching up to 15°C (60°F) and lows dropping to around -9°C (16°F).

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

January Precipitation in Nambu

In Nambu in January, the precipitation amount is 76 mm (3.0 in) spread over a duration of 8 days.

January Precipitation Trends in Nambu

The chart displays monthly precipitation patterns in Nambu, 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 Nambu, January typically receives around 76 mm (3.0 inches) of precipitation spread over approximately 8 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 Nambu

In Nambu in January humidity is 76%. With an average temperature of 2°C (37°F), this humidity feels like an uncomfortable chill that seeps into your bones, making outdoor activities less enjoyable and prompting the need for warm clothing and careful planning to stay comfortable while traveling.

January Average Humidity in Nambu

This chart illustrates the average monthly humidity levels in Nambu, 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 Nambu is approximately 76%, 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 Nambu

In Nambu 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 Nambu for better planning.

Maximum UV Index Levels in Nambu for January

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

Data source: Nambu 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 Nambu Compares to Other Months

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

This table compares monthly weather conditions in Nambu, 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 (37°F)	76 mm (3.0 inches)	76%	moderate
February Weather	3°C (38°F)	100 mm (3.9 inches)	74%	high
March Weather	7°C (45°F)	246 mm (9.7 inches)	70%	very high
April Weather	11°C (52°F)	254 mm (10.0 inches)	74%	very high
May Weather	16°C (61°F)	239 mm (9.4 inches)	81%	extreme
June Weather	19°C (66°F)	298 mm (11.7 inches)	88%	extreme
July Weather	23°C (73°F)	550 mm (21.6 inches)	93%	extreme
August Weather	24°C (76°F)	324 mm (12.8 inches)	90%	extreme
September Weather	21°C (69°F)	301 mm (11.8 inches)	86%	very high
October Weather	15°C (60°F)	381 mm (15.0 inches)	83%	high
November Weather	10°C (50°F)	109 mm (4.3 inches)	80%	moderate
December Weather	5°C (41°F)	94 mm (3.7 inches)	78%	moderate