January Weather in Nagato, Japan

Last updated: August 23, 2025

In January, the average temperature in Nagato, Japan hovers around 7°C (45°F). With a minimum dipping to -3°C (27°F) and reaching a maximum of 17°C (62°F), the weather can be quite varied. Expect about 64 mm (2.5 in) of precipitation spread over 10 days, and a relative humidity of 76% that adds a touch of dampness to the air.

January Temperature in Nagato

In January in Nagato, the average temperature is 7°C (45°F). The maximum can reach 17°C (62°F), and the minimum can drop to as low as -3°C (27°F). Visitors should be prepared for a range of temperatures and pack accordingly to enjoy their trip comfortably.

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

The chart illustrates January temperature patterns in Nagato, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Nagato, January typically has an average temperature of 7°C (45°F), with highs reaching up to 17°C (62°F) and lows dropping to around -3°C (27°F).

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

January Precipitation in Nagato

In Nagato in January, the precipitation amount is 64 mm (2.5 in) over a span of 10 days.

January Precipitation Trends in Nagato

The chart displays monthly precipitation patterns in Nagato, 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 Nagato, January typically receives around 64 mm (2.5 inches) of precipitation spread over approximately 10 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 Nagato

In Nagato in January, humidity is 76%. With an average temperature of 7°C (45°F), this humidity feels like a chilly embrace that can make even short walks feel damp and uncomfortable, requiring travelers to dress in layers and prepare for sudden changes in weather.

January Average Humidity in Nagato

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

In Nagato 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 Nagato for better planning.

Maximum UV Index Levels in Nagato for January

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

Data source: Nagato 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 Nagato Compares to Other Months

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

This table compares monthly weather conditions in Nagato, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	7°C (45°F)	64 mm (2.5 inches)	76%	moderate
February Weather	7°C (46°F)	77 mm (3.0 inches)	72%	moderate
March Weather	11°C (52°F)	139 mm (5.5 inches)	69%	very high
April Weather	15°C (59°F)	109 mm (4.3 inches)	75%	very high
May Weather	19°C (67°F)	111 mm (4.4 inches)	84%	extreme
June Weather	23°C (73°F)	178 mm (7.0 inches)	88%	extreme
July Weather	26°C (80°F)	298 mm (11.7 inches)	95%	extreme
August Weather	28°C (83°F)	248 mm (9.8 inches)	93%	extreme
September Weather	24°C (76°F)	233 mm (9.2 inches)	84%	very high
October Weather	19°C (67°F)	117 mm (4.6 inches)	79%	high
November Weather	14°C (58°F)	45 mm (1.8 inches)	76%	moderate
December Weather	9°C (48°F)	74 mm (2.9 inches)	75%	moderate