January Weather in Nagasu, Japan

Last updated: August 23, 2025

In January, the average temperature in Nagasu, Japan hovers around 8°C (46°F), with a minimum reaching as low as -2°C (29°F) and a maximum peaking at 18°C (64°F). Expect a precipitation amount of 52 mm (2.0 in) spread over approximately 6 days, contributing to an average humidity of 75%. Stay prepared for a cool and damp experience!

January Temperature in Nagasu

In January in Nagasu, the average temperature is 8°C (46°F). Maximums can reach 18°C (64°F), and minimums can drop as low as -2°C (29°F). It's advisable to pack layers to stay comfortable while exploring the diverse weather conditions.

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

The chart illustrates January temperature patterns in Nagasu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Nagasu, January typically has an average temperature of 8°C (46°F), with highs reaching up to 18°C (64°F) and lows dropping to around -2°C (29°F).

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

January Precipitation in Nagasu

In Nagasu, in January, the precipitation amount is 52 mm (2.0 in) over the course of 6 days.

January Precipitation Trends in Nagasu

The chart displays monthly precipitation patterns in Nagasu, 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 Nagasu, January typically receives around 52 mm (2.0 inches) of precipitation spread over approximately 6 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 Nagasu

In Nagasu in January, humidity is 75%. With an average temperature of 8°C (46°F), this humidity feels like a brisk chill that invigorates your senses, making outdoor adventures both refreshing and slightly uncomfortable.

January Average Humidity in Nagasu

This chart illustrates the average monthly humidity levels in Nagasu, 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 Nagasu is approximately 75%, 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 Nagasu

In Nagasu 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 Nagasu for better planning.

Maximum UV Index Levels in Nagasu for January

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

Data source: Nagasu 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 Nagasu Compares to Other Months

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

This table compares monthly weather conditions in Nagasu, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	8°C (46°F)	52 mm (2.0 inches)	75%	moderate
February Weather	8°C (47°F)	88 mm (3.5 inches)	71%	high
March Weather	12°C (54°F)	131 mm (5.1 inches)	71%	very high
April Weather	16°C (61°F)	126 mm (4.9 inches)	78%	extreme
May Weather	20°C (69°F)	201 mm (7.9 inches)	84%	extreme
June Weather	24°C (75°F)	246 mm (9.7 inches)	86%	extreme
July Weather	27°C (81°F)	465 mm (18.3 inches)	92%	extreme
August Weather	28°C (84°F)	299 mm (11.8 inches)	91%	extreme
September Weather	25°C (78°F)	192 mm (7.6 inches)	84%	extreme
October Weather	20°C (68°F)	111 mm (4.4 inches)	83%	high
November Weather	14°C (58°F)	66 mm (2.6 inches)	81%	high
December Weather	9°C (49°F)	77 mm (3.0 inches)	79%	moderate