January Weather in Nagahama, Japan

Last updated: August 23, 2025

In January, the average temperature in Nagahama, Japan hovers around 3°C (37°F). Expect chilly days, with temperatures dipping as low as -6°C (22°F) and reaching a maximum of 14°C (58°F). Throughout the month, 98 mm (3.9 in) of precipitation is likely, spread over 17 days, contributing to a high average humidity of 82%. Be prepared for a cool, damp atmosphere as you explore!

January Temperature in Nagahama

In January in Nagahama, the average temperature is 3°C (37°F). Maximum temperatures can reach 14°C (58°F), while minimums can drop as low as -6°C (22°F). Therefore, if you're planning to travel during this time, make sure to pack layers to stay comfortable in varying conditions.

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

The chart illustrates January temperature patterns in Nagahama, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Nagahama, January typically has an average temperature of 3°C (37°F), with highs reaching up to 14°C (58°F) and lows dropping to around -6°C (22°F).

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

January Precipitation in Nagahama

In Nagahama in January, the precipitation amount is 98 mm (3.9 in) over a span of 17 days.

January Precipitation Trends in Nagahama

The chart displays monthly precipitation patterns in Nagahama, 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 Nagahama, January typically receives around 98 mm (3.9 inches) of precipitation spread over approximately 17 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 Nagahama

In Nagahama in January, humidity is 82%. With an average temperature of 3°C (37°F), this humidity feels like an uncomfortable chill that wraps around you, making outdoor activities less enjoyable and prompting a constant search for warmth.

January Average Humidity in Nagahama

This chart illustrates the average monthly humidity levels in Nagahama, 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 Nagahama is approximately 82%, 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 Nagahama

In Nagahama 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 Nagahama for better planning.

Maximum UV Index Levels in Nagahama for January

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

Data source: Nagahama 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 Nagahama Compares to Other Months

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

This table compares monthly weather conditions in Nagahama, 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 (37°F)	98 mm (3.9 inches)	82%	moderate
February Weather	3°C (38°F)	100 mm (3.9 inches)	79%	high
March Weather	8°C (46°F)	152 mm (6.0 inches)	74%	very high
April Weather	12°C (54°F)	176 mm (6.9 inches)	76%	very high
May Weather	17°C (63°F)	186 mm (7.3 inches)	83%	extreme
June Weather	21°C (69°F)	213 mm (8.4 inches)	87%	extreme
July Weather	25°C (77°F)	393 mm (15.5 inches)	93%	extreme
August Weather	27°C (80°F)	244 mm (9.6 inches)	91%	extreme
September Weather	22°C (73°F)	230 mm (9.1 inches)	87%	very high
October Weather	17°C (63°F)	236 mm (9.3 inches)	85%	high
November Weather	11°C (52°F)	78 mm (3.1 inches)	83%	moderate
December Weather	6°C (42°F)	128 mm (5.0 inches)	83%	moderate