January Weather in Toyohama, Japan

Last updated: August 23, 2025

In January, the average temperature in Toyohama, Japan hovers around 7°C (46°F), with a minimum of 1°C (34°F) and a pleasant maximum of 16°C (61°F). Expect some rain as the region receives around 56 mm (2.2 in) of precipitation over 7 days, contributing to a high average humidity of 82%. Don't forget your umbrella and a light jacket!

January Temperature in Toyohama

In January in Toyohama, the average temperature is 7°C (46°F). The maximum can reach 16°C (61°F), while the minimum can be as low as 1°C (34°F). Travelers should prepare for a chilly climate, layering their clothing to comfortably enjoy the sights.

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

The chart illustrates January temperature patterns in Toyohama, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Toyohama, January typically has an average temperature of 7°C (46°F), with highs reaching up to 16°C (61°F) and lows dropping to around 1°C (34°F).

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

January Precipitation in Toyohama

In Toyohama in January, the total precipitation amount is 56 mm (2.2 in) over a period of 7 days.

January Precipitation Trends in Toyohama

The chart displays monthly precipitation patterns in Toyohama, 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 Toyohama, January typically receives around 56 mm (2.2 inches) of precipitation spread over approximately 7 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 Toyohama

In Toyohama in January humidity is 82%. With an average temperature of 7°C (46°F), this humidity feels like a damp chill that seeps into your bones, making travel uncomfortable and necessitating extra layers to stay warm and dry.

January Average Humidity in Toyohama

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

In Toyohama 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 Toyohama for better planning.

Maximum UV Index Levels in Toyohama for January

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

Data source: Toyohama 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 Toyohama Compares to Other Months

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

This table compares monthly weather conditions in Toyohama, 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 (46°F)	56 mm (2.2 inches)	82%	moderate
February Weather	8°C (46°F)	60 mm (2.4 inches)	79%	moderate
March Weather	11°C (52°F)	141 mm (5.5 inches)	74%	very high
April Weather	15°C (58°F)	136 mm (5.4 inches)	76%	very high
May Weather	19°C (66°F)	170 mm (6.7 inches)	83%	extreme
June Weather	22°C (72°F)	199 mm (7.8 inches)	87%	extreme
July Weather	26°C (79°F)	286 mm (11.3 inches)	93%	extreme
August Weather	28°C (83°F)	147 mm (5.8 inches)	91%	extreme
September Weather	25°C (77°F)	183 mm (7.2 inches)	87%	very high
October Weather	20°C (69°F)	290 mm (11.4 inches)	85%	high
November Weather	15°C (59°F)	67 mm (2.6 inches)	83%	moderate
December Weather	10°C (50°F)	68 mm (2.7 inches)	83%	moderate