January Weather in Toon, Japan

Last updated: August 23, 2025

In January, the average temperature in Toon, Japan hovers around 4°C (39°F), with min temperatures dipping as low as -7°C (20°F) and max temperatures reaching up to 14°C (58°F). Expect about 62 mm (2.4 in) of precipitation over approximately 9 days, contributing to an average humidity of 74%. Brace yourself for a chilly and damp January!

January Temperature in Toon

In January in Toon, the average temperature is 4°C (39°F), with maximums reaching 14°C (58°F) and minimums dropping as low as -7°C (20°F). It's essential to pack warm clothing and prepare for chilly weather if you're planning to travel during this time.

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

The chart illustrates January temperature patterns in Toon, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Toon, January typically has an average temperature of 4°C (39°F), with highs reaching up to 14°C (58°F) and lows dropping to around -7°C (20°F).

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

January Precipitation in Toon

In Toon in January, the precipitation amount is 62 mm (2.4 in) over the course of 9 days.

January Precipitation Trends in Toon

The chart displays monthly precipitation patterns in Toon, 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 Toon, January typically receives around 62 mm (2.4 inches) of precipitation spread over approximately 9 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 Toon

In Toon in January humidity is 74%. With an average temperature of 4°C (39°F), this humidity feels like a damp chill that seeps into your bones, making traveling uncomfortable and necessitating extra layers to stay warm while navigating the potentially slippery streets.

January Average Humidity in Toon

This chart illustrates the average monthly humidity levels in Toon, 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 Toon is approximately 74%, 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 Toon

In Toon 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 Toon for better planning.

Maximum UV Index Levels in Toon for January

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

Data source: Toon 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 Toon Compares to Other Months

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

This table compares monthly weather conditions in Toon, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	4°C (39°F)	62 mm (2.4 inches)	74%	moderate
February Weather	4°C (40°F)	96 mm (3.8 inches)	70%	high
March Weather	9°C (48°F)	141 mm (5.5 inches)	70%	very high
April Weather	13°C (56°F)	147 mm (5.8 inches)	76%	very high
May Weather	18°C (65°F)	171 mm (6.7 inches)	82%	extreme
June Weather	21°C (71°F)	235 mm (9.3 inches)	86%	extreme
July Weather	25°C (78°F)	420 mm (16.6 inches)	91%	extreme
August Weather	27°C (80°F)	224 mm (8.8 inches)	88%	extreme
September Weather	23°C (73°F)	258 mm (10.1 inches)	85%	extreme
October Weather	17°C (63°F)	251 mm (9.9 inches)	82%	very high
November Weather	11°C (52°F)	69 mm (2.7 inches)	79%	high
December Weather	6°C (42°F)	77 mm (3.0 inches)	77%	moderate