December Weather in Tanuma, Japan

Last updated: August 23, 2025

In Tanuma, Japan, the average temperature in December hovers around 6°C (43°F). Expect a minimum of -3°C (27°F) and a maximum of 19°C (66°F) during this period. With precipitation totaling 45 mm (1.8 in) over 6 days, and an average humidity of 86%, be prepared for a chilly and damp atmosphere.

December Temperature in Tanuma

In December in Tanuma, the average temperature is 6°C (43°F). The maximum can reach 19°C (66°F) and the minimum can be as low as -3°C (27°F). Overall, it's advisable to pack layers to prepare for varying temperatures during your travels.

December Weather in Tanuma: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Tanuma, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Tanuma, December typically has an average temperature of 6°C (43°F), with highs reaching up to 19°C (66°F) and lows dropping to around -3°C (27°F).

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

December Precipitation in Tanuma

In Tanuma in December, the precipitation amount is 45 mm (1.8 in) over the course of 6 days.

December Precipitation Trends in Tanuma

The chart displays monthly precipitation patterns in Tanuma, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Tanuma, December typically receives around 45 mm (1.8 inches) of precipitation spread over approximately 6 days.

Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

December Humidity in Tanuma

In Tanuma in December humidity is 86%. With an average temperature of 6°C (43°F), this humidity feels like a chilling blanket enveloping you, making outdoor exploration feel damp and uncomfortable.

December Average Humidity in Tanuma

This chart illustrates the average monthly humidity levels in Tanuma, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Tanuma is approximately 86%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Tanuma

In Tanuma in December, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Tanuma, you can check the information here.

Maximum UV Index Levels in Tanuma for December

The chart shows the monthly maximum UV Index (UVI) for Tanuma in December, 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 December, the maximum UV index in Tanuma typically reaches 3, which falls under the moderate exposure category.

Data source: Tanuma December 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 December Weather in Tanuma Compares to Other Months

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

This table compares monthly weather conditions in Tanuma, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	4°C (39°F)	40 mm (1.6 inches)	88%	moderate
February Weather	5°C (41°F)	42 mm (1.7 inches)	86%	moderate
March Weather	9°C (49°F)	129 mm (5.1 inches)	81%	high
April Weather	14°C (57°F)	127 mm (5.0 inches)	78%	very high
May Weather	19°C (66°F)	137 mm (5.4 inches)	81%	very high
June Weather	22°C (72°F)	175 mm (6.9 inches)	88%	extreme
July Weather	25°C (78°F)	274 mm (10.8 inches)	92%	extreme
August Weather	27°C (82°F)	163 mm (6.4 inches)	92%	very high
September Weather	23°C (74°F)	213 mm (8.4 inches)	89%	very high
October Weather	18°C (64°F)	267 mm (10.5 inches)	87%	high
November Weather	12°C (53°F)	57 mm (2.3 inches)	85%	moderate
December Weather	6°C (43°F)	45 mm (1.8 inches)	86%	moderate