December Weather in Biratori, Japan

Last updated: August 23, 2025

In December, the average temperature in Biratori, Japan hovers around 0°C (31°F). Expect chilly conditions, with minimum temperatures dipping to -11°C (12°F) and a maximum of 13°C (56°F). Along with the cold, you will encounter 83 mm (3.3 in) of precipitation spread across 20 days, creating an ambiance of 80% humidity that adds to the overall crispness of the month.

December Temperature in Biratori

In December in Biratori, the average temperature is 0°C (31°F). Maximum temperatures can reach 13°C (56°F), while minimums can drop as low as -11°C (12°F). Travelers should be prepared for chilly conditions and dress in layers to stay comfortable during their visit.

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

The chart illustrates December temperature patterns in Biratori, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Biratori, December typically has an average temperature of 0°C (31°F), with highs reaching up to 13°C (56°F) and lows dropping to around -11°C (12°F).

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

December Precipitation in Biratori

In Biratori in December, the precipitation amount is 83 mm (3.3 in) over the course of 20 days.

December Precipitation Trends in Biratori

The chart displays monthly precipitation patterns in Biratori, 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 Biratori, December typically receives around 83 mm (3.3 inches) of precipitation spread over approximately 20 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 Biratori

In Biratori in December, humidity is 80%. With an average temperature of 0°C (31°F), this humidity feels like an icy blanket enveloping you, making every step outside a challenging endeavor as the cold dampness clings to your skin, leaving you shivering and longing for warmth.

December Average Humidity in Biratori

This chart illustrates the average monthly humidity levels in Biratori, 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 Biratori is approximately 80%, 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 Biratori

In Biratori in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Biratori, you can visit Hourly UV Index in Biratori.

Maximum UV Index Levels in Biratori for December

The chart shows the monthly maximum UV Index (UVI) for Biratori 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 Biratori typically reaches 2, which falls under the low exposure category.

Data source: Biratori 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 Biratori Compares to Other Months

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

This table compares monthly weather conditions in Biratori, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-3°C (26°F)	53 mm (2.1 inches)	84%	low
February Weather	-3°C (26°F)	65 mm (2.5 inches)	83%	moderate
March Weather	2°C (35°F)	91 mm (3.6 inches)	81%	moderate
April Weather	6°C (43°F)	94 mm (3.7 inches)	81%	very high
May Weather	11°C (52°F)	101 mm (4.0 inches)	86%	very high
June Weather	15°C (59°F)	116 mm (4.6 inches)	87%	very high
July Weather	19°C (67°F)	104 mm (4.1 inches)	93%	very high
August Weather	21°C (69°F)	152 mm (6.0 inches)	95%	very high
September Weather	18°C (65°F)	120 mm (4.7 inches)	88%	very high
October Weather	13°C (55°F)	181 mm (7.1 inches)	83%	high
November Weather	6°C (44°F)	116 mm (4.6 inches)	79%	moderate
December Weather	0°C (31°F)	83 mm (3.3 inches)	80%	low