December Weather in Sobetsu, Japan

Last updated: August 23, 2025

In December, the average temperature in Sobetsu, Japan hovers around -2°C (29°F), making it a chilly time of year. Expect lows of -13°C (10°F) and highs reaching 12°C (53°F). With an average precipitation of 66 mm (2.6 in) spread over 17 days, it's wise to come prepared for wet weather. Additionally, the air carries a notable 80% humidity, adding to the brisk atmosphere.

December Temperature in Sobetsu

In December in Sobetsu, the average temperature is -2°C (29°F). Maximums can reach 12°C (53°F), while minimums can drop as low as -13°C (10°F). It’s advisable to dress warmly and prepare for potential cold weather conditions if you plan to travel during this time.

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

The chart illustrates December temperature patterns in Sobetsu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sobetsu, December typically has an average temperature of -2°C (29°F), with highs reaching up to 12°C (53°F) and lows dropping to around -13°C (10°F).

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

December Precipitation in Sobetsu

In Sobetsu in December, the precipitation amount is 66 mm (2.6 in) spread over 17 days.

December Precipitation Trends in Sobetsu

The chart displays monthly precipitation patterns in Sobetsu, 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 Sobetsu, December typically receives around 66 mm (2.6 inches) of precipitation spread over approximately 17 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 Sobetsu

In Sobetsu in December humidity is 80%. With an average temperature of -2°C (29°F), this humidity feels like a heavy, biting chill that seeps into your bones, making outdoor exploration uncomfortable and requiring extra layers to ward off both the cold and the dampness.

December Average Humidity in Sobetsu

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

In Sobetsu 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 Sobetsu, you can visit Hourly UV Index in Sobetsu.

Maximum UV Index Levels in Sobetsu for December

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

Data source: Sobetsu 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 Sobetsu Compares to Other Months

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

This table compares monthly weather conditions in Sobetsu, 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 (24°F)	57 mm (2.2 inches)	84%	low
February Weather	-4°C (25°F)	56 mm (2.2 inches)	83%	moderate
March Weather	1°C (34°F)	88 mm (3.5 inches)	81%	moderate
April Weather	5°C (42°F)	96 mm (3.8 inches)	81%	high
May Weather	11°C (52°F)	88 mm (3.5 inches)	86%	very high
June Weather	15°C (59°F)	122 mm (4.8 inches)	87%	very high
July Weather	19°C (66°F)	97 mm (3.8 inches)	93%	very high
August Weather	20°C (69°F)	175 mm (6.9 inches)	95%	very high
September Weather	18°C (64°F)	135 mm (5.3 inches)	88%	very high
October Weather	12°C (54°F)	129 mm (5.1 inches)	83%	high
November Weather	5°C (42°F)	106 mm (4.2 inches)	79%	moderate
December Weather	-2°C (29°F)	66 mm (2.6 inches)	80%	low