December Weather in Suttsu, Japan

Last updated: August 23, 2025

In December, the average temperature in Suttsu, Japan hovers around 0°C (31°F). Expect chilly days, with minimums dipping to -8°C (18°F) and maximums reaching up to 11°C (53°F). This month sees 197 mm (7.7 in) of precipitation spread over 28 days, contributing to an average humidity of 80%. Make sure to bundle up and stay dry!

December Temperature in Suttsu

In December in Suttsu, the average temperature is 0°C (31°F). The maximum can reach 11°C (53°F), while the minimum can drop as low as -8°C (18°F). Be prepared for chilly conditions and pack accordingly for your trip!

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

The chart illustrates December temperature patterns in Suttsu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Suttsu, December typically has an average temperature of 0°C (31°F), with highs reaching up to 11°C (53°F) and lows dropping to around -8°C (18°F).

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

December Precipitation in Suttsu

In Suttsu in December, the precipitation amount is 197 mm (7.7 in) over the course of 28 days.

December Precipitation Trends in Suttsu

The chart displays monthly precipitation patterns in Suttsu, 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 Suttsu, December typically receives around 197 mm (7.7 inches) of precipitation spread over approximately 28 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 Suttsu

In Suttsu 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 Suttsu

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

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

Maximum UV Index Levels in Suttsu for December

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

Data source: Suttsu 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 Suttsu Compares to Other Months

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

This table compares monthly weather conditions in Suttsu, 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 (28°F)	117 mm (4.6 inches)	84%	low
February Weather	-3°C (28°F)	114 mm (4.5 inches)	83%	moderate
March Weather	1°C (35°F)	104 mm (4.1 inches)	81%	high
April Weather	5°C (42°F)	93 mm (3.7 inches)	81%	high
May Weather	11°C (52°F)	90 mm (3.5 inches)	86%	very high
June Weather	15°C (59°F)	119 mm (4.7 inches)	87%	very high
July Weather	20°C (67°F)	116 mm (4.6 inches)	93%	very high
August Weather	21°C (70°F)	158 mm (6.2 inches)	95%	very high
September Weather	19°C (66°F)	151 mm (5.9 inches)	88%	very high
October Weather	13°C (56°F)	165 mm (6.5 inches)	83%	moderate
November Weather	6°C (44°F)	199 mm (7.8 inches)	79%	moderate
December Weather	0°C (31°F)	197 mm (7.7 inches)	80%	low