December Weather in Kuromatsunai, Japan

Last updated: August 23, 2025

In December, the average temperature in Kuromatsunai, 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 Kuromatsunai

In December in Kuromatsunai, 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 Kuromatsunai: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Kuromatsunai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kuromatsunai, 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 Kuromatsunai generated using information from the Copernicus Climate Change Service.

December Precipitation in Kuromatsunai

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

December Precipitation Trends in Kuromatsunai

The chart displays monthly precipitation patterns in Kuromatsunai, 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 Kuromatsunai, 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.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

December Humidity in Kuromatsunai

In Kuromatsunai 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 Kuromatsunai

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

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

Maximum UV Index Levels in Kuromatsunai for December

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

Data source: Kuromatsunai 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 Kuromatsunai Compares to Other Months

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

This table compares monthly weather conditions in Kuromatsunai, 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