December Weather in Mashike, Japan

Last updated: August 23, 2025

In December, the average temperature in Mashike, Japan hovers around -3°C (27°F), with minimums dipping as low as -16°C (4°F) and maximums reaching up to 12°C (54°F). Expect significant precipitation, totaling 120 mm (4.7 in) over approximately 26 days, while the air carries a high humidity level of about 80%.

December Temperature in Mashike

In December in Mashike, the average temperature is -3°C (27°F). The maximum can reach 12°C (54°F), while the minimum can drop as low as -16°C (4°F). Be prepared for a chilly adventure and pack warm layers when traveling to Mashike this month!

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

The chart illustrates December temperature patterns in Mashike, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mashike, December typically has an average temperature of -3°C (27°F), with highs reaching up to 12°C (54°F) and lows dropping to around -16°C (4°F).

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

December Precipitation in Mashike

In Mashike, in December, the total amount of precipitation is 120 mm (4.7 in) spread over 26 days.

December Precipitation Trends in Mashike

The chart displays monthly precipitation patterns in Mashike, 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 Mashike, December typically receives around 120 mm (4.7 inches) of precipitation spread over approximately 26 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 Mashike

In Mashike in December humidity is 80%. With an average temperature of -3°C (27°F), this humidity feels like an uncomfortable chill that penetrates your clothing, making every step outside feel like a battle against the cold.

December Average Humidity in Mashike

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

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

Maximum UV Index Levels in Mashike for December

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

Data source: Mashike 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 Mashike Compares to Other Months

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

This table compares monthly weather conditions in Mashike, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-5°C (23°F)	71 mm (2.8 inches)	84%	low
February Weather	-4°C (24°F)	83 mm (3.3 inches)	83%	moderate
March Weather	0°C (33°F)	91 mm (3.6 inches)	81%	high
April Weather	5°C (42°F)	76 mm (3.0 inches)	81%	high
May Weather	12°C (53°F)	100 mm (3.9 inches)	86%	very high
June Weather	15°C (60°F)	108 mm (4.2 inches)	87%	very high
July Weather	20°C (69°F)	99 mm (3.9 inches)	93%	very high
August Weather	21°C (70°F)	198 mm (7.8 inches)	95%	very high
September Weather	17°C (63°F)	115 mm (4.5 inches)	88%	very high
October Weather	11°C (52°F)	160 mm (6.3 inches)	83%	moderate
November Weather	4°C (40°F)	154 mm (6.1 inches)	79%	moderate
December Weather	-3°C (27°F)	120 mm (4.7 inches)	80%	low