December Weather in Sanyoonoda, Japan

Last updated: August 23, 2025

In December, the average temperature in Sanyoonoda, Japan hovers around 9°C (49°F), with a minimum of 1°C (34°F) and a maximum reaching up to 20°C (68°F). Expect about 69 mm (2.7 in) of precipitation over 9 days, contributing to an average humidity of 79%. Enjoy the cool, fresh atmosphere that this month brings!

December Temperature in Sanyoonoda

In December in Sanyoonoda, the average temperature is 9°C (49°F). Maximums can reach 20°C (68°F) and minimums can be as low as 1°C (34°F). This makes it a great time for travelers to enjoy the cool weather while exploring the beautiful sights of Sanyoonoda.

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

The chart illustrates December temperature patterns in Sanyoonoda, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sanyoonoda, December typically has an average temperature of 9°C (49°F), with highs reaching up to 20°C (68°F) and lows dropping to around 1°C (34°F).

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

December Precipitation in Sanyoonoda

In Sanyoonoda in December, the precipitation amount is 69 mm (2.7 in) spread over 9 days.

December Precipitation Trends in Sanyoonoda

The chart displays monthly precipitation patterns in Sanyoonoda, 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 Sanyoonoda, December typically receives around 69 mm (2.7 inches) of precipitation spread over approximately 9 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 Sanyoonoda

In Sanyoonoda in December humidity is 79%. With an average temperature of 9°C (49°F), this humidity feels like a damp chill that seeps into your bones, making it essential to dress in layers and carrying a light raincoat for a comfortable travel experience.

December Average Humidity in Sanyoonoda

This chart illustrates the average monthly humidity levels in Sanyoonoda, 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 Sanyoonoda is approximately 79%, 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 Sanyoonoda

In Sanyoonoda in December, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Sanyoonoda, you can check the information here.

Maximum UV Index Levels in Sanyoonoda for December

The chart shows the monthly maximum UV Index (UVI) for Sanyoonoda 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 Sanyoonoda typically reaches 3, which falls under the moderate exposure category.

Data source: Sanyoonoda 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 Sanyoonoda Compares to Other Months

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

This table compares monthly weather conditions in Sanyoonoda, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	7°C (45°F)	63 mm (2.5 inches)	75%	moderate
February Weather	7°C (45°F)	84 mm (3.3 inches)	71%	moderate
March Weather	11°C (52°F)	141 mm (5.6 inches)	71%	very high
April Weather	14°C (58°F)	137 mm (5.4 inches)	78%	very high
May Weather	19°C (66°F)	163 mm (6.4 inches)	84%	extreme
June Weather	22°C (73°F)	213 mm (8.4 inches)	86%	extreme
July Weather	26°C (80°F)	308 mm (12.1 inches)	92%	extreme
August Weather	28°C (83°F)	246 mm (9.7 inches)	91%	extreme
September Weather	25°C (77°F)	218 mm (8.6 inches)	84%	very high
October Weather	20°C (68°F)	124 mm (4.9 inches)	83%	high
November Weather	14°C (58°F)	46 mm (1.8 inches)	81%	high
December Weather	9°C (49°F)	69 mm (2.7 inches)	79%	moderate