December Weather in Ama, Japan

Last updated: August 23, 2025

In December, the average temperature in Ama, Japan hovers around 10°C (51°F), with lows dipping to 2°C (36°F) and highs reaching up to 19°C (67°F). Expect a fair amount of rain, averaging 143 mm (5.6 in) over 22 days, and prepare for high humidity levels at 82%.

December Temperature in Ama

In December in Ama, the average temperature is 10°C (51°F). Maximums can reach 19°C (67°F), while minimums can dip as low as 2°C (36°F). This mild climate makes it an ideal time for exploring the outdoors and enjoying the local attractions.

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

The chart illustrates December temperature patterns in Ama, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ama, December typically has an average temperature of 10°C (51°F), with highs reaching up to 19°C (67°F) and lows dropping to around 2°C (36°F).

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

December Precipitation in Ama

In Ama in December, the total precipitation amount is 143 mm (5.6 in) spread over 22 days.

December Precipitation Trends in Ama

The chart displays monthly precipitation patterns in Ama, 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 Ama, December typically receives around 143 mm (5.6 inches) of precipitation spread over approximately 22 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 Ama

In Ama in December humidity is 82%. With an average temperature of 10°C (51°F), this humidity feels like a damp chill that clings to your skin, making outdoor adventures less appealing and prompting travelers to seek cozy indoor activities or warm drinks to counter the brisk air.

December Average Humidity in Ama

This chart illustrates the average monthly humidity levels in Ama, 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 Ama is approximately 82%, 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 Ama

In Ama 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 Ama, you can check the information here.

Maximum UV Index Levels in Ama for December

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

Data source: Ama 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 Ama Compares to Other Months

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

This table compares monthly weather conditions in Ama, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	8°C (46°F)	120 mm (4.7 inches)	82%	moderate
February Weather	7°C (46°F)	115 mm (4.5 inches)	79%	moderate
March Weather	10°C (51°F)	124 mm (4.9 inches)	73%	high
April Weather	13°C (56°F)	111 mm (4.4 inches)	74%	very high
May Weather	17°C (63°F)	99 mm (3.9 inches)	84%	very high
June Weather	20°C (69°F)	147 mm (5.8 inches)	86%	extreme
July Weather	25°C (77°F)	248 mm (9.8 inches)	92%	extreme
August Weather	27°C (81°F)	197 mm (7.7 inches)	92%	extreme
September Weather	24°C (76°F)	211 mm (8.3 inches)	87%	very high
October Weather	20°C (68°F)	137 mm (5.4 inches)	85%	high
November Weather	15°C (59°F)	64 mm (2.5 inches)	84%	moderate
December Weather	10°C (51°F)	143 mm (5.6 inches)	82%	moderate