December Weather in Uruma, Japan

Last updated: August 23, 2025

In December, the average temperature in Uruma, Japan hovers around 20°C (68°F), with a minimum of 14°C (57°F) and a maximum reaching 25°C (78°F). Expect 162 mm (6.4 in) of precipitation spread over 15 days, contributing to a rather humid atmosphere with an average humidity of 75%.

December Temperature in Uruma

In December in Uruma, the average temperature is 20°C (68°F). The maximum can reach 25°C (78°F) and the minimum can be as low as 14°C (57°F). This mild climate makes it an ideal destination for outdoor activities and sightseeing.

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

The chart illustrates December temperature patterns in Uruma, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Uruma, December typically has an average temperature of 20°C (68°F), with highs reaching up to 25°C (78°F) and lows dropping to around 14°C (57°F).

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

December Precipitation in Uruma

In Uruma in December, the total precipitation amount is 162 mm (6.4 in) spread over 15 days.

December Precipitation Trends in Uruma

The chart displays monthly precipitation patterns in Uruma, 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 Uruma, December typically receives around 162 mm (6.4 inches) of precipitation spread over approximately 15 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 Uruma

In Uruma in December, humidity is 75%. With an average temperature of 20°C (68°F), this humidity feels like a warm, muggy embrace that can leave travelers feeling sticky and exhausted.

December Average Humidity in Uruma

This chart illustrates the average monthly humidity levels in Uruma, 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 Uruma is approximately 75%, 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 Uruma

In Uruma in December, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Uruma, you can refer to this Hourly UV Index in Uruma.

Maximum UV Index Levels in Uruma for December

The chart shows the monthly maximum UV Index (UVI) for Uruma 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 Uruma typically reaches 6, which falls under the high exposure category.

Data source: Uruma 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 Uruma Compares to Other Months

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

This table compares monthly weather conditions in Uruma, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	18°C (65°F)	99 mm (3.9 inches)	71%	high
February Weather	18°C (65°F)	98 mm (3.9 inches)	71%	very high
March Weather	20°C (68°F)	109 mm (4.3 inches)	76%	extreme
April Weather	21°C (70°F)	146 mm (5.7 inches)	82%	extreme
May Weather	24°C (75°F)	213 mm (8.4 inches)	84%	extreme
June Weather	26°C (80°F)	328 mm (12.9 inches)	86%	extreme
July Weather	28°C (83°F)	180 mm (7.1 inches)	86%	extreme
August Weather	28°C (83°F)	187 mm (7.4 inches)	82%	extreme
September Weather	28°C (82°F)	237 mm (9.3 inches)	82%	extreme
October Weather	26°C (78°F)	149 mm (5.8 inches)	80%	very high
November Weather	23°C (74°F)	106 mm (4.2 inches)	79%	very high
December Weather	20°C (68°F)	162 mm (6.4 inches)	75%	high