December Weather in Omuta, Japan

Last updated: August 23, 2025

In December, the average temperature in Omuta, Japan is a crisp 9°C (49°F). Expect a temperature range with a minimum of 0°C (33°F) and a maximum of 22°C (72°F). During this month, anticipate about 77 mm (3.0 in) of precipitation spread over 7 days, accompanied by an average humidity of 79%.

December Temperature in Omuta

In December in Omuta, the average temperature is 9°C (49°F). Maximum temperatures can reach up to 22°C (72°F), while minimums can drop as low as 0°C (33°F). Be sure to pack layers to accommodate both warm days and chilly nights during your travels!

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

The chart illustrates December temperature patterns in Omuta, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Omuta, December typically has an average temperature of 9°C (49°F), with highs reaching up to 22°C (72°F) and lows dropping to around 0°C (33°F).

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

December Precipitation in Omuta

In Omuta in December, the precipitation amount is 77 mm (3.0 in) over the course of 7 days.

December Precipitation Trends in Omuta

The chart displays monthly precipitation patterns in Omuta, 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 Omuta, December typically receives around 77 mm (3.0 inches) of precipitation spread over approximately 7 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 Omuta

In Omuta 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 Omuta

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

In Omuta in December, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Omuta for better planning.

Maximum UV Index Levels in Omuta for December

The chart shows the monthly maximum UV Index (UVI) for Omuta 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 Omuta typically reaches 4, which falls under the moderate exposure category.

Data source: Omuta 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 Omuta Compares to Other Months

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

This table compares monthly weather conditions in Omuta, 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)	52 mm (2.0 inches)	75%	moderate
February Weather	8°C (47°F)	88 mm (3.5 inches)	71%	high
March Weather	12°C (54°F)	131 mm (5.1 inches)	71%	very high
April Weather	16°C (61°F)	126 mm (4.9 inches)	78%	extreme
May Weather	20°C (69°F)	201 mm (7.9 inches)	84%	extreme
June Weather	24°C (75°F)	246 mm (9.7 inches)	86%	extreme
July Weather	27°C (81°F)	465 mm (18.3 inches)	92%	extreme
August Weather	28°C (84°F)	299 mm (11.8 inches)	91%	extreme
September Weather	25°C (78°F)	192 mm (7.6 inches)	84%	extreme
October Weather	20°C (68°F)	111 mm (4.4 inches)	83%	high
November Weather	14°C (58°F)	66 mm (2.6 inches)	81%	high
December Weather	9°C (49°F)	77 mm (3.0 inches)	79%	moderate