December Weather in Akaiwa, Japan

Last updated: August 23, 2025

In December, the average temperature in Akaiwa, Japan is a cool 8°C (46°F), with a possible minimum of -2°C (29°F) and a pleasant maximum of 20°C (69°F). Expect around 45 mm (1.8 in) of precipitation over approximately 6 days, contributing to an average humidity of 82%. Prepare for a mix of chilly and mild days!

December Temperature in Akaiwa

In December in Akaiwa, the average temperature is 8°C (46°F). The maximum can reach 20°C (69°F), while the minimum can drop as low as -2°C (29°F). Be prepared for a range of temperatures during your travels, so pack accordingly!

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

The chart illustrates December temperature patterns in Akaiwa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Akaiwa, December typically has an average temperature of 8°C (46°F), with highs reaching up to 20°C (69°F) and lows dropping to around -2°C (29°F).

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

December Precipitation in Akaiwa

In Akaiwa in December, the precipitation amount is 45 mm (1.8 in) over the course of 6 days.

December Precipitation Trends in Akaiwa

The chart displays monthly precipitation patterns in Akaiwa, 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 Akaiwa, December typically receives around 45 mm (1.8 inches) of precipitation spread over approximately 6 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 Akaiwa

In Akaiwa in December humidity is 82%. With an average temperature of 8°C (46°F), this humidity feels like a thick, damp blanket wrapping around you, making travel uncomfortable and creating a sense of heaviness in the air that can sap your energy quickly.

December Average Humidity in Akaiwa

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

In Akaiwa 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 Akaiwa for better planning.

Maximum UV Index Levels in Akaiwa for December

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

Data source: Akaiwa 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 Akaiwa Compares to Other Months

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

This table compares monthly weather conditions in Akaiwa, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	6°C (42°F)	33 mm (1.3 inches)	82%	moderate
February Weather	6°C (43°F)	47 mm (1.9 inches)	79%	high
March Weather	10°C (51°F)	94 mm (3.7 inches)	73%	very high
April Weather	15°C (59°F)	119 mm (4.7 inches)	74%	extreme
May Weather	20°C (68°F)	114 mm (4.5 inches)	84%	extreme
June Weather	23°C (74°F)	153 mm (6.0 inches)	86%	extreme
July Weather	27°C (81°F)	291 mm (11.5 inches)	92%	extreme
August Weather	29°C (85°F)	171 mm (6.7 inches)	92%	extreme
September Weather	25°C (77°F)	203 mm (8.0 inches)	87%	very high
October Weather	19°C (67°F)	169 mm (6.7 inches)	85%	high
November Weather	13°C (55°F)	30 mm (1.2 inches)	84%	moderate
December Weather	8°C (46°F)	45 mm (1.8 inches)	82%	moderate