December Weather in Mizuho, Japan

Last updated: August 23, 2025

In December, the average temperature in Mizuho, Japan is a cool 6°C (43°F), with extremes ranging from a brisk -5°C (23°F) to a mild 18°C (65°F). Expect 94 mm (3.7 in) of precipitation over 12 days, contributing to an average humidity of 83%. Be prepared for a mix of chilly air and damp conditions!

December Temperature in Mizuho

In December in Mizuho, the average temperature is 6°C (43°F), with maximums reaching up to 18°C (65°F) and minimums dropping as low as -5°C (23°F). Be prepared for a mix of chilly and mild weather, making it essential to pack layers for your travels.

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

The chart illustrates December temperature patterns in Mizuho, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mizuho, December typically has an average temperature of 6°C (43°F), with highs reaching up to 18°C (65°F) and lows dropping to around -5°C (23°F).

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

December Precipitation in Mizuho

In Mizuho in December, the precipitation amount is 94 mm (3.7 in) spread over 12 days.

December Precipitation Trends in Mizuho

The chart displays monthly precipitation patterns in Mizuho, 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 Mizuho, December typically receives around 94 mm (3.7 inches) of precipitation spread over approximately 12 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 Mizuho

In Mizuho in December, humidity is 83%. With an average temperature of 6°C (43°F), this humidity feels like a brisk chill that can make you feel colder than the actual temperature, often leading to a damp and uncomfortable experience for traveling.

December Average Humidity in Mizuho

This chart illustrates the average monthly humidity levels in Mizuho, 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 Mizuho is approximately 83%, 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 Mizuho

In Mizuho 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 Mizuho, you can check the information here.

Maximum UV Index Levels in Mizuho for December

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

Data source: Mizuho 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 Mizuho Compares to Other Months

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

This table compares monthly weather conditions in Mizuho, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	4°C (39°F)	71 mm (2.8 inches)	82%	moderate
February Weather	4°C (40°F)	79 mm (3.1 inches)	79%	high
March Weather	9°C (48°F)	179 mm (7.1 inches)	74%	very high
April Weather	13°C (56°F)	223 mm (8.8 inches)	76%	very high
May Weather	18°C (65°F)	229 mm (9.0 inches)	83%	extreme
June Weather	22°C (71°F)	245 mm (9.7 inches)	87%	extreme
July Weather	26°C (78°F)	493 mm (19.4 inches)	93%	extreme
August Weather	27°C (82°F)	322 mm (12.7 inches)	91%	extreme
September Weather	23°C (74°F)	298 mm (11.7 inches)	87%	very high
October Weather	18°C (64°F)	234 mm (9.2 inches)	85%	high
November Weather	12°C (53°F)	74 mm (2.9 inches)	83%	moderate
December Weather	6°C (43°F)	94 mm (3.7 inches)	83%	moderate