December Weather in Kasugai, Japan

Last updated: August 23, 2025

In December, the average temperature in Kasugai, Japan hovers around 7°C (45°F), with fluctuations between a minimum of -3°C (28°F) and a maximum of 21°C (70°F). Expect an average precipitation of 51 mm (2.0 in) spread over about 5 days, and don't forget your umbrella as the average humidity sits at a brisk 83%!

December Temperature in Kasugai

In December in Kasugai, the average temperature is 7°C (45°F). The maximum can reach 21°C (70°F), and the minimum can be as low as -3°C (28°F). It’s important to pack layers to ensure comfort during your travels, as temperatures can vary significantly throughout the day.

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

The chart illustrates December temperature patterns in Kasugai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kasugai, December typically has an average temperature of 7°C (45°F), with highs reaching up to 21°C (70°F) and lows dropping to around -3°C (28°F).

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

December Precipitation in Kasugai

In Kasugai in December, the precipitation amount is 51 mm (2.0 in) over a period of 5 days.

December Precipitation Trends in Kasugai

The chart displays monthly precipitation patterns in Kasugai, 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 Kasugai, December typically receives around 51 mm (2.0 inches) of precipitation spread over approximately 5 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 Kasugai

In Kasugai in December, humidity is 83%. With an average temperature of 7°C (45°F), this humidity feels like a chilly blanket wrapping around you, making travel somewhat uncomfortable as you navigate the dampness that settles in your clothes, leading to a heavy and muggy experience outdoors.

December Average Humidity in Kasugai

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

In Kasugai 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 Kasugai, you can check the information here.

Maximum UV Index Levels in Kasugai for December

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

Data source: Kasugai 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 Kasugai Compares to Other Months

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

This table compares monthly weather conditions in Kasugai, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	5°C (41°F)	43 mm (1.7 inches)	82%	moderate
February Weather	6°C (43°F)	52 mm (2.0 inches)	79%	high
March Weather	10°C (51°F)	126 mm (5.0 inches)	74%	very high
April Weather	15°C (59°F)	142 mm (5.6 inches)	76%	very high
May Weather	20°C (68°F)	173 mm (6.8 inches)	83%	extreme
June Weather	23°C (74°F)	148 mm (5.8 inches)	87%	extreme
July Weather	27°C (81°F)	295 mm (11.6 inches)	93%	extreme
August Weather	29°C (85°F)	169 mm (6.7 inches)	91%	extreme
September Weather	25°C (77°F)	165 mm (6.5 inches)	87%	very high
October Weather	19°C (66°F)	210 mm (8.2 inches)	85%	high
November Weather	13°C (55°F)	54 mm (2.1 inches)	83%	moderate
December Weather	7°C (45°F)	51 mm (2.0 inches)	83%	moderate