December Weather in Kawanishi, Japan

Last updated: August 23, 2025

In Kawanishi, Japan, the average temperature in December hovers around 6°C (43°F). While you might experience chilly lows of -7°C (19°F), the occasional warm day can reach up to 21°C (70°F). Expect 64 mm (2.5 in) of precipitation spread across 7 days, with an average humidity level of a brisk 83%. Prepare accordingly for a mix of cool and damp weather!

December Temperature in Kawanishi

In December in Kawanishi, the average temperature is 6°C (43°F). Maximum temperatures can reach 21°C (70°F), while minimums can drop as low as -7°C (19°F). It's advisable to pack layers to stay comfortable during your travels.

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

The chart illustrates December temperature patterns in Kawanishi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kawanishi, December typically has an average temperature of 6°C (43°F), with highs reaching up to 21°C (70°F) and lows dropping to around -7°C (19°F).

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

December Precipitation in Kawanishi

In Kawanishi in December, the precipitation amount is 64 mm (2.5 in) accumulated over a period of 7 days.

December Precipitation Trends in Kawanishi

The chart displays monthly precipitation patterns in Kawanishi, 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 Kawanishi, December typically receives around 64 mm (2.5 inches) of precipitation spread over approximately 7 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 Kawanishi

In Kawanishi 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 Kawanishi

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

In Kawanishi 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 Kawanishi, you can check the information here.

Maximum UV Index Levels in Kawanishi for December

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

Data source: Kawanishi 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 Kawanishi Compares to Other Months

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

This table compares monthly weather conditions in Kawanishi, 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)	52 mm (2.1 inches)	82%	moderate
February Weather	4°C (40°F)	62 mm (2.4 inches)	79%	high
March Weather	9°C (48°F)	120 mm (4.7 inches)	74%	very high
April Weather	13°C (56°F)	155 mm (6.1 inches)	76%	very high
May Weather	18°C (65°F)	151 mm (6.0 inches)	83%	extreme
June Weather	22°C (71°F)	158 mm (6.2 inches)	87%	extreme
July Weather	26°C (79°F)	341 mm (13.4 inches)	93%	extreme
August Weather	28°C (82°F)	238 mm (9.4 inches)	91%	extreme
September Weather	23°C (74°F)	193 mm (7.6 inches)	87%	very high
October Weather	18°C (64°F)	243 mm (9.6 inches)	85%	high
November Weather	12°C (53°F)	46 mm (1.8 inches)	83%	moderate
December Weather	6°C (43°F)	64 mm (2.5 inches)	83%	moderate