December Weather in Kariwa, Japan

Last updated: August 23, 2025

In December, the average temperature in Kariwa, Japan hovers around 7°C (44°F). Expect a chilly minimum of -1°C (31°F), while the highs can reach up to 19°C (66°F). Be prepared for a wet month, as the region experiences about 263 mm (10.4 in) of precipitation over 26 days, accompanied by an average humidity of 86%.

December Temperature in Kariwa

In December in Kariwa, the average temperature is 7°C (44°F). The maximum can reach 19°C (66°F) and the minimum can be as low as -1°C (31°F). This range makes it a great time to enjoy layered clothing and experience the unique charm of Kariwa while staying comfortable.

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

The chart illustrates December temperature patterns in Kariwa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kariwa, December typically has an average temperature of 7°C (44°F), with highs reaching up to 19°C (66°F) and lows dropping to around -1°C (31°F).

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

December Precipitation in Kariwa

In Kariwa in December, the total precipitation amount is 263 mm (10.4 in) spread over 26 days.

December Precipitation Trends in Kariwa

The chart displays monthly precipitation patterns in Kariwa, 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 Kariwa, December typically receives around 263 mm (10.4 inches) of precipitation spread over approximately 26 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 Kariwa

In Kariwa in December, humidity is 86%. With an average temperature of 7°C (44°F), this humidity feels like a chilly, damp blanket wrapping around you, making outdoor activities uncomfortable and travel quite uninviting.

December Average Humidity in Kariwa

This chart illustrates the average monthly humidity levels in Kariwa, 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 Kariwa is approximately 86%, 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 Kariwa

In Kariwa 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 Kariwa, you can check the information here.

Maximum UV Index Levels in Kariwa for December

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

Data source: Kariwa 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 Kariwa Compares to Other Months

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

This table compares monthly weather conditions in Kariwa, 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)	202 mm (8.0 inches)	88%	moderate
February Weather	4°C (40°F)	165 mm (6.5 inches)	86%	moderate
March Weather	8°C (46°F)	127 mm (5.0 inches)	81%	high
April Weather	11°C (53°F)	113 mm (4.5 inches)	78%	very high
May Weather	17°C (63°F)	101 mm (4.0 inches)	81%	very high
June Weather	21°C (70°F)	101 mm (4.0 inches)	88%	very high
July Weather	25°C (78°F)	263 mm (10.3 inches)	92%	extreme
August Weather	27°C (81°F)	181 mm (7.1 inches)	92%	extreme
September Weather	23°C (74°F)	153 mm (6.0 inches)	89%	very high
October Weather	18°C (64°F)	168 mm (6.6 inches)	87%	high
November Weather	12°C (54°F)	177 mm (7.0 inches)	85%	moderate
December Weather	7°C (44°F)	263 mm (10.4 inches)	86%	moderate