January Weather in Kariwa, Japan

Last updated: August 23, 2025

In January, the average temperature in Kariwa, Japan hovers around 4°C (39°F), offering a chilly yet invigorating atmosphere. Expect minimums to dip as low as -5°C (23°F), while maximum temperatures can reach up to 13°C (56°F). With an average precipitation of 202 mm (8.0 in) spread over 22 days, it's wise to carry an umbrella. Additionally, the air is quite moist, with an average humidity level of 88%, perfect for those who love the feel of a crisp, cool climate!

January Temperature in Kariwa

In January in Kariwa, the average temperature is 4°C (39°F), with maximums reaching 13°C (56°F) and minimums dropping as low as -5°C (23°F). Travelers should prepare for chilly weather and pack accordingly to stay comfortable during their visit.

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

The chart illustrates January 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, January typically has an average temperature of 4°C (39°F), with highs reaching up to 13°C (56°F) and lows dropping to around -5°C (23°F).

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

January Precipitation in Kariwa

In Kariwa in January, the precipitation amount is 202 mm (8.0 in) over the course of 22 days.

January Precipitation Trends in Kariwa

The chart displays monthly precipitation patterns in Kariwa, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Kariwa, January typically receives around 202 mm (8.0 inches) of precipitation spread over approximately 22 days.

Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

January Humidity in Kariwa

In Kariwa in January, humidity is 88%. With an average temperature of 4°C (39°F), this humidity feels like a damp chill that seeps into your bones, making travel uncomfortable and necessitating extra layers to stay warm.

January Average Humidity in Kariwa

This chart illustrates the average monthly humidity levels in Kariwa, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Kariwa is approximately 88%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Kariwa

In Kariwa in January, 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 January

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

Data source: Kariwa January 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 January 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 January’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 January’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