January Weather in Kokubu-matsuki, Japan

Last updated: August 23, 2025

In January, the average temperature in Kokubu-matsuki, Japan hovers around 7°C (44°F), with a minimum dipping to -5°C (23°F) and a maximum reaching 20°C (68°F). Rainfall is moderate, with about 54 mm (2.1 in) of precipitation over 6 days. The air remains relatively humid, boasting an average humidity of 72%.

January Temperature in Kokubu-matsuki

In January, in Kokubu-matsuki, the average temperature is 7°C (44°F). Maximums can reach 20°C (68°F), while minimums can drop as low as -5°C (23°F). Travelers should be prepared for a mix of mild and chilly weather conditions.

January Weather in Kokubu-matsuki: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Kokubu-matsuki, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kokubu-matsuki, January typically has an average temperature of 7°C (44°F), with highs reaching up to 20°C (68°F) and lows dropping to around -5°C (23°F).

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

January Precipitation in Kokubu-matsuki

In Kokubu-matsuki in January, the total precipitation amount is 54 mm (2.1 in) over the course of 6 days.

January Precipitation Trends in Kokubu-matsuki

The chart displays monthly precipitation patterns in Kokubu-matsuki, 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 Kokubu-matsuki, January typically receives around 54 mm (2.1 inches) of precipitation spread over approximately 6 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

January Humidity in Kokubu-matsuki

In Kokubu-matsuki in January, humidity is 72%. With an average temperature of 7°C (44°F), this humidity feels like a persistent chill that penetrates through clothing, making travel uncomfortable and damp, especially during outdoor excursions.

January Average Humidity in Kokubu-matsuki

This chart illustrates the average monthly humidity levels in Kokubu-matsuki, 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 Kokubu-matsuki is approximately 72%, 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 Kokubu-matsuki

In Kokubu-matsuki in January, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Kokubu-matsuki.

Maximum UV Index Levels in Kokubu-matsuki for January

The chart shows the monthly maximum UV Index (UVI) for Kokubu-matsuki 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 Kokubu-matsuki typically reaches 5, which falls under the moderate exposure category.

Data source: Kokubu-matsuki 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 Kokubu-matsuki Compares to Other Months

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

This table compares monthly weather conditions in Kokubu-matsuki, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	7°C (44°F)	54 mm (2.1 inches)	72%	moderate
February Weather	8°C (46°F)	101 mm (4.0 inches)	68%	high
March Weather	12°C (54°F)	169 mm (6.6 inches)	72%	very high
April Weather	16°C (60°F)	149 mm (5.9 inches)	79%	very high
May Weather	20°C (68°F)	252 mm (9.9 inches)	83%	extreme
June Weather	23°C (73°F)	392 mm (15.4 inches)	86%	extreme
July Weather	26°C (80°F)	406 mm (16.0 inches)	90%	extreme
August Weather	27°C (82°F)	204 mm (8.0 inches)	85%	extreme
September Weather	25°C (77°F)	248 mm (9.8 inches)	80%	extreme
October Weather	20°C (68°F)	143 mm (5.6 inches)	78%	very high
November Weather	14°C (57°F)	91 mm (3.6 inches)	76%	high
December Weather	8°C (47°F)	79 mm (3.1 inches)	74%	moderate