January Weather in Izunokuni, Japan

Last updated: August 23, 2025

In January, the average temperature in Izunokuni, Japan hovers around 7°C (44°F), with potential lows dipping to -2°C (29°F) and highs reaching 18°C (64°F). Expect around 68 mm (2.7 in) of precipitation spread over 5 days, and a comfortable average humidity level of 76%.

January Temperature in Izunokuni

In January in Izunokuni, the average temperature is 7°C (44°F), with maximums reaching 18°C (64°F) and minimums dropping to as low as -2°C (29°F). Be prepared for a mix of mild and chilly weather, making it an ideal time to layer your clothing and enjoy a variety of outdoor activities.

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

The chart illustrates January temperature patterns in Izunokuni, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Izunokuni, January typically has an average temperature of 7°C (44°F), with highs reaching up to 18°C (64°F) and lows dropping to around -2°C (29°F).

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

January Precipitation in Izunokuni

In Izunokuni in January, the total precipitation amount is 68 mm (2.7 in) over the course of 5 days.

January Precipitation Trends in Izunokuni

The chart displays monthly precipitation patterns in Izunokuni, 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 Izunokuni, January typically receives around 68 mm (2.7 inches) of precipitation spread over approximately 5 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 Izunokuni

In Izunokuni in January humidity is 76%. With an average temperature of 7°C (44°F), this humidity feels like a chilly, damp blanket enveloping you, making outdoor activities less enjoyable and often leaving you feeling cold and clammy while traveling.

January Average Humidity in Izunokuni

This chart illustrates the average monthly humidity levels in Izunokuni, 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 Izunokuni is approximately 76%, 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 Izunokuni

In Izunokuni in January, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Izunokuni for better planning.

Maximum UV Index Levels in Izunokuni for January

The chart shows the monthly maximum UV Index (UVI) for Izunokuni 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 Izunokuni typically reaches 4, which falls under the moderate exposure category.

Data source: Izunokuni 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 Izunokuni Compares to Other Months

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

This table compares monthly weather conditions in Izunokuni, 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)	68 mm (2.7 inches)	76%	moderate
February Weather	7°C (45°F)	83 mm (3.2 inches)	74%	high
March Weather	11°C (51°F)	196 mm (7.7 inches)	70%	very high
April Weather	14°C (57°F)	168 mm (6.6 inches)	74%	very high
May Weather	18°C (65°F)	194 mm (7.6 inches)	81%	extreme
June Weather	21°C (71°F)	263 mm (10.3 inches)	88%	extreme
July Weather	25°C (77°F)	326 mm (12.8 inches)	93%	extreme
August Weather	27°C (81°F)	176 mm (6.9 inches)	90%	extreme
September Weather	23°C (74°F)	221 mm (8.7 inches)	86%	very high
October Weather	19°C (66°F)	305 mm (12.0 inches)	83%	high
November Weather	14°C (58°F)	94 mm (3.7 inches)	80%	moderate
December Weather	9°C (49°F)	74 mm (2.9 inches)	78%	moderate