January Weather in Omamacho-omama, Japan

Last updated: August 23, 2025

In January, the average temperature in Omamacho-omama, Japan hovers around 2°C (35°F). Expect a chilly range with minimums dipping to -10°C (14°F) and maximums reaching 13°C (56°F). Precipitation is moderate, with about 45 mm (1.8 in) spread over 9 days, complemented by a high average humidity of 88%. Be sure to layer up and enjoy the unique winter charm!

January Temperature in Omamacho-omama

In January in Omamacho-omama, the average temperature is 2°C (35°F). The maximum can reach 13°C (56°F), and the minimum can be as low as -10°C (14°F). Travelers should be prepared for chilly weather and pack accordingly for a mix of cool and cold conditions.

January Weather in Omamacho-omama: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Omamacho-omama, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Omamacho-omama, January typically has an average temperature of 2°C (35°F), with highs reaching up to 13°C (56°F) and lows dropping to around -10°C (14°F).

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

January Precipitation in Omamacho-omama

In Omamacho-omama in January, the precipitation amount is 45 mm (1.8 in) spread over 9 days.

January Precipitation Trends in Omamacho-omama

The chart displays monthly precipitation patterns in Omamacho-omama, 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 Omamacho-omama, January typically receives around 45 mm (1.8 inches) of precipitation spread over approximately 9 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 Omamacho-omama

In Omamacho-omama in January, humidity is 88%. With an average temperature of 2°C (35°F), this humidity feels like you're wrapped in a cold, damp blanket, making outdoor activities uncomfortable and travel challenging due to the chill seeping into your bones.

January Average Humidity in Omamacho-omama

This chart illustrates the average monthly humidity levels in Omamacho-omama, 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 Omamacho-omama 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 Omamacho-omama

In Omamacho-omama 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 Omamacho-omama, you can check the information here.

Maximum UV Index Levels in Omamacho-omama for January

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

Data source: Omamacho-omama 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 Omamacho-omama Compares to Other Months

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

This table compares monthly weather conditions in Omamacho-omama, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	2°C (35°F)	45 mm (1.8 inches)	88%	moderate
February Weather	2°C (37°F)	43 mm (1.7 inches)	86%	moderate
March Weather	7°C (44°F)	115 mm (4.5 inches)	81%	very high
April Weather	11°C (52°F)	123 mm (4.9 inches)	78%	very high
May Weather	17°C (62°F)	130 mm (5.1 inches)	81%	very high
June Weather	20°C (68°F)	166 mm (6.5 inches)	88%	extreme
July Weather	23°C (74°F)	262 mm (10.3 inches)	92%	extreme
August Weather	25°C (77°F)	179 mm (7.1 inches)	92%	extreme
September Weather	21°C (69°F)	184 mm (7.2 inches)	89%	very high
October Weather	15°C (60°F)	251 mm (9.9 inches)	87%	high
November Weather	9°C (49°F)	43 mm (1.7 inches)	85%	moderate
December Weather	4°C (39°F)	49 mm (1.9 inches)	86%	moderate