January Weather in Omura, Japan

Last updated: August 23, 2025

In January, the average temperature in Omura, Japan is a crisp 8°C (46°F). You'll experience a chilly minimum of -1°C (31°F), while the days can warm up to a comfortable 17°C (63°F). Expect about 53 mm (2.1 in) of precipitation over approximately 6 days, with the air being quite humid at an average of 73%.

January Temperature in Omura

In January in Omura, the average temperature is 8°C (46°F). Maximum temperatures can reach 17°C (63°F), while minimums can drop as low as -1°C (31°F). Be sure to pack layers and be prepared for a mix of weather conditions while traveling during this time.

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

The chart illustrates January temperature patterns in Omura, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Omura, January typically has an average temperature of 8°C (46°F), with highs reaching up to 17°C (63°F) and lows dropping to around -1°C (31°F).

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

January Precipitation in Omura

In Omura in January, the precipitation amount is 53 mm (2.1 in) over a span of 6 days.

January Precipitation Trends in Omura

The chart displays monthly precipitation patterns in Omura, 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 Omura, January typically receives around 53 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.

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Millimeters (mm) Inches (in)

January Humidity in Omura

In Omura in January humidity is 73%. With an average temperature of 8°C (46°F), this humidity feels like a damp chill that wraps around you, making outdoor activities less comfortable for traveling and often leaving you yearning for a warm shelter to escape the cool, moist air.

January Average Humidity in Omura

This chart illustrates the average monthly humidity levels in Omura, 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 Omura is approximately 73%, 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 Omura

In Omura 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 Omura for better planning.

Maximum UV Index Levels in Omura for January

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

Data source: Omura 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 Omura Compares to Other Months

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

This table compares monthly weather conditions in Omura, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	8°C (46°F)	53 mm (2.1 inches)	73%	moderate
February Weather	8°C (47°F)	89 mm (3.5 inches)	69%	high
March Weather	12°C (53°F)	140 mm (5.5 inches)	71%	very high
April Weather	15°C (60°F)	127 mm (5.0 inches)	79%	very high
May Weather	20°C (68°F)	204 mm (8.0 inches)	87%	extreme
June Weather	23°C (74°F)	230 mm (9.1 inches)	91%	extreme
July Weather	27°C (80°F)	409 mm (16.1 inches)	97%	extreme
August Weather	28°C (83°F)	321 mm (12.6 inches)	94%	extreme
September Weather	25°C (77°F)	220 mm (8.7 inches)	84%	extreme
October Weather	20°C (69°F)	113 mm (4.4 inches)	79%	high
November Weather	15°C (59°F)	66 mm (2.6 inches)	75%	high
December Weather	10°C (50°F)	78 mm (3.1 inches)	72%	moderate