January Weather in Shima, Japan

Last updated: August 23, 2025

In January, the average temperature in Shima, Japan hovers around 9°C (48°F), with a minimum dipping to 1°C (34°F) and a pleasant maximum reaching 18°C (65°F). Expect about 63 mm (2.5 in) of precipitation over 6 days, contributing to a generally humid atmosphere with an average humidity of 82%.

January Temperature in Shima

In January in Shima, the average temperature is 9°C (48°F), with maximums reaching 18°C (65°F) and minimums dropping to as low as 1°C (34°F). This mild weather makes Shima a great destination for travelers looking to explore without extreme temperatures.

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

The chart illustrates January temperature patterns in Shima, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Shima, January typically has an average temperature of 9°C (48°F), with highs reaching up to 18°C (65°F) and lows dropping to around 1°C (34°F).

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

January Precipitation in Shima

In Shima in January, the precipitation amount is 63 mm (2.5 in) spread over a duration of 6 days.

January Precipitation Trends in Shima

The chart displays monthly precipitation patterns in Shima, 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 Shima, January typically receives around 63 mm (2.5 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 Shima

In Shima in January, humidity is 82%. With an average temperature of 9°C (48°F), this humidity feels like a damp chill that seeps into your bones, making it essential to dress in layers for your travels while keeping an umbrella handy for unexpected drizzles.

January Average Humidity in Shima

This chart illustrates the average monthly humidity levels in Shima, 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 Shima is approximately 82%, 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 Shima

In Shima 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 Shima for better planning.

Maximum UV Index Levels in Shima for January

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

Data source: Shima 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 Shima Compares to Other Months

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

This table compares monthly weather conditions in Shima, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	9°C (48°F)	63 mm (2.5 inches)	82%	moderate
February Weather	9°C (49°F)	67 mm (2.7 inches)	79%	moderate
March Weather	12°C (55°F)	161 mm (6.3 inches)	74%	very high
April Weather	16°C (61°F)	145 mm (5.7 inches)	76%	very high
May Weather	20°C (68°F)	178 mm (7.0 inches)	83%	extreme
June Weather	23°C (73°F)	257 mm (10.1 inches)	87%	extreme
July Weather	26°C (80°F)	264 mm (10.4 inches)	93%	extreme
August Weather	28°C (83°F)	151 mm (6.0 inches)	91%	extreme
September Weather	26°C (78°F)	255 mm (10.0 inches)	87%	very high
October Weather	21°C (70°F)	442 mm (17.4 inches)	85%	high
November Weather	16°C (61°F)	94 mm (3.7 inches)	83%	moderate
December Weather	11°C (53°F)	92 mm (3.6 inches)	83%	moderate