January Weather in Anan, Japan

Last updated: August 23, 2025

In January, the average temperature in Anan, Japan hovers around 9°C (48°F). Temperatures can dip to a chilly 1°C (35°F) at times, while reaching a comfortable maximum of 18°C (64°F). Expect around 59 mm (2.3 in) of precipitation spread over 6 days, and be prepared for a moderate average humidity of 74%.

January Temperature in Anan

In January in Anan, the average temperature is 9°C (48°F). The maximum can reach 18°C (64°F), and the minimum can be as low as 1°C (35°F). Be prepared for cool weather and pack accordingly!

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

The chart illustrates January temperature patterns in Anan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Anan, January typically has an average temperature of 9°C (48°F), with highs reaching up to 18°C (64°F) and lows dropping to around 1°C (35°F).

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

January Precipitation in Anan

In Anan in January, the precipitation amount is 59 mm (2.3 in) over the course of 6 days.

January Precipitation Trends in Anan

The chart displays monthly precipitation patterns in Anan, 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 Anan, January typically receives around 59 mm (2.3 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 Anan

In Anan in January humidity is 74%. With an average temperature of 9°C (48°F), this humidity feels like a damp chill that seeps into your bones, making travel uncomfortable and necessitating warm layers to fully enjoy your explorations.

January Average Humidity in Anan

This chart illustrates the average monthly humidity levels in Anan, 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 Anan is approximately 74%, 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 Anan

In Anan 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 Anan for better planning.

Maximum UV Index Levels in Anan for January

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

Data source: Anan 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 Anan Compares to Other Months

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

This table compares monthly weather conditions in Anan, 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)	59 mm (2.3 inches)	74%	moderate
February Weather	9°C (48°F)	68 mm (2.7 inches)	70%	high
March Weather	11°C (53°F)	128 mm (5.0 inches)	70%	very high
April Weather	14°C (58°F)	128 mm (5.0 inches)	76%	extreme
May Weather	18°C (65°F)	174 mm (6.9 inches)	82%	extreme
June Weather	22°C (71°F)	200 mm (7.9 inches)	86%	extreme
July Weather	25°C (78°F)	275 mm (10.8 inches)	91%	extreme
August Weather	27°C (81°F)	140 mm (5.5 inches)	88%	extreme
September Weather	25°C (77°F)	233 mm (9.2 inches)	85%	very high
October Weather	21°C (70°F)	337 mm (13.3 inches)	82%	high
November Weather	16°C (62°F)	64 mm (2.5 inches)	79%	high
December Weather	11°C (53°F)	68 mm (2.7 inches)	77%	moderate