January Weather in Date, Japan

Last updated: August 23, 2025

In January, the average temperature in Date, Japan hovers around -4°C (26°F), offering a brisk chill that defines the season. Temperatures can drop as low as -15°C (5°F), while reaching a maximum of 6°C (43°F). With an average humidity of 84%, this month experiences approximately 52 mm (2.0 in) of precipitation spread over 11 days, ensuring both frost and moisture contribute to the winter landscape.

January Temperature in Date

In January in Date, the average temperature is -4°C (26°F), with maximums reaching up to 6°C (43°F) and minimums plunging as low as -15°C (5°F). Travelers should be prepared for cold conditions and dress warmly for their visit.

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

The chart illustrates January temperature patterns in Date, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Date, January typically has an average temperature of -4°C (26°F), with highs reaching up to 6°C (43°F) and lows dropping to around -15°C (5°F).

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

January Precipitation in Date

In Date in January, the total precipitation amount is 52 mm (2.0 in), occurring over the course of 11 days.

January Precipitation Trends in Date

The chart displays monthly precipitation patterns in Date, 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 Date, January typically receives around 52 mm (2.0 inches) of precipitation spread over approximately 11 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 Date

In Date in January, humidity is 84%. With an average temperature of -4°C (26°F), this humidity feels like a biting cold that seeps through your layers, making outdoor activities brisk and invigorating but challenging for sustained exploration.

January Average Humidity in Date

This chart illustrates the average monthly humidity levels in Date, 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 Date is approximately 84%, 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 Date

In Date in January, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Date, you can visit Hourly UV Index in Date.

Maximum UV Index Levels in Date for January

The chart shows the monthly maximum UV Index (UVI) for Date 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 Date typically reaches 2, which falls under the low exposure category.

Data source: Date 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 Date Compares to Other Months

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

This table compares monthly weather conditions in Date, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-4°C (26°F)	52 mm (2.0 inches)	84%	low
February Weather	-3°C (27°F)	54 mm (2.1 inches)	83%	moderate
March Weather	2°C (35°F)	78 mm (3.1 inches)	81%	moderate
April Weather	6°C (44°F)	87 mm (3.4 inches)	81%	high
May Weather	12°C (54°F)	82 mm (3.2 inches)	86%	very high
June Weather	16°C (61°F)	104 mm (4.1 inches)	87%	very high
July Weather	20°C (69°F)	97 mm (3.8 inches)	93%	very high
August Weather	21°C (71°F)	143 mm (5.6 inches)	95%	very high
September Weather	18°C (66°F)	103 mm (4.1 inches)	88%	very high
October Weather	13°C (55°F)	103 mm (4.1 inches)	83%	high
November Weather	6°C (43°F)	92 mm (3.6 inches)	79%	moderate
December Weather	-1°C (30°F)	66 mm (2.6 inches)	80%	low