January Weather in Tatsuno, Japan

Last updated: August 23, 2025

In January, the average temperature in Tatsuno, Japan hovers around -2°C (29°F). Expect chilly days, with minimum temperatures dipping to -18°C (0°F) and peaking at a maximum of 12°C (53°F). Humidity remains relatively high at 76%, contributing to a crisp atmosphere. On average, 75 mm (3.0 in) of precipitation can be expected over 12 days, so don’t forget your umbrella!

January Temperature in Tatsuno

In January in Tatsuno, the average temperature is -2°C (29°F), with a maximum reaching 12°C (53°F) and a minimum plummeting to -18°C (0°F). Travelers should be prepared for cold conditions and dress warmly to fully enjoy their visit.

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

The chart illustrates January temperature patterns in Tatsuno, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Tatsuno, January typically has an average temperature of -2°C (29°F), with highs reaching up to 12°C (53°F) and lows dropping to around -18°C (0°F).

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

January Precipitation in Tatsuno

In Tatsuno in January, the precipitation amount is 75 mm (3.0 in) over the course of 12 days.

January Precipitation Trends in Tatsuno

The chart displays monthly precipitation patterns in Tatsuno, 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 Tatsuno, January typically receives around 75 mm (3.0 inches) of precipitation spread over approximately 12 days.

Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

January Humidity in Tatsuno

In Tatsuno in January, humidity is 76%. With an average temperature of -2°C (29°F), this humidity feels like a biting chill that seeps into your bones, making outdoor activities less enjoyable and requiring extra layers to stay warm while exploring.

January Average Humidity in Tatsuno

This chart illustrates the average monthly humidity levels in Tatsuno, 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 Tatsuno is approximately 76%, 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 Tatsuno

In Tatsuno 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 Tatsuno for better planning.

Maximum UV Index Levels in Tatsuno for January

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

Data source: Tatsuno 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 Tatsuno Compares to Other Months

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

This table compares monthly weather conditions in Tatsuno, 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 (29°F)	75 mm (3.0 inches)	76%	moderate
February Weather	-1°C (30°F)	80 mm (3.2 inches)	74%	high
March Weather	4°C (40°F)	141 mm (5.6 inches)	70%	very high
April Weather	9°C (48°F)	143 mm (5.6 inches)	74%	very high
May Weather	15°C (58°F)	155 mm (6.1 inches)	81%	extreme
June Weather	18°C (65°F)	149 mm (5.8 inches)	88%	extreme
July Weather	22°C (72°F)	289 mm (11.4 inches)	93%	extreme
August Weather	23°C (74°F)	151 mm (5.9 inches)	90%	extreme
September Weather	19°C (66°F)	171 mm (6.7 inches)	86%	very high
October Weather	13°C (56°F)	237 mm (9.3 inches)	83%	high
November Weather	7°C (44°F)	66 mm (2.6 inches)	80%	moderate
December Weather	1°C (34°F)	84 mm (3.3 inches)	78%	moderate