December Weather in Tatsugo, Japan

Last updated: August 23, 2025

In December, the average temperature in Tatsugo, Japan is a pleasant 18°C (65°F), with a minimum of 12°C (55°F) and highs reaching 25°C (77°F). Expect a bit of rain, as 125 mm (4.9 in) of precipitation typically falls over 16 days. Don't forget to stay hydrated, as the average humidity hovers around 74%.

December Temperature in Tatsugo

In December in Tatsugo, the average temperature is 18°C (65°F), with maximums reaching 25°C (77°F) and minimums dipping to as low as 12°C (55°F). This mild climate makes it an ideal time for exploring outdoor attractions and enjoying various activities.

December Weather in Tatsugo: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Tatsugo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Tatsugo, December typically has an average temperature of 18°C (65°F), with highs reaching up to 25°C (77°F) and lows dropping to around 12°C (55°F).

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

December Precipitation in Tatsugo

In Tatsugo in December, the precipitation amount is 125 mm (4.9 in) spread over 16 days.

December Precipitation Trends in Tatsugo

The chart displays monthly precipitation patterns in Tatsugo, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Tatsugo, December typically receives around 125 mm (4.9 inches) of precipitation spread over approximately 16 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

December Humidity in Tatsugo

In Tatsugo in December humidity is 74%. With an average temperature of 18°C (65°F), this humidity feels like a warm, sticky embrace that can make even short walks feel laborious, leading travelers to seek shade and refreshment more often.

December Average Humidity in Tatsugo

This chart illustrates the average monthly humidity levels in Tatsugo, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Tatsugo is approximately 74%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Tatsugo

In Tatsugo in December, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Tatsugo, you can refer to this Hourly UV Index in Tatsugo.

Maximum UV Index Levels in Tatsugo for December

The chart shows the monthly maximum UV Index (UVI) for Tatsugo in December, 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 December, the maximum UV index in Tatsugo typically reaches 6, which falls under the high exposure category.

Data source: Tatsugo December 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 December Weather in Tatsugo Compares to Other Months

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

This table compares monthly weather conditions in Tatsugo, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	16°C (61°F)	98 mm (3.9 inches)	72%	high
February Weather	16°C (61°F)	114 mm (4.5 inches)	70%	very high
March Weather	18°C (65°F)	159 mm (6.3 inches)	76%	extreme
April Weather	20°C (68°F)	121 mm (4.8 inches)	82%	extreme
May Weather	23°C (73°F)	213 mm (8.4 inches)	84%	extreme
June Weather	25°C (78°F)	433 mm (17.0 inches)	87%	extreme
July Weather	28°C (82°F)	185 mm (7.3 inches)	89%	extreme
August Weather	28°C (83°F)	193 mm (7.6 inches)	84%	extreme
September Weather	27°C (82°F)	223 mm (8.8 inches)	81%	extreme
October Weather	25°C (77°F)	151 mm (5.9 inches)	79%	very high
November Weather	21°C (71°F)	121 mm (4.8 inches)	77%	very high
December Weather	18°C (65°F)	125 mm (4.9 inches)	74%	high