December Weather in Bibai, Japan

Last updated: August 23, 2025

In December, the average temperature in Bibai, Japan hovers around -3°C (27°F). While the mercury can dip to a chilling -16°C (3°F), it can also reach a pleasant 13°C (56°F). Expect 84 mm (3.3 in) of precipitation spread over 23 days, contributing to an average humidity of 80%. Stay prepared for a wintery mix!

December Temperature in Bibai

In December in Bibai, the average temperature is -3°C (27°F), with a maximum that can reach 13°C (56°F) and a minimum dropping as low as -16°C (3°F). Be prepared for cold weather and dress accordingly if you're planning to visit during this time.

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

The chart illustrates December temperature patterns in Bibai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bibai, December typically has an average temperature of -3°C (27°F), with highs reaching up to 13°C (56°F) and lows dropping to around -16°C (3°F).

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

December Precipitation in Bibai

In Bibai in December, the total precipitation amount is 84 mm (3.3 in), occurring over the course of 23 days.

December Precipitation Trends in Bibai

The chart displays monthly precipitation patterns in Bibai, 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 Bibai, December typically receives around 84 mm (3.3 inches) of precipitation spread over approximately 23 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 Bibai

In Bibai in December humidity is 80%. With an average temperature of -3°C (27°F), this humidity feels like an uncomfortable chill that penetrates your clothing, making every step outside feel like a battle against the cold.

December Average Humidity in Bibai

This chart illustrates the average monthly humidity levels in Bibai, 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 Bibai is approximately 80%, 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 Bibai

In Bibai in December, 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 Bibai, you can visit Hourly UV Index in Bibai.

Maximum UV Index Levels in Bibai for December

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

Data source: Bibai 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 Bibai Compares to Other Months

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

This table compares monthly weather conditions in Bibai, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-6°C (21°F)	48 mm (1.9 inches)	84%	low
February Weather	-5°C (24°F)	61 mm (2.4 inches)	83%	moderate
March Weather	1°C (34°F)	75 mm (2.9 inches)	81%	high
April Weather	7°C (44°F)	72 mm (2.8 inches)	81%	high
May Weather	13°C (55°F)	89 mm (3.5 inches)	86%	very high
June Weather	16°C (61°F)	91 mm (3.6 inches)	87%	very high
July Weather	20°C (69°F)	84 mm (3.3 inches)	93%	very high
August Weather	21°C (70°F)	164 mm (6.5 inches)	95%	very high
September Weather	18°C (64°F)	85 mm (3.3 inches)	88%	very high
October Weather	11°C (53°F)	120 mm (4.7 inches)	83%	moderate
November Weather	5°C (41°F)	115 mm (4.5 inches)	79%	moderate
December Weather	-3°C (27°F)	84 mm (3.3 inches)	80%	low