December Weather in Lebanon, United States

Last updated: June 24, 2025

In December, the average temperature in Lebanon, United States hovers around -1°C (30°F), with a minimum plunge to -23°C (-9°F) and a maximum rise to 15°C (60°F). The region sees about 128 mm (5.0 in) of precipitation spread over 10 days, contributing to an average humidity of 81%. Be prepared for chilly and damp conditions!

December Temperature in Lebanon

In December in Lebanon, the average temperature is -1°C (30°F), with a maximum that can reach 15°C (60°F) and a minimum that can drop as low as -23°C (-9°F). Be prepared for a wide range of temperatures when traveling to Lebanon during this month.

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

The chart illustrates December temperature patterns in Lebanon, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lebanon, December typically has an average temperature of -1°C (30°F), with highs reaching up to 15°C (60°F) and lows dropping to around -23°C (-9°F).

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

December Precipitation in Lebanon

In Lebanon in December, the total precipitation amount is 128 mm (5.0 in) recorded over a span of 10 days.

December Precipitation Trends in Lebanon

The chart displays monthly precipitation patterns in Lebanon, 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 Lebanon, December typically receives around 128 mm (5.0 inches) of precipitation spread over approximately 10 days.

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

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Millimeters (mm) Inches (in)

December Humidity in Lebanon

In Lebanon in December, humidity is 81%. With an average temperature of -1°C (30°F), this humidity feels like an extra layer of chill settles in, making travel uncomfortable and the cold air cling to your skin, dampening the experience with every breath.

December Average Humidity in Lebanon

This chart illustrates the average monthly humidity levels in Lebanon, 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 Lebanon is approximately 81%, 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 Lebanon

In Lebanon 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 Lebanon, you can visit Hourly UV Index in Lebanon.

Maximum UV Index Levels in Lebanon for December

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

Data source: Lebanon 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 Lebanon Compares to Other Months

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

This table compares monthly weather conditions in Lebanon, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-3°C (26°F)	81 mm (3.2 inches)	86%	low
February Weather	-2°C (28°F)	92 mm (3.6 inches)	84%	moderate
March Weather	1°C (34°F)	81 mm (3.2 inches)	82%	moderate
April Weather	7°C (45°F)	130 mm (5.1 inches)	80%	very high
May Weather	13°C (56°F)	75 mm (3.0 inches)	72%	very high
June Weather	19°C (67°F)	86 mm (3.4 inches)	72%	very high
July Weather	22°C (72°F)	146 mm (5.7 inches)	67%	very high
August Weather	22°C (71°F)	82 mm (3.2 inches)	66%	very high
September Weather	18°C (64°F)	74 mm (2.9 inches)	71%	high
October Weather	12°C (53°F)	129 mm (5.1 inches)	78%	moderate
November Weather	4°C (40°F)	110 mm (4.3 inches)	84%	moderate
December Weather	-1°C (30°F)	128 mm (5.0 inches)	81%	low