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December Weather in Lebanon, United States

Last updated: June 24, 2025

In Lebanon, United States, the average temperature in December typically hovers around 2°C (36°F). Temperatures can range from a chilly -13°C (9°F) to a mild 18°C (64°F). Expect 109 mm (4.3 in) of precipitation, spread over 11 days, contributing to an average humidity of 80%. Stay prepared for a mix of cool and damp conditions!

December Temperature in Lebanon

In December in Lebanon, the average temperature is 2°C (36°F). Maximum temperatures can reach 18°C (64°F), while minimums can drop as low as -13°C (9°F). Travelers should be prepared for a wide range of temperatures and dress in layers to stay comfortable during their visit.

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 2°C (36°F), with highs reaching up to 18°C (64°F) and lows dropping to around -13°C (9°F).
JanFebMarAprMayJunJulAugSepOctNovDec323541516170767468584336
Data source: Temperature data for Lebanon generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Lebanon

In Lebanon in December, the precipitation amount is 109 mm (4.3 in), occurring over a span of 11 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 109 mm (4.3 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec7110310210913310213413810213487110
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Lebanon

In Lebanon in December humidity is 80%. With an average temperature of 2°C (36°F), this humidity feels like a heavy, damp chill that seeps into your bones, making it challenging for outdoor adventures and often necessitating layered clothing to stay warm and comfortable while exploring.

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 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%82%81%78%70%69%62%65%68%74%82%80%
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.
JanFebMarAprMayJunJulAugSepOctNovDec356810101098642
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.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)71 mm (2.8 inches)84%moderate
February Weather2°C (35°F)103 mm (4.1 inches)82%moderate
March Weather5°C (41°F)102 mm (4.0 inches)81%high
April Weather11°C (51°F)109 mm (4.3 inches)78%very high
May Weather16°C (61°F)133 mm (5.3 inches)69%very high
June Weather21°C (71°F)102 mm (4.0 inches)69%very high
July Weather25°C (77°F)134 mm (5.3 inches)62%very high
August Weather23°C (74°F)138 mm (5.4 inches)65%very high
September Weather20°C (68°F)102 mm (4.0 inches)68%very high
October Weather14°C (58°F)134 mm (5.3 inches)74%high
November Weather6°C (44°F)87 mm (3.4 inches)82%moderate
December Weather2°C (36°F)109 mm (4.3 inches)80%low

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