Last updated: June 24, 2025
In December, the average temperature in South Lebanon, United States hovers around 5°C (42°F). Expect a broad range, with minimums dipping to -6°C (21°F) and maximums soaring to 17°C (64°F). During this month, 182 mm (7.2 in) of precipitation typically falls over 18 days, contributing to a high average humidity of 87%. Stay prepared for a chilly, damp atmosphere!
In December in South Lebanon, the average temperature is 5°C (42°F). Maximums can reach 17°C (64°F), while minimums can dip as low as -6°C (21°F). Be prepared for chilly weather and pack layers to ensure you stay comfortable during your visit.
In South Lebanon in December, the total precipitation amount is 182 mm (7.2 in) spread over 18 days.
In South Lebanon in December humidity is 87%. With an average temperature of 5°C (42°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and travel less inviting as the air becomes heavy and oppressive.
In South 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 South Lebanon, you can visit Hourly UV Index in South Lebanon.
UV Risk Categories
Weather in South Lebanon varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in South Lebanon, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 6°C (42°F) | 144 mm (5.7 inches) | 85% | low |
| February Weather | 5°C (42°F) | 181 mm (7.1 inches) | 84% | moderate |
| March Weather | 8°C (46°F) | 125 mm (4.9 inches) | 85% | high |
| April Weather | 10°C (51°F) | 113 mm (4.4 inches) | 83% | high |
| May Weather | 14°C (57°F) | 57 mm (2.3 inches) | 83% | very high |
| June Weather | 18°C (64°F) | 38 mm (1.5 inches) | 83% | very high |
| July Weather | 21°C (70°F) | 2 mm (0.1 inches) | 82% | very high |
| August Weather | 21°C (71°F) | 5 mm (0.2 inches) | 74% | very high |
| September Weather | 18°C (64°F) | 62 mm (2.5 inches) | 71% | very high |
| October Weather | 12°C (54°F) | 88 mm (3.5 inches) | 81% | moderate |
| November Weather | 8°C (47°F) | 130 mm (5.1 inches) | 87% | moderate |
| December Weather | 5°C (42°F) | 182 mm (7.2 inches) | 87% | low |