Last updated: June 24, 2025
In September, the average temperature in West Lebanon, United States is a pleasant 21°C (70°F). Expect a range between a cool 6°C (42°F) and a warm 34°C (93°F). Rainfall can be expected too, with an average precipitation of 71 mm (2.8 in) spread over 7 days. The average humidity hovers around a notable 80%, making it a month full of varied weather experiences.
In September in West Lebanon, the average temperature is 21°C (70°F), with maximums reaching 34°C (93°F) and minimums dropping as low as 6°C (42°F). This pleasant climate makes West Lebanon an ideal destination for travelers seeking a comfortable getaway.
In West Lebanon in September, the precipitation amount is 71 mm (2.8 in) over a span of 7 days.
In West Lebanon in September humidity is 80%. With an average temperature of 21°C (70°F), this humidity feels like a warm, enveloping blanket that can make even short walks feel draining, urging travelers to seek shade or a cool drink frequently.
In West Lebanon in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in West Lebanon.
UV Risk Categories
Weather in West Lebanon varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in West Lebanon, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -2°C (29°F) | 77 mm (3.0 inches) | 82% | moderate |
| February Weather | 0°C (31°F) | 78 mm (3.1 inches) | 83% | moderate |
| March Weather | 6°C (42°F) | 110 mm (4.3 inches) | 84% | high |
| April Weather | 11°C (52°F) | 110 mm (4.3 inches) | 85% | very high |
| May Weather | 18°C (65°F) | 151 mm (6.0 inches) | 79% | very high |
| June Weather | 23°C (74°F) | 105 mm (4.1 inches) | 82% | extreme |
| July Weather | 25°C (77°F) | 88 mm (3.5 inches) | 80% | very high |
| August Weather | 24°C (75°F) | 111 mm (4.4 inches) | 81% | very high |
| September Weather | 21°C (70°F) | 71 mm (2.8 inches) | 80% | very high |
| October Weather | 14°C (57°F) | 121 mm (4.7 inches) | 82% | high |
| November Weather | 5°C (41°F) | 77 mm (3.0 inches) | 88% | moderate |
| December Weather | 2°C (36°F) | 60 mm (2.4 inches) | 84% | low |