Last updated: June 24, 2025
In September, the average temperature in Alabama, United States is a pleasant 18°C (65°F). However, be prepared for a range, as temperatures can dip to a minimum of 4°C (39°F) and soar to a maximum of 32°C (90°F). Visitors should also expect some rain, with 73 mm (2.9 in) of precipitation spread over 9 days. With an average humidity of 76%, it's a good idea to pack accordingly!
In September in Alabama, the average temperature is 18°C (65°F). The maximum can reach 32°C (90°F), and the minimum can be as low as 4°C (39°F). Be prepared for a range of temperatures, making it ideal for layering your travel outfits.
In Alabama in September, the precipitation amount is 73 mm (2.9 in), occurring over the course of 9 days.
In Alabama in September, humidity is 76%. With an average temperature of 18°C (65°F), this humidity feels like a warm embrace, making travel a little sticky but enjoyable, as long as you stay hydrated and take breaks in the shade.
In Alabama in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Alabama.
UV Risk Categories
Weather in Alabama varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Alabama, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -3°C (27°F) | 78 mm (3.1 inches) | 91% | moderate |
| February Weather | -2°C (29°F) | 81 mm (3.2 inches) | 91% | moderate |
| March Weather | 2°C (35°F) | 71 mm (2.8 inches) | 88% | high |
| April Weather | 7°C (45°F) | 118 mm (4.6 inches) | 88% | very high |
| May Weather | 14°C (58°F) | 102 mm (4.0 inches) | 82% | very high |
| June Weather | 19°C (67°F) | 85 mm (3.4 inches) | 79% | very high |
| July Weather | 22°C (72°F) | 138 mm (5.4 inches) | 77% | very high |
| August Weather | 21°C (71°F) | 88 mm (3.5 inches) | 72% | very high |
| September Weather | 18°C (65°F) | 73 mm (2.9 inches) | 76% | high |
| October Weather | 12°C (54°F) | 132 mm (5.2 inches) | 83% | moderate |
| November Weather | 4°C (40°F) | 87 mm (3.4 inches) | 88% | moderate |
| December Weather | 0°C (32°F) | 90 mm (3.5 inches) | 87% | low |