Last updated: June 24, 2025
In Jeffersonville, United States, the average temperature in September is a comfortable 15°C (59°F). However, be prepared for a range of temperatures, as the minimum can drop to -5°C (24°F), while the maximum can soar to 31°C (87°F). Expect some rain, with an average precipitation of 87 mm (3.4 in) spread over 11 days. Additionally, the average humidity hovers around 78%, adding a bit of moisture to the air.
In September in Jeffersonville, the average temperature is 15°C (59°F), with maximums reaching 31°C (87°F) and minimums dropping as low as -5°C (24°F). Travelers should be prepared for a wide range of temperatures, ensuring they pack clothing suitable for both warm days and chilly evenings.
In Jeffersonville in September, the precipitation amount is 87 mm (3.4 in) over the course of 11 days.
In Jeffersonville in September, humidity is 78%. With an average temperature of 15°C (59°F), this humidity feels like a warm, enveloping blanket that clings to your skin, making outdoor activities a bit more tiring and requiring frequent breaks for hydration as you explore the area.
In Jeffersonville 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 Jeffersonville.
UV Risk Categories
Weather in Jeffersonville varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Jeffersonville, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -8°C (18°F) | 96 mm (3.8 inches) | 93% | low |
| February Weather | -6°C (21°F) | 92 mm (3.6 inches) | 92% | moderate |
| March Weather | -2°C (28°F) | 92 mm (3.6 inches) | 86% | moderate |
| April Weather | 5°C (42°F) | 124 mm (4.9 inches) | 85% | high |
| May Weather | 13°C (55°F) | 109 mm (4.3 inches) | 80% | very high |
| June Weather | 17°C (64°F) | 116 mm (4.6 inches) | 74% | very high |
| July Weather | 20°C (69°F) | 141 mm (5.6 inches) | 76% | very high |
| August Weather | 19°C (67°F) | 115 mm (4.5 inches) | 75% | very high |
| September Weather | 15°C (59°F) | 87 mm (3.4 inches) | 78% | high |
| October Weather | 9°C (48°F) | 165 mm (6.5 inches) | 86% | moderate |
| November Weather | 0°C (33°F) | 131 mm (5.2 inches) | 88% | moderate |
| December Weather | -5°C (23°F) | 92 mm (3.6 inches) | 89% | low |