Last updated: June 24, 2025
In September, the average temperature in New Knoxville, United States is a pleasant 20°C (69°F). However, be prepared for some variability, as temperatures can dip to a cool 4°C (40°F) or rise to a warm 33°C (92°F). Expect about 72 mm (2.8 in) of precipitation over 8 days, contributing to an average humidity level of 78%. Perfect for those who appreciate a bit of everything in their weather!
In September in New Knoxville, the average temperature is 20°C (69°F). Maximums can reach 33°C (92°F), while minimums can drop as low as 4°C (40°F). This varied climate makes New Knoxville an ideal destination for travelers seeking both warmth and cooler experiences.
In New Knoxville in September, the precipitation amount is 72 mm (2.8 in) over the course of 8 days.
In New Knoxville in September, humidity is 78%. With an average temperature of 20°C (69°F), this humidity feels like a warm, enveloping blanket, making travel somewhat uncomfortable as sweat clings to your skin and the air feels thick and heavy, urging you to seek out shaded areas and refreshing drinks.
In New Knoxville 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 New Knoxville.
UV Risk Categories
Weather in New Knoxville varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in New Knoxville, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -1°C (30°F) | 74 mm (2.9 inches) | 88% | moderate |
| February Weather | 0°C (32°F) | 95 mm (3.7 inches) | 87% | moderate |
| March Weather | 5°C (42°F) | 103 mm (4.0 inches) | 87% | high |
| April Weather | 10°C (51°F) | 102 mm (4.0 inches) | 87% | very high |
| May Weather | 17°C (63°F) | 123 mm (4.8 inches) | 81% | very high |
| June Weather | 22°C (72°F) | 121 mm (4.8 inches) | 82% | very high |
| July Weather | 24°C (76°F) | 105 mm (4.1 inches) | 81% | very high |
| August Weather | 23°C (73°F) | 104 mm (4.1 inches) | 78% | very high |
| September Weather | 20°C (69°F) | 72 mm (2.8 inches) | 78% | very high |
| October Weather | 14°C (57°F) | 98 mm (3.9 inches) | 82% | high |
| November Weather | 5°C (42°F) | 85 mm (3.4 inches) | 89% | moderate |
| December Weather | 2°C (35°F) | 70 mm (2.8 inches) | 86% | low |