Last updated: June 24, 2025
In Burlington, United States, the average temperature in September hovers around 19°C (66°F), offering a pleasant climate for various activities. Expect temperatures to range from a refreshing 3°C (38°F) at the low end to a warm 33°C (92°F) at the high end. However, don't forget your umbrella, as the region sees about 92 mm (3.6 in) of precipitation over 9 days, contributing to an average humidity level of 79%.
In September in Burlington, the average temperature is 19°C (66°F). Maximum temperatures can reach 33°C (92°F), while minimums can dip as low as 3°C (38°F). This variety in weather makes Burlington an ideal destination for travelers seeking both warm and cool experiences.
In Burlington in September, the precipitation amount is 92 mm (3.6 in) during 9 days, indicating a relatively wet period for the region.
In Burlington in September humidity is 79%. With an average temperature of 19°C (66°F), this humidity feels like a warm embrace, making it feel much warmer than the actual temperature and creating a heavy, sticky atmosphere that can be a bit uncomfortable for traveling.
In Burlington 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 Burlington.
UV Risk Categories
Weather in Burlington varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Burlington, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -5°C (24°F) | 60 mm (2.4 inches) | 85% | moderate |
| February Weather | -4°C (25°F) | 55 mm (2.2 inches) | 85% | moderate |
| March Weather | 3°C (37°F) | 61 mm (2.4 inches) | 85% | high |
| April Weather | 8°C (46°F) | 112 mm (4.4 inches) | 85% | very high |
| May Weather | 15°C (59°F) | 145 mm (5.7 inches) | 78% | very high |
| June Weather | 21°C (70°F) | 104 mm (4.1 inches) | 80% | very high |
| July Weather | 24°C (75°F) | 85 mm (3.4 inches) | 78% | very high |
| August Weather | 22°C (72°F) | 79 mm (3.1 inches) | 76% | very high |
| September Weather | 19°C (66°F) | 92 mm (3.6 inches) | 79% | very high |
| October Weather | 11°C (53°F) | 113 mm (4.4 inches) | 83% | moderate |
| November Weather | 3°C (38°F) | 47 mm (1.9 inches) | 88% | moderate |
| December Weather | -1°C (31°F) | 50 mm (2.0 inches) | 81% | low |