Last updated: June 24, 2025
In Caledonia, United States, the average temperature for September hovers around 19°C (66°F). However, temperatures can fluctuate significantly, with a minimum of 1°C (34°F) and reaching up to a scorching 35°C (96°F). During this month, you can expect about 108 mm (4.3 in) of precipitation over 10 days, contributing to an average humidity level of 79%. Prepare for a variety of weather conditions while enjoying your time!
In September in Caledonia, the average temperature is 19°C (66°F). The maximum temperature can reach 35°C (96°F), while the minimum can drop as low as 1°C (34°F). This diverse range of temperatures makes Caledonia an intriguing destination for travelers, offering both warm days and cool evenings suitable for a variety of outdoor activities.
In Caledonia in September, the total precipitation amount is 108 mm (4.3 in) spread over a duration of 10 days.
In Caledonia 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 Caledonia 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 Caledonia.
UV Risk Categories
Weather in Caledonia varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Caledonia, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -3°C (26°F) | 68 mm (2.7 inches) | 87% | low |
| February Weather | -3°C (27°F) | 73 mm (2.9 inches) | 87% | moderate |
| March Weather | 3°C (37°F) | 69 mm (2.7 inches) | 86% | moderate |
| April Weather | 8°C (47°F) | 86 mm (3.4 inches) | 87% | very high |
| May Weather | 15°C (60°F) | 147 mm (5.8 inches) | 82% | very high |
| June Weather | 21°C (70°F) | 118 mm (4.6 inches) | 81% | very high |
| July Weather | 24°C (75°F) | 81 mm (3.2 inches) | 78% | very high |
| August Weather | 22°C (72°F) | 74 mm (2.9 inches) | 79% | very high |
| September Weather | 19°C (66°F) | 108 mm (4.3 inches) | 79% | high |
| October Weather | 12°C (53°F) | 134 mm (5.3 inches) | 82% | moderate |
| November Weather | 4°C (39°F) | 64 mm (2.5 inches) | 87% | moderate |
| December Weather | 0°C (32°F) | 67 mm (2.6 inches) | 86% | low |