Last updated: March 2, 2024
The weather in Au Sable Forks, United States, during September is characterized by an average temperature of 15°C (60°F). Highs can soar to 28°C (82°F), while lows may dip to 3°C (37°F). Typically, the humidity level in Au Sable Forks throughout September hovers around 78%.
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Humidity
In September, Au Sable Forks averages 67 mm (2.7 inches) of rainfall, typically over the course of 10 rainy days. The month enjoys an average of 12 hours 27 minutes of daylight, with the sun shining for approximately 9 hours 40 minutes each day. Additionally, there is a 37% probability of sunny days during this period.
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In September, the UV Index in Au Sable Forks reaches a maximum of 7, indicating a level of High exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 25 minutes.
| 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UVI | 1 | 1 | 2 | 4 | 6 | 7 | 7 | 7 | 5 | 3 | 2 | 1 | 1 |
| Exposure | Low | Moderate | High | Moderate | Low | ||||||||
| Time to burn | 45 min | 30 min | 25 min | 30 min | 45 min | ||||||||