Last updated: March 2, 2024
The weather in Oswego, United States, during September is characterized by an average temperature of 19°C (66°F). Highs can soar to 27°C (80°F), while lows may dip to 11°C (52°F). Typically, the humidity level in Oswego throughout September hovers around 78%.
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Average temperature
Maximum temperature
Humidity
In September, Oswego averages 95 mm (3.8 inches) of rainfall, typically over the course of 10 rainy days. The month enjoys an average of 12 hours 26 minutes of daylight, with the sun shining for approximately 9 hours 44 minutes each day. Additionally, there is a 42% probability of sunny days during this period.
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Chance of sun
In September, the UV Index in Oswego 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 | 4 | 2 | 1 | 1 |
| Exposure | Low | Moderate | High | Moderate | Low | ||||||||
| Time to burn | 45 min | 30 min | 25 min | 30 min | 45 min | ||||||||