Last updated: March 2, 2024
The weather in Florence, United States, during September is characterized by an average temperature of 15°C (59°F). Highs can soar to 30°C (85°F), while lows may dip to 2°C (35°F). Typically, the humidity level in Florence throughout September hovers around 78%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In September, Florence averages 95 mm (3.7 inches) of rainfall, typically over the course of 11 rainy days. The month enjoys an average of 12 hours 28 minutes of daylight, with the sun shining for approximately 8 hours 44 minutes each day. Additionally, there is a 48% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In September, the UV Index in Florence 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 | 6 | 5 | 3 | 2 | 1 | 1 |
| Exposure | Low | Moderate | High | Moderate | Low | ||||||||
| Time to burn | 45 min | 30 min | 25 min | 30 min | 45 min | ||||||||