Last updated: March 2, 2024
The weather in Madison, United States, during September is characterized by an average temperature of 21°C (70°F). Highs can soar to 33°C (92°F), while lows may dip to 8°C (48°F). Typically, the humidity level in Madison throughout September hovers around 68%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In September, Madison averages 107 mm (4.2 inches) of rainfall, typically over the course of 10 rainy days. The month enjoys an average of 12 hours 22 minutes of daylight, with the sun shining for approximately 9 hours 2 minutes each day. Additionally, there is a 57% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In September, the UV Index in Madison reaches a maximum of 8, indicating a level of VeryHigh exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 15 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 | 8 | 8 | 8 | 6 | 4 | 2 | 1 | 1 |
| Exposure | Low | Moderate | High | VeryHigh | High | Moderate | Low | ||||||
| Time to burn | 45 min | 30 min | 25 min | 15 min | 25 min | 30 min | 45 min | ||||||