Last updated: March 2, 2024
The weather in Saint Charles, United States, during July is characterized by an average temperature of 27°C (81°F). Highs can soar to 36°C (97°F), while lows may dip to 19°C (67°F). Typically, the humidity level in Saint Charles throughout July hovers around 74%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In July, Saint Charles averages 122 mm (4.8 inches) of rainfall, typically over the course of 12 rainy days. The month enjoys an average of 14 hours 31 minutes of daylight, with the sun shining for approximately 11 hours 31 minutes each day. Additionally, there is a 49% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In July, the UV Index in Saint Charles reaches a maximum of 10, indicating a level of VeryHigh exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, 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 | 2 | 3 | 5 | 8 | 9 | 10 | 10 | 8 | 6 | 4 | 2 | 1 |
| Exposure | Low | Moderate | VeryHigh | High | Moderate | Low | |||||||
| Time to burn | 45 min | 30 min | 15 min | 25 min | 30 min | 45 min | |||||||