Last updated: March 2, 2024
The weather in Charleston, United States, during October is characterized by an average temperature of 17°C (64°F). Highs can soar to 33°C (91°F), while lows may dip to 2°C (36°F). Typically, the humidity level in Charleston throughout October hovers around 69%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In October, Charleston averages 113 mm (4.5 inches) of rainfall, typically over the course of 10 rainy days. The month enjoys an average of 11 hours 14 minutes of daylight, with the sun shining for approximately 8 hours 5 minutes each day. Additionally, there is a 57% probability of sunny days during this period.
Precipitation
Rainy days
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Chance of sun
In October, the UV Index in Charleston 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 | 0 | 1 | 2 | 3 | 5 | 7 | 7 | 7 | 5 | 3 | 2 | 1 | 0 |
| Exposure | Low | Moderate | High | Moderate | Low | ||||||||
| Time to burn | 45 min | 30 min | 25 min | 30 min | 45 min | ||||||||