Last updated: March 2, 2024
The weather in Hilton Head Island, United States, during July is characterized by an average temperature of 28°C (82°F). Highs can soar to 33°C (92°F), while lows may dip to 23°C (74°F). Typically, the humidity level in Hilton Head Island throughout July hovers around 80%.
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Average temperature
Maximum temperature
Humidity
In July, Hilton Head Island averages 156 mm (6.1 inches) of rainfall, typically over the course of 19 rainy days. The month enjoys an average of 13 hours 59 minutes of daylight, with the sun shining for approximately 11 hours 11 minutes each day. Additionally, there is a 31% probability of sunny days during this period.
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Chance of sun
In July, the UV Index in Hilton Head Island reaches a maximum of 11, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, during which unprotected skin may burn in as little as 10 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 | 3 | 5 | 8 | 10 | 11 | 11 | 9 | 7 | 4 | 2 | 1 |
| Exposure | Low | Moderate | VeryHigh | Extreme | VeryHigh | High | Moderate | Low | |||||
| Time to burn | 45 min | 30 min | 15 min | 10 min | 15 min | 25 min | 30 min | 45 min | |||||