Last updated: March 2, 2024
The weather in Surfside Beach, United States, during September is characterized by an average temperature of 27°C (81°F). Highs can soar to 32°C (90°F), while lows may dip to 21°C (69°F). Typically, the humidity level in Surfside Beach throughout September hovers around 73%.
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Average temperature
Maximum temperature
Humidity
In September, Surfside Beach averages 211 mm (8.3 inches) of rainfall, typically over the course of 17 rainy days. The month enjoys an average of 12 hours 17 minutes of daylight, with the sun shining for approximately 9 hours 16 minutes each day. Additionally, there is a 50% probability of sunny days during this period.
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Chance of sun
In September, the UV Index in Surfside Beach 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 | |
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UVI | 1 | 1 | 2 | 4 | 7 | 10 | 11 | 10 | 8 | 6 | 3 | 1 | 1 |
Exposure | Low | Moderate | High | VeryHigh | Extreme | VeryHigh | High | Moderate | Low | ||||
Time to burn | 45 min | 30 min | 25 min | 15 min | 10 min | 15 min | 25 min | 30 min | 45 min |