Last updated: March 2, 2024
The weather in Cudjoe Key, United States, during September is characterized by an average temperature of 28°C (83°F). Highs can soar to 30°C (86°F), while lows may dip to 26°C (78°F). Typically, the humidity level in Cudjoe Key throughout September hovers around 76%.
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In September, Cudjoe Key averages 189 mm (7.4 inches) of rainfall, typically over the course of 18 rainy days. The month enjoys an average of 12 hours 15 minutes of daylight, with the sun shining for approximately 10 hours 36 minutes each day. Additionally, there is a 34% probability of sunny days during this period.
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In September, the UV Index in Cudjoe Key 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 | 0 | 1 | 2 | 4 | 7 | 10 | 11 | 11 | 9 | 6 | 3 | 2 | 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 | ||||