Last updated: March 2, 2024
The weather in Chesapeake Beach, United States, during September is characterized by an average temperature of 23°C (73°F). Highs can soar to 31°C (87°F), while lows may dip to 15°C (59°F). Typically, the humidity level in Chesapeake Beach throughout September hovers around 75%.
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Average temperature
Maximum temperature
Humidity
In September, Chesapeake Beach averages 113 mm (4.4 inches) of rainfall, typically over the course of 10 rainy days. The month enjoys an average of 12 hours 23 minutes of daylight, with the sun shining for approximately 9 hours 22 minutes each day. Additionally, there is a 56% probability of sunny days during this period.
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Rainy days
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Chance of sun
In September, the UV Index in Chesapeake Beach reaches a maximum of 8, indicating a level of VeryHigh exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, 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 | 1 | 2 | 4 | 6 | 8 | 8 | 7 | 6 | 4 | 2 | 1 | 1 |
| Exposure | Low | Moderate | High | VeryHigh | High | Moderate | Low | ||||||
| Time to burn | 45 min | 30 min | 25 min | 15 min | 25 min | 30 min | 45 min | ||||||