Last updated: March 2, 2024
The weather in Potomac, United States, during August is characterized by an average temperature of 25°C (77°F). Highs can soar to 35°C (95°F), while lows may dip to 16°C (60°F). Typically, the humidity level in Potomac throughout August hovers around 72%.
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Average temperature
Maximum temperature
Humidity
In August, Potomac averages 150 mm (5.9 inches) of rainfall, typically over the course of 16 rainy days. The month enjoys an average of 13 hours 36 minutes of daylight, with the sun shining for approximately 10 hours 20 minutes each day. Additionally, there is a 35% probability of sunny days during this period.
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Chance of sun
In August, the UV Index in Potomac reaches a maximum of 9, indicating a level of VeryHigh exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, 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 | 3 | 5 | 7 | 8 | 9 | 9 | 7 | 5 | 3 | 2 | 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 | ||||||