Last updated: March 2, 2024
The weather in Johnson City, United States, during August is characterized by an average temperature of 21°C (70°F). Highs can soar to 31°C (88°F), while lows may dip to 10°C (50°F). Typically, the humidity level in Johnson City throughout August hovers around 62%.
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Humidity
In August, Johnson City averages 108 mm (4.2 inches) of rainfall, typically over the course of 12 rainy days. The month enjoys an average of 13 hours 47 minutes of daylight, with the sun shining for approximately 9 hours 54 minutes each day. Additionally, there is a 34% probability of sunny days during this period.
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In August, the UV Index in Johnson City 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 | 2 | 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 | ||||||