Last updated: March 2, 2024
The weather in Altoona, 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 Altoona throughout August hovers around 78%.
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Average temperature
Maximum temperature
Humidity
In August, Altoona averages 127 mm (5.0 inches) of rainfall, typically over the course of 11 rainy days. The month enjoys an average of 13 hours 57 minutes of daylight, with the sun shining for approximately 10 hours 9 minutes each day. Additionally, there is a 58% probability of sunny days during this period.
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Chance of sun
In August, the UV Index in Altoona 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 | 8 | 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 | ||||||