Last updated: March 2, 2024
The weather in Winona, United States, during August is characterized by an average temperature of 27°C (81°F). Highs can soar to 36°C (97°F), while lows may dip to 18°C (65°F). Typically, the humidity level in Winona throughout August hovers around 77%.
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Average temperature
Maximum temperature
Humidity
In August, Winona averages 120 mm (4.7 inches) of rainfall, typically over the course of 15 rainy days. The month enjoys an average of 13 hours 19 minutes of daylight, with the sun shining for approximately 10 hours 10 minutes each day. Additionally, there is a 41% probability of sunny days during this period.
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Rainy days
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Chance of sun
In August, the UV Index in Winona 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 | 1 | 2 | 3 | 5 | 8 | 10 | 11 | 10 | 8 | 5 | 3 | 1 | 1 |
| Exposure | Low | Moderate | VeryHigh | Extreme | VeryHigh | Moderate | Low | ||||||
| Time to burn | 45 min | 30 min | 15 min | 10 min | 15 min | 30 min | 45 min | ||||||